BEGIN:VCALENDAR VERSION:2.0 PRODID:-//CERN//INDICO//EN BEGIN:VEVENT SUMMARY:Hyperon studies and development of Forward tracker for HADES detec tor DTSTART;VALUE=DATE-TIME:20190628T135000Z DTEND;VALUE=DATE-TIME:20190628T140500Z DTSTAMP;VALUE=DATE-TIME:20260609T214539Z UID:indico-contribution-1-96@indico.koza.if.uj.edu.pl DESCRIPTION:Speakers: Narendra Rathod (The Marian Smoluchowski Institute o f Physics\, Jagiellonian University)\nThe HADES detector is a versatile de tector specialized for dilepton and strangeness measurements at GSI/FAIR [ 1]. It has been recently updated by an electromagnetic calorimeter\, and a new RICH photon detector. In this year an additional Forward Detector (FD) will be installed. It will extend an acceptance of HADES at forward angles ( 0 to 6.5 degree ) essential for many reactions channel s. The Straw Trackers are currently assembled by the Krakow and FZ Juelich teams\, based on developments for the PANDA Forward Tracker [2]. As this detector will operate in a field-free region the particle identifi cation has to be performed based on dE/dx and time-of-flight measurements. Additionally\, the straw tube tracking stations will be used for recons truction of off-vertex decays. The increase of acceptance will play a sig nificant role in studies of N(π)+N and p+A reactions where this detector is essential for exclusive channels and PWA analyses of hyperon production and decays like for example Λ→p π\, Λ* (Σ*) → Λ e+e- (hyp eron transition form-factors) and Ξ- → Λ π-. In the present contribut ion the feasibility studies of hyperon reconstruction together with perfor mance of the tracking detectors obtained in various test will be presented .\n\nhttps://indico.koza.if.uj.edu.pl/event/1/contributions/96/ LOCATION:Collegium Maius URL:https://indico.koza.if.uj.edu.pl/event/1/contributions/96/ END:VEVENT BEGIN:VEVENT SUMMARY:Fukushima Accident - 8 years after DTSTART;VALUE=DATE-TIME:20190626T170000Z DTEND;VALUE=DATE-TIME:20190626T180000Z DTSTAMP;VALUE=DATE-TIME:20260609T214539Z UID:indico-contribution-1-1@indico.koza.if.uj.edu.pl DESCRIPTION:Speakers: Ryugo Hayano (University of Tokyo)\nhttps://indico.k oza.if.uj.edu.pl/event/1/contributions/1/ LOCATION:Sukiennice Gallery of 19th-Century Polish Art URL:https://indico.koza.if.uj.edu.pl/event/1/contributions/1/ END:VEVENT BEGIN:VEVENT SUMMARY:Leggett-Garg inequalities and neutrino oscillations DTSTART;VALUE=DATE-TIME:20190626T095000Z DTEND;VALUE=DATE-TIME:20190626T100500Z DTSTAMP;VALUE=DATE-TIME:20260609T214539Z UID:indico-contribution-1-117@indico.koza.if.uj.edu.pl DESCRIPTION:Speakers: Christiane Schultze ()\nThe oscillation of neutrinos was predicted in the mid of the last century. Since then they were intens ively studied both theoretically and experimentally since a couple of phen omena like e.g CP violation (charge-conjugation-parity) are conjectured. A lso\, it is not known which neutrino is the heaviest\, formulated as the m ass hierarchy problem. I will focus on how tools from foundations of quant um mechanics can give answers to these riddles in neutrino physics. In par ticular\, a type of the Leggett-Garg inequalities\, kind of time-like vers ions of Bell inequalities\, will be investigated for neutrinos propagating through matter.\n\nhttps://indico.koza.if.uj.edu.pl/event/1/contributions /117/ LOCATION:Collegium Maius URL:https://indico.koza.if.uj.edu.pl/event/1/contributions/117/ END:VEVENT BEGIN:VEVENT SUMMARY:Development of new heavy and efficient scintillators for medical i maging and radiation detection DTSTART;VALUE=DATE-TIME:20190628T113500Z DTEND;VALUE=DATE-TIME:20190628T115500Z DTSTAMP;VALUE=DATE-TIME:20260609T214539Z UID:indico-contribution-1-5@indico.koza.if.uj.edu.pl DESCRIPTION:Speakers: Hong Joo Kim (Kyungpook National University)\nH.J. Kim1\, Gul Rooh2\, Q.V. Phan1\, Arshad Khan1\, Sang Jun Kang3 \, Jakrapon g Kaewkhao4\n1Department of Physics\, Kyungpook National University\, Dae gu 702-701\, Korea\nEmail: hongjoo@knu.ac.kr\n2 Department of Physics\, Ab dul Wali Khan University\, Mardan\,23200\, Pakistan\n3 College of Liberal Arts\, Semyung University\, Jechon 27136\, Korea\n4 Center of Excellence i n Glass Technology and Materials Science (CEGM)\, Nakhon Pathom Rajabhat U niversity\, Nakhon Pathom 73000\, Thailand\n\nInorganic scintillators are widely used materials for the detection of different radiations in the fie ld of radiation detection\, medical imaging\, security inspection\, nuclea r and high-energy-physics\, and well-logging for oil and gas exploration. In recent years\, more attention is devoted in the discovery of new scinti llators characterized by excellent energy resolution and high light yield under γ-ray excitation\, fast decay time\, high density and high Z-number . Most of the popular scintillators shown excellent scintillation properti es\, however one cannot find a single scintillator among these materials w hich can fulfill the demands of the mentioned applications. Therefore\, th e quest for an ideal scintillator is still going on. \nIn this presentati on I will present our work on the new single crystal growth of cerium or e uropium doped Tl based crystal as well as Tl based intrinsic scintillators grown by using Bridgman technique. Due to the high Z-number and density of Tl ion most of our grown scintillator shows high effective Z-number an d density. Therefore\, these scintillators are supposed to be ideal for th e detection of x- and gamma-rays. Since the f-d transition is favored fo r Ce or Eu doped scintillator\, we expect fast decay time and high light o utput. Under 661 keV γ-rays excitation\, the light outputs of the investi gated samples are found to be < 60\,000 photons/MeV for various Ce or Eu c oncentrations with different materials. \nSince they contains high Z mater ial\, Tl\, they can be used to efficiently detect gamma rays or x-rays in many applications such as radiation detection and medical imaging such as computerized tomography (CT)\, positron emission tomography (PET)\, single photon emission computed tomography (SPECT). Also Li and Gd contained c rystals could be promising candidates for neutron detection.\n\nReference \n1. H.J. Kim\, G. Rooh\, H. Park\, S. Kim\, J. Lumin. 164\, 86 (2015).\n 2. H.J. Kim\, G. Rooh\, H. Park\, S. Kim\, IEEE Trans. Nucl. Sci. 57\, 43 9 (2016).\n3. H.J. Kim\, G. Rooh\, S. Kim\, J. Lumin. 186\, 219 (2017)\n4 . H.J. Kim et al.\, J. Lumin.\, 186 (2017) 219–222.\n5. H.J. Kim et al.\, NIMA.\, 849 (2017) 72–75.\n6. G. Rooh et al.\, Opt. Mater.\, 73 (2017) 523.\n7. H.J. Kim et al.\, Opt. Mater.\, 82 (2018) 8\n8. Q.V. Phan et al.\, JAC\, 766 (2018) 326\n\nhttps://indico.koza.if.uj.edu.pl/eve nt/1/contributions/5/ LOCATION:Collegium Maius URL:https://indico.koza.if.uj.edu.pl/event/1/contributions/5/ END:VEVENT BEGIN:VEVENT SUMMARY:A search for massless dark photons in positronium decays DTSTART;VALUE=DATE-TIME:20190628T093000Z DTEND;VALUE=DATE-TIME:20190628T095500Z DTSTAMP;VALUE=DATE-TIME:20260609T214539Z UID:indico-contribution-1-70@indico.koza.if.uj.edu.pl DESCRIPTION:Speakers: Paolo Crivelli (ETH Zurich (CH))\nThe existence of d ark matter has been established by different cosmological observations\, h owever its origin is still unknown. Many candidates have been proposed amo ng which the most popular ones are probably Weakly Interacting Massive Par ticles (WIMPs). Despite intensive searches in accelerators and in direct d etection experiments\, WIMPs have not yet been observed. An interesting a lternative\, are hidden sectors. This class of models includes the possibi lity of a new force mediated by a massive vector gauge U(1) boson\, called dark photon.\nInterestingly\, if the new U(1) gauge symmetry is unbroken\ , the massless dark photon can be searched for in positronium decays. Here we present the latest results of such an experiment.\n\nhttps://indico.ko za.if.uj.edu.pl/event/1/contributions/70/ LOCATION:Collegium Maius URL:https://indico.koza.if.uj.edu.pl/event/1/contributions/70/ END:VEVENT BEGIN:VEVENT SUMMARY:Mesons in nuclei: review and perspectives DTSTART;VALUE=DATE-TIME:20190624T114500Z DTEND;VALUE=DATE-TIME:20190624T122000Z DTSTAMP;VALUE=DATE-TIME:20260609T214539Z UID:indico-contribution-1-94@indico.koza.if.uj.edu.pl DESCRIPTION:Speakers: Kenta Itahashi (RIKEN)\nIn-medium properties of meso ns in nuclei contains rich information of the strong interation in-between \, which helps understanding low-energy non-perturbative region of the QCD . We will review the experimental and theoretical activities and discuss t he perspectives in the near future including possibilities in new faciliti es.\n\nhttps://indico.koza.if.uj.edu.pl/event/1/contributions/94/ LOCATION:Collegium Maius URL:https://indico.koza.if.uj.edu.pl/event/1/contributions/94/ END:VEVENT BEGIN:VEVENT SUMMARY:The role of positronium decoherence in positron annihilation in ma tter DTSTART;VALUE=DATE-TIME:20190625T073000Z DTEND;VALUE=DATE-TIME:20190625T075000Z DTSTAMP;VALUE=DATE-TIME:20260609T214539Z UID:indico-contribution-1-73@indico.koza.if.uj.edu.pl DESCRIPTION:Speakers: Marek Pietrow (Institute of Physics\, UMCS Universit y\, Lublin\, Poland.)\nA small difference between the energies of the para -positronium (p-Ps) and ortho-positronium (o-Ps) states suggests the possi bility of the superposition of p-Ps and o-Ps during the formation of posit ronium (Ps) from pre-Ps. It is shown that such a superposition decoheres i n the basis of p-Ps and o-Ps. The decoherence time scale estimated here mo tivates a correction in the precise analysis of the positron annihilation lifetime spectra.\n\nhttps://indico.koza.if.uj.edu.pl/event/1/contribution s/73/ LOCATION:Collegium Maius URL:https://indico.koza.if.uj.edu.pl/event/1/contributions/73/ END:VEVENT BEGIN:VEVENT SUMMARY:Precision tests for T-symmetry violation in Positronium decay usin g the J-PET detector DTSTART;VALUE=DATE-TIME:20190626T100500Z DTEND;VALUE=DATE-TIME:20190626T102000Z DTSTAMP;VALUE=DATE-TIME:20260609T214539Z UID:indico-contribution-1-160@indico.koza.if.uj.edu.pl DESCRIPTION:Speakers: Juhi Raj (Jagiellonian University)\nTime reversal sy mmetry (T ) violation has been one of the most intriguing aspects of the t ests on discrete symmetries. So far\, T-violation has not been observed in purely leptonic systems [1\, 2\, 3]. According to the standard model pred ictions\, photon-photon interaction or weak interaction can mimic the symm etry violation at the level of 10^{−9} (photon-photon interaction) and 1 0^{−13} (weak interactions) respectively\, posing as a physical restrict ion to these tests [4-6]. \nThe Jagiellonian Positron Emission Tomograph ( J-PET) developed at Jagiellonian University in Krakow\, Poland\, is one of its kind\, based on organic scintillators [7\, 8\, 10]. J-PET is an axial ly symmetric and high acceptance scanner that can be used as a multi-purpo se detector system. It is well suited to pursue tests of discrete symmetri es in decays of positronium in addition to medical imaging [9\, 10\, 12\, 14]. J-PET enables the measurement of the momentum vector ki and the polar ization vector \\epsilon_{j} of annihilation photons [11\, 13\, 14]. Measu rement of polarization of annihilation photons is a unique feature of the J-PET detector which allows the study of T-violation by determining the ex pectation values of the time reversal symmetry odd operator [14]\,\n \n(\ \epsilon_{j} \\cdot k_{i})\, (for j ≠ i) [14]. \n\nJ-PET collaboration aims to improve the sensitivity for the tests of the time reversal symmet ry with respect to the previous experiments in the leptonic sector beyond the present established level of 10^{-3} [2]. At the turn of 2017 and 2018 \, a three month data-taking campaign with the positronium produced in the porous polymer was conducted. The results of the analyzed data will be pr esented.\n\nReferences\n[1] V.A. Kostelecky and N. Russell\, January 2018 update to Reviews of Modern Physics 83\, 11(2011)\n[2] T. Yamazaki\, T. Na mba\, S. Asai\, T. Kobayashi\, Phys. Rev. Lett. 104\, 083401 (2010)\n[3] P .A. Vetter\, S.J. Freedman\, Phys. Rev. Lett. 91\, 263401 (2003)\n[4] M. S . Sozzi\, Discrete Symmetries and CP Violation. From Experiment to Theory\ ,\n Oxford University Press (2008)\n[5] W. Bernreyther et. al.\, Z. P hys. C 41\, 143 (1988)\n[6] B. K. Arbic et. al.\, Phys. Rev. A 37\, 3189 ( 1988)\n[7] P. Moskal et al.\, Phys. Med. Biol. 61 (2016)\n[8] P. Moskal et al.\, Nucl. Instr. and Meth. A 764 (2014) 317-321\n[9] D. Kamiska et al. Eur. Phys. J. C 76\, 445 (2016)\n[10] P. Moskal et al.\, Phys. Med. Biol. 64 (2019) 055017\n[11] B. C. Hiesmayr and P. Moskal\, Scientific Reports 7 \, 15349 (2017)\n[12] A. Gajos et al.\, Nucl. Instrum. Methods A 819\, 54 (2016)\n[13] P. Moskal et al.\, Eur. Phys. J. C 78\, 970 (2018) \n[14] P. Moskal et al.\, Acta Phys. Polon. B 47\, 509 (2016)\n\nhttps://indico.koza .if.uj.edu.pl/event/1/contributions/160/ LOCATION:Collegium Maius URL:https://indico.koza.if.uj.edu.pl/event/1/contributions/160/ END:VEVENT BEGIN:VEVENT SUMMARY:Nuclear shapes and symmetries seen through measurement of short li fetimes DTSTART;VALUE=DATE-TIME:20190625T100000Z DTEND;VALUE=DATE-TIME:20190625T102000Z DTSTAMP;VALUE=DATE-TIME:20260609T214539Z UID:indico-contribution-1-3@indico.koza.if.uj.edu.pl DESCRIPTION:Speakers: Pragya Das (Indian Institute of Technology Bombay)\n Nuclear shapes like triaxial\, octopole and tetrahedral - with underlying symmetries and associated conserved quantities - have drawn considerable i nterest during recent years. Chiral symmetry (handedness) in triaxial nuc lei manifests itself in two degenerate sets of energy levels. Their reduce d transition probabilities B(M1) and B(E2) are the critical observables [1 ]\, obtainable from the measured lifetimes. Doppler shift attenuation met hod (DSAM) is a modern and sophisticated technique to measure lifetimes ac curately in picoseconds. Signature splitting and signature inversion are yet another phenomena pointing towards different nuclear shapes. Recently we investigated 126I [2\, 3] - a triaxial nucleus with changing shape and axis of rotation when excited to high angular momentum states - exhibitin g both signature splitting and inversion\, and possibly chirality.\nWe pro duced 126I through the reaction 124Sn(7Li\, 5n)126I using 7Li beam at ener gy 50 MeV from the Pelletron accelerator at Inter University Accelerator C enter\, New Delhi\, India. The experimental set-up consisted of 15 Compto n suppressed HPGe clover detectors installed in INGA set-up [4]. We obtai ned lifetimes of many states [3] - ranging from 1.2 to 2.7 ps - by observi ng lineshape profile of the decaying -transition and peak fitting using the software by J. C. Wells [5]. A typical gated spectrum in the figure presents the right- and left-side Doppler shifted profiles of a -transi tion in the forward (32) and backward (148) detectors\, respectively \, compared to the Gaussian peak at the 90 detector.\nWe reported signa ture splitting and inversion in the negative parity yrast band of 126I [2] . Lifetime measurement using DSAM enabled us to establish changing triaxi al shapes at the inversion point\, i.e.\, at low and high spins [3]. We o riginally proposed chiral bands in 126I [2] based on roughly degenerate en ergy states\, which is currently being investigated through lifetime measu rement using DSAM. The initial B(E2) values 0.11\, 0.04 and 0.05 (e2b2) fo r 17+\, 18+ and 19+\, respectively\, indicate possible chiral nature [1].\ nIn our ongoing work\, we aim to study chirality in 128La - produced throu gh 114Cd(19F\, 5n)128La - by measuring lifetimes (DSAM) of the proposed ch iral bands [6] by applying a stringent test on B(E2) [1].\n\n[1] I. Hamamo to\, Int. J. Mod. Phys. E 20\, 373 (2011).\n[2] B. A. Kanagalekar et al.\, Phys. Rev. C 88\, 054306 (2013).\n[3] H. K. Singh et al.\, submitted to P hys. Rev. C.\n[4] S. Muralithar et al.\, J. Phys.: Conf. Ser. 312 052015 ( 2011).\n[5] J. C. wells and N. R. Johnson\, ORNL Report\, 6689\, 44 (1991) .\n[6] K. Y. Ma et al.\, Phys. Rev. C 85\, 037301 (2012).\n\nhttps://indic o.koza.if.uj.edu.pl/event/1/contributions/3/ LOCATION:Collegium Maius URL:https://indico.koza.if.uj.edu.pl/event/1/contributions/3/ END:VEVENT BEGIN:VEVENT SUMMARY:Antikaon-nucleon/nuclei interactions at low-energy by AMADEUS DTSTART;VALUE=DATE-TIME:20190625T154500Z DTEND;VALUE=DATE-TIME:20190625T160500Z DTSTAMP;VALUE=DATE-TIME:20260609T214539Z UID:indico-contribution-1-68@indico.koza.if.uj.edu.pl DESCRIPTION:Speakers: Raffaele Del Grande (LNF-INFN)\nThe AMADEUS collabor ation aims to provide information on the $\\bar{\\mathrm{K}}$-nucleon/nucl ei interaction in the low-energy regime. The investigation of the antikaon dynamics in nuclear medium is fundamental for the understanding of the no n-perturbative QCD in the strangeness sector\, with implications going fro m nuclear physics to astrophysics. Hyperon-nucleon/nuclei (YN) and hyperon -pion (Y$\\pi$) correlated production in K$^-$ nuclear absorption on H\, $ ^4$He\, $^9$Be and $^{12}$C nuclei are analysed with the aim to explore th e possible existence of kaonic bound states in nuclei and the properties o f hyperon resonances in nuclear environment. AMADEUS takes advantage of th e DA$\\Phi$NE collider\, which provides a unique source of monochromatic l ow-momentum kaons ($p_K$ ~ 127 MeV/c)\, and exploits the KLOE detector as active target\, providing large acceptance and resolution for the data.\n\ nhttps://indico.koza.if.uj.edu.pl/event/1/contributions/68/ LOCATION:Collegium Maius URL:https://indico.koza.if.uj.edu.pl/event/1/contributions/68/ END:VEVENT BEGIN:VEVENT SUMMARY:Electric Dipole Moments – static (EDM) and oscillating (oEDM) DTSTART;VALUE=DATE-TIME:20190626T070500Z DTEND;VALUE=DATE-TIME:20190626T073000Z DTSTAMP;VALUE=DATE-TIME:20260609T214539Z UID:indico-contribution-1-69@indico.koza.if.uj.edu.pl DESCRIPTION:Speakers: Hans Ströher (Forschungszentrum Jülich)\nElectric Dipole Moment (EDM) searches of charged particles in storage rings is a no vel approach to look for additional microscopic time-reversal (T)\, parity (P) and charge-parity (CP) violation\, the latter being required to help explaining the apparent matter-antimatter asymmetry in the Universe.\nUp t o now EDM experiments mainly focused on neutral particles. The idea to exp loit charged particles to search for EDM is relatively new\, although ther e have been results for muons from the (g-2) measurements at Brookhave n. EDMs of charged particles such as protons or deuterons can be searched for in storage rings by measuring the influence of electric fields on the polarization vector\, which is oriented parallel to the EDM. Assuming tech nically realistic values for the electric field strength\, the number of p articles and the polarization lifetime\, a statistical error of 10-29 e cm per year of running can be obtained. The challenge is to identify and red uce all systematic uncertainties. This precision can be reached if the pre cession in the accelerator plane due to the magnetic moment is suppressed (frozen spin method)\, which can be achieved by an appropriate combination of electric and magnetic fields and momentum. For particles with positive magnetic anomaly (e.g. protons)\, only electric fields are needed at a pr oton momentum of 0.7007 GeV/c. Using only electric fields allows for a sim ultaneous storage of clockwise and counterclockwise circulating beams\, wh ich will be the most important tool to mitigate systematic effects. This w ill be an important advantage compared to other EDM experiments\, where on e either has to take different consecutive runs with reversed fields (e.g. neutron EDM) or the particles are spatially separated (e.g. Hg-EDM).\nThe JEDI (Jülich Electric Dipole Investigations) collaboration focuses the e stablishment of key-technologies and on first exploratory measurements\, u sing the pure magnetic Cooler Synchrotron COSY at Forschungszentrum Jülic h (Germany). With its ability to store and cool polarized proton and deute ron beams in the appropriate energy range\, COSY is the only facility worl dwide where such investigations can be conducted. In 2017\, the CPEDM (cha rged particle EDM) collaboration\, mainly comprising scientist from CERN a nd the JEDI collaboration was established\, in order to investigate the po ssibility to design and construct a 500 m circumference storage ring for E DM measurements at CERN. After intense discussions within CPEDM as well as with accelerator experts worldwide\, it has become clear that the goal of 10-29 e cm cannot be achieved in one giant leap\; instead\, a prototype r ing must be devised as an inevitable intermediate step. It will serve to a nswer fundamental questions\, to demonstrate key technologies and it can b e used to perform a direct EDM measurement competitive to the current neut ron EDM sensitivity. \nThe talk will be about the status of the CPEDM proj ect\, including an outlook towards oscillating EDMs due to axion-like part icles\, a candidate for Dark Matter\, which can also be search for in stor age rings.\n\nhttps://indico.koza.if.uj.edu.pl/event/1/contributions/69/ LOCATION:Collegium Maius URL:https://indico.koza.if.uj.edu.pl/event/1/contributions/69/ END:VEVENT BEGIN:VEVENT SUMMARY:The EXPLORER Project: Total-Body Positron Emission Tomography DTSTART;VALUE=DATE-TIME:20190627T063000Z DTEND;VALUE=DATE-TIME:20190627T070500Z DTSTAMP;VALUE=DATE-TIME:20260609T214539Z UID:indico-contribution-1-143@indico.koza.if.uj.edu.pl DESCRIPTION:Speakers: Simon Cherry (University of California\, Davis)\nPos itron emission tomography (PET) scanners generate in vivo images of radiol abeled pharmaceutical distribution and kinetics\, providing a powerful win dow into metabolism and physiology. However\, current PET scanners for hum ans cover only 20-25 cm of the body axially at any one time\, which leads to long scan times\, relatively high radiation dose\, poor signal quality and largely limits their ability to kinetically model radiotracer distribu tion to single organs of the body. The goal of the EXPLORER project\, whi ch was first conceived of in 2005\, was to develop the world’s first tot al-body PET/CT scanner that covers the entire body at once and offers the promise of a step-change in molecular imaging research and clinical practi ce.\n \nConstruction of the EXPLORER scanner\, consisting of over 500\,000 individual detector elements and more than 50\,000 photosensors and chann els of electronics\, was recently completed. The scanner has a total axi al field of view of 194 cm\, and a bore diameter of 76 cm with a reconstru cted spatial resolution better than 3 mm\, a time-of-flight resolution of 430 psecs and also incorporates a high-performance CT scanner (80 detector -row\, 160 slice) for anatomic registration. \n \nFirst human applications of the scanner have already demonstrated the ability to acquire extremely high-quality images with standard acquisition protocols\, the ability to image very fast (tomographic images of the entire human body in as little as 1 second)\, and the ability to acquire diagnostic quality images with l ess than 1/10th the standard radiation dose. The first total-body dynamic studies in which the distribution of a radiolabeled compound is followed in every tissue and organ of the body from the time of injection also will be presented. The world’s first EXPLORER scanner has been installed at UC Davis where it will be used both for biomedical research and clinical studies.\n\nhttps://indico.koza.if.uj.edu.pl/event/1/contributions/143/ LOCATION:Collegium Maius URL:https://indico.koza.if.uj.edu.pl/event/1/contributions/143/ END:VEVENT BEGIN:VEVENT SUMMARY:Determining the energy released by electron capture into different atomic subshells for $^{110m}$Ag isomer in the dependence on the ionizati on degree and assumed electronic configuration DTSTART;VALUE=DATE-TIME:20190625T113000Z DTEND;VALUE=DATE-TIME:20190625T130000Z DTSTAMP;VALUE=DATE-TIME:20260609T214539Z UID:indico-contribution-1-59@indico.koza.if.uj.edu.pl DESCRIPTION:Speakers: Katarzyna Słabkowska (Nicolaus Copernicus Universit y in Toruń\, 87-100 Toruń\, Poland)\nThe proposed studies focus on a pe rforming the comprehensive analysis of the optimal conditions for a detail ed knowledge of the nuclear excitation by electron capture (NEEC) process for selected nuclear isomers (i.e. metastable exited states of atomic nucl ei) of a few elements. The part of these research focuses on the especiall y interesting and important case of NEEC process for the $^{110m}$Ag isome r ($T_{1/2}$ ~ 249.83 d).\n\nWithin the framework of our previous studies for the $^{93m}$Mo [1\,2] and $^{242m}$Am [3] isomers we have determined\, using the multiconfiguration Dirac-Fock (MCDF) method [4-9]\, the depende nce of the energy released by electron capture into different L\, M and N subshells (for $^{93m}$Mo) and O\, P and Q subshells (for $^{242m}$Am) on the ionization degree (and assumed electronic ground state configuration). Here it is worth noting that the energy released by the electron capture process to the system with q ionized degree can be treated as binding ener gy of the caught electron for the (q-1) ionized system. In connection with this\, we have performed for the $^{110m}$Ag isomer the detailed MCDF cal culations concerning the dependence of the energy released by electron cap ture into different subshells for N\, O and P shell of $^{110m}$Ag isomer on the degree of ionization and electronic configuration.\n\nThese researc h have a basic research character\, because they are concentrated on a sys tematic study directed toward greater knowledge and understanding of the v arious aspects of a new physical phenomena\, i.e. the NEEC process. It is worth noting that these studies are starting point for applied research\, which purpose will be to allow the controlled release of energy stored in the nuclear isomer of selected elements.\n\nACKNOWLEDGMENTS \nThis work is supported by the Polish National Science Center under Grant number 2017/2 5/B/ST2/00901. \n\nREFERENCES\n[1] M. Polasik\, K. Słabkowska\, J.J. Car roll\, C.J. Chiara\, Ł. Syrocki\, E. Węder\, and J. Rzadkiewicz\, Phys. Rev. C 95 034312 (2017).\n[2] C. J. Chiara\, J. J. Carroll\, M. P. Carpen ter\, J. P. Greene\, D. J. Hartley\, R. V. F. Janssens\, G. J. Lane\, J. C . Marsh\, D. A. Matters\, M. Polasik\, J. Rzadkiewicz\, D. Seweryniak\, S. Zhu\, S. Bottoni\, A. B. Hayes & S. A. Karamian\, Nature 554 216–218 (2 018).\n[3] J. Rzadkiewicz\, M. Polasik\, K. Słabkowska\, Ł. Syrocki\ , E. Węder\, J.J. Carroll\, and C.J. Chiara\, Phys. Rev. C 99\, 044309 (2 019).\n[4] I.P. Grant\, Int. J. Quantum Chem. 25 23 (1984).\n[5] K.G. Dy all\, I.P. Grant\, C.T. Johonson\, F.A. Parpia\, and E.P. Plummer\, Comput . Phys. Commun. 55 425 (1989).\n[6] M. Polasik\, Phys. Rev. A 39 616 (198 9)\; Phys. Rev. 41 3689 (1990)\; Phys. Rev. 52 227 (1995)\; Phys. Rev. 58 1840 (1998).\n[7] F.A. Parpia\, C.F. Fischer\, and I.P. Grant\, Comput. P hys. Commun. 94 249 (1996).\n[8] P. Jönsson\, X. He\, C.F. Fischer\, and I.P. Grant\, Comput. Phys. Commun. 177 597 (2007).\n[9] C. F. Fischer an d G. Gaigalas\, Phys. Rev. A 85 042501 (2012).\n\nhttps://indico.koza.if.u j.edu.pl/event/1/contributions/59/ LOCATION:Collegium Maius URL:https://indico.koza.if.uj.edu.pl/event/1/contributions/59/ END:VEVENT BEGIN:VEVENT SUMMARY:Opening by prof. Ewa Gudowska-Nowak\, Dean of the Faculty of Physi cs\, Astronomy and Applied Computer Science and prof. Paweł Moskal\, conf erence chair DTSTART;VALUE=DATE-TIME:20190624T063000Z DTEND;VALUE=DATE-TIME:20190624T070000Z DTSTAMP;VALUE=DATE-TIME:20260609T214539Z UID:indico-contribution-1-119@indico.koza.if.uj.edu.pl DESCRIPTION:https://indico.koza.if.uj.edu.pl/event/1/contributions/119/ LOCATION:Collegium Maius URL:https://indico.koza.if.uj.edu.pl/event/1/contributions/119/ END:VEVENT BEGIN:VEVENT SUMMARY:Possible LENR observation due to dineutron formation DTSTART;VALUE=DATE-TIME:20190625T090000Z DTEND;VALUE=DATE-TIME:20190625T092000Z DTSTAMP;VALUE=DATE-TIME:20260609T214539Z UID:indico-contribution-1-7@indico.koza.if.uj.edu.pl DESCRIPTION:Speakers: Ihor Kadenko (International Nuclear Safety Center of Taras Shevchenko National University of Kyiv)\nLow energy nuclear reactio ns (LENR) are considered based on dineutron formation in the outgoing chan nel of a neutron induced nuclear reaction on 159Tb. Due to the dineutron presence and subsequent decay\, either it is itself\, or it`s products may react with 158Tb nuclei to transform them directly or sequently into 160T b. Accumulation of 160Tb is assumed from purely strong or weak-strong pro cesses via nuclear reactions at room temperature. Some theoretical estima tions\, experimental observations and measurement results of terbium sampl e radioactivity are presented and discussed.\n\nhttps://indico.koza.if.uj. edu.pl/event/1/contributions/7/ LOCATION:Collegium Maius URL:https://indico.koza.if.uj.edu.pl/event/1/contributions/7/ END:VEVENT BEGIN:VEVENT SUMMARY:Inexpensive scintillation spectrometer systems on the base SiPM li ght detectors DTSTART;VALUE=DATE-TIME:20190625T113000Z DTEND;VALUE=DATE-TIME:20190625T130000Z DTSTAMP;VALUE=DATE-TIME:20260609T214539Z UID:indico-contribution-1-99@indico.koza.if.uj.edu.pl DESCRIPTION:Speakers: Oleh Trofimiuk (TSNUK - Taras Shevchenko National Un iversity of Kyiv)\nThe work is devoted to the development of inexpensive s cintillation spectrometer systems on the base SiPM light detectors for var ious radiation applications (compact cheap mobile spectrometers of gamma\, beta and alpha particles\, monitoring of accelerator beams - Beam Loss Mo nitors). CsI(Tl) was used as scintillation crystals. Hulls was built using 3D printing. Detector electronics (with 512 channel multi-channel analyze r with Ethernet or Wi-Fi connections) costed no more than 40-50 dollars.\n \nhttps://indico.koza.if.uj.edu.pl/event/1/contributions/99/ LOCATION:Collegium Maius URL:https://indico.koza.if.uj.edu.pl/event/1/contributions/99/ END:VEVENT BEGIN:VEVENT SUMMARY:GATE for medical physics\, therapy and imaging. A new Compton-Cam era module DTSTART;VALUE=DATE-TIME:20190627T131500Z DTEND;VALUE=DATE-TIME:20190627T133500Z DTSTAMP;VALUE=DATE-TIME:20260609T214539Z UID:indico-contribution-1-6@indico.koza.if.uj.edu.pl DESCRIPTION:Speakers: Ane Etxebeste (Université de Lyon\, CREATIS\, CNRS UMR5220\, Inserm U1044\, INSA-Lyon\, Université Lyon 1\, Centre Léon Bé rard\, France.)\nGATE is a Geant4 application dedicated to medical physics applications. This open-source software is developed by the international OpenGATE collaboration initially [1] for nuclear medicine (SPECT\, PET). Since the release V6 [2]\, GATE was extended to a broader range of simulat ions in the field of medical physics\, in particular for dosimetry applica tions [3]. This unique platform allows users to conveniently share code of Geant4 simulations while also allowing simple simulation scripting via ma cro files. GATE has been used to perform a wide range of radiation therapy dosimetry simulations\, including external photon therapy\, hadrontherapy (proton\, carbon\, helium)\, internal radionuclide therapy\, and various imaging applications: not only PET\, SPECT and CT\, but also proton-CT\, p rompt-Gamma imaging or Compton-Camera. \n\nRecently\, a new extension of G ATE has been proposed to perform simulations of Compton cameras. The devel oped module is designed so that the interaction information of the particl es in the specified detector volumes is stored and digitized to simulate t heir response. Several digitization processors have been implemented to re produce the performance of the most commonly employed detectors such as st rip detectors\, pixelated and monolithic scintillator crystals. Additional tools have been included to facilitate the access to ground-truth informa tion with the aim of recovering the ideal Compton kinematics and character izing the possible sources of degradation in an experimental device. The m odule has been successfully validated against experimental data taken with a Compton Camera prototype based on LaBr3 continuous crystals coupled to SiPMs\, built at IFIC-Valencia. On the other hand\, the developed tools ha ve proven to be helpful to identify and reduce the different sources of de gradation found in the acquired data. The versatility of the module has be en proven through a preliminary simulation study of the comparison between the performance of two different prototypes.\n \nDuring the presentation\ , a short overview of GATE capabilities will be given\, followed by a desc ription of the new Compton Camera module\, that will be available in the n ext GATE release. \n\nReferences\n[1] Jan S.\, … Morel C. GATE: a simula tion toolkit for PET and SPECT. Phys Med Biol. Oct 7\;49(19):4543-61. 2004 \n[2] Jan S.\, … Buvat I. GATE V6: a major enhancement of the GATE simu lation platform enabling modelling of CT and radiotherapy. Phys Med Biol. 21\; 56(4):881-901. 2011\n[3] Sarrut D. et al. “A review of the use and potential of the GATE Monte Carlo simulation code for radiation therapy an d dosimetry applications.” Med Phys\, 41(6):064301. Jun 2014.\n\nhttps:/ /indico.koza.if.uj.edu.pl/event/1/contributions/6/ LOCATION:Collegium Maius URL:https://indico.koza.if.uj.edu.pl/event/1/contributions/6/ END:VEVENT BEGIN:VEVENT SUMMARY:Positron scattering and annihilation in organic molecules DTSTART;VALUE=DATE-TIME:20190628T074500Z DTEND;VALUE=DATE-TIME:20190628T081000Z DTSTAMP;VALUE=DATE-TIME:20260609T214539Z UID:indico-contribution-1-77@indico.koza.if.uj.edu.pl DESCRIPTION:Speakers: Grzegorz Karwasz (Nicolaus Copernicus Univeristy)\nL inking between positron scattering in the gas phase (i.e. cross sections) and positron annihilation in the liquid phase (i.e. positron lifetimes) r emain still poorly understood. In organic molecules\, like hydrocarbons\, a strong enhancement of the annihilation rate in the gas phase in positron traps was observed already several years ago but this has not been yet “translated” into cross sections [1]. \nProblems of incongruence rem ain both on experiments and the theory. Some recent experiments in gas pha se suffered from a poor angular resolution at low energies\, therefore cro ss sections are underestimated\, see the discussion in [2]. Another source of errors is wrong energy scaling\, see [3] for the discussion. \nIn expe rimental studies of positron lifetimes in liquids the main uncertainty is the branching ration between ortho and para-positronium: without assuming a correct branching ratio the numerical analysis may produce stray results . A recent theory [4] put some constraints on the analysis of lifetime spe ctra\, enabling to re-evaluate previous experimental data [5]. \nFrom the theoretical side\, it is difficult to account for the strong correlation b etween the impinging positron and the molecular electrons. Recently\, we h ave introduced an empirical scaling factor in order to correct for these s hortcomings and applied it successfully for positron scattering in benzene [6]. \nWe present a combined comparison of low-energy cross sections in t he gas phase (a review of different experiments and the present theory) a nd re-analyzed positron lifetimes in small organic molecules: acetylene\, methanol\, benzene and cyclohexane. An agreement in the gas phase is very promising\, while lifetimes show to be strongly influenced by the presence of dissolved oxygen and show significant temperature dependences. A discu ssion will be given. \n\nThis work is supported by the grant 2014/15/D/ST2 /02358 of the Narodowe Centrum Nauki (National Science Center Poland) and by computer grants from the computer centers WCSS (Wroclawskie Centrum Sie ciowo- Superkomputerowe\, Politechnika Wroclawska) and TASK (Trójmiejska Akademicka Sieć Komputerowa\, Gdańsk).\n\nReferences:\n[1] G.F. Gribakin \, J.A. Young\, and C.M. Surko\, Rev. Mod. Phys. 82 (2010) 2557\n[2] G.P. Karwasz\, A. Karbowski\, Z. Idziaszek\, R. S. Brusa\, Nucl. Instr. and Met h. B\, 266/3 (2008) 471\n[3] G. P. Karwasz\, R. S. Brusa\, and D. Pliszka\ , IOP Publishing\, Journal of Physics: Conference Series\,\n199 (2010) 012 019 \n[4] G. Marlotti Tanzi\, F. Castelli\, and G. Consolati\, Phys. Rev. Lett. 116 (2016) 033401\n[5] A. Karbowski\, K. Fedus\, K. Służewski\, J . Bruzdowska\, and G. Karwasz\, Acta Phys. Pol. A 132\n (2017)1466.\n[6] J . Franz and M. Franz Eur. Phys. J. D\, submitted (2019).\n\nhttps://indico .koza.if.uj.edu.pl/event/1/contributions/77/ LOCATION:Collegium Maius URL:https://indico.koza.if.uj.edu.pl/event/1/contributions/77/ END:VEVENT BEGIN:VEVENT SUMMARY:Measurement of the CKM angle $\\gamma$ at Belle II DTSTART;VALUE=DATE-TIME:20190626T103500Z DTEND;VALUE=DATE-TIME:20190626T105000Z DTSTAMP;VALUE=DATE-TIME:20260609T214539Z UID:indico-contribution-1-15@indico.koza.if.uj.edu.pl DESCRIPTION:Speakers: Resmi PK (IIT Madras)\nThe CKM angle $\\gamma$ is th e least well known of the angles of the unitarity triangle and the only on e that is accessible with tree-level decays in a theoretically clean way. The key method to measure $\\gamma$ is through the interference between $B ^+\\to D^0 K^+$ and $B^+ \\to \\bar D^0 K^+$ decays which occurs if the fi nal state of the charm-meson decay is accessible to both the $D^0$ and $\\ bar D^0$ mesons. The Belle II experiment at the SuperKEKB energy-asymmetri c $e^+ e^-$ collider is a substantial upgrade of the B factory facility at the Japanese KEK laboratory. The design luminosity of the machine is $8\\ times 10^{35}$ cm$^{-2}$s$^{-1}$ and the Belle II experiment aims to recor d 50 ab$^{-1}$ of data\, a factor of 50 more than its predecessor. From Fe bruary to July 2018\, the machine has completed a commissioning run\, achi eved a peak luminosity of $5.5\\times 10^{33}$ cm$^{-2}$s$^{-1}$\, and Bel le II has recorded a data sample of about 0.5 fb$^{-1}$. Main operation of SuperKEKB has started in March 2019. To achieve the best sensitivity\, a large variety of D and B decay modes is required\, which is possible at Be lle II experiment as almost any final state can be reconstructed including those with photons. With the ultimate Belle II data sample of 50 ab$^-1$\ , a determination of $\\gamma$ with a precision of 1 degree or better is f oreseen. This talk will explain the details of the planned measurement at Belle II and include results related to these measurements obtained with t he data already collected.\n\nhttps://indico.koza.if.uj.edu.pl/event/1/con tributions/15/ LOCATION:Collegium Maius URL:https://indico.koza.if.uj.edu.pl/event/1/contributions/15/ END:VEVENT BEGIN:VEVENT SUMMARY:The SiFi-CC project - towards online monitoring of proton therapy DTSTART;VALUE=DATE-TIME:20190624T100000Z DTEND;VALUE=DATE-TIME:20190624T101500Z DTSTAMP;VALUE=DATE-TIME:20260609T214539Z UID:indico-contribution-1-10@indico.koza.if.uj.edu.pl DESCRIPTION:Speakers: Aleksandra Wrońska (Jagiellonian University in Krak ów)\nOver the last five years\, the number of proton therapy centres in t he World has doubled. In Kraków\, Poland a new proton therapy facility Cy clotron Centre Bronowice (CCB) has been launched in 2013. The accuracy of proton therapy could be improved if on-line monitoring of deposited dose b ecame a standard in clinical practice. Different approaches for beam range verification (one-dimensional) or monitoring of deposited dose distributi on (two- or three-dimensional) are being developed\, exploiting different types of secondary radiation. One of them is prompt-gamma imaging\, for wh ich the detectors of the Compton-camera type featuring a three-dimensional reconstruction allow to obtain the richest information.\n\nPhysicists fro m the Jagiellonian University and the RWTH Aachen University have establis hed a collaboration to develop a method for on-line monitoring of dose dis tribution deposited in proton therapy exploiting prompt-gamma radiation. I n the first project called $\\gamma$CCB the relevant differential yields f or gamma emission were measured at HIT Heidelberg and CCB Kraków. The new project aims at the development of a setup for prompt-gamma imaging\, wh ich will take advantage of the latest advances in scintillation detectors - fibres made from modern\, heavy scintillators read out by SiPMs\, hence the project name SiFi-CC (SiPMs and scintillating Fibre-based Compton Came ra). Key features of detector design and the simulated performance will be discussed.\n\nhttps://indico.koza.if.uj.edu.pl/event/1/contributions/10/ LOCATION:Collegium Maius URL:https://indico.koza.if.uj.edu.pl/event/1/contributions/10/ END:VEVENT BEGIN:VEVENT SUMMARY:On the neutron decay DTSTART;VALUE=DATE-TIME:20190625T084000Z DTEND;VALUE=DATE-TIME:20190625T090000Z DTSTAMP;VALUE=DATE-TIME:20260609T214539Z UID:indico-contribution-1-12@indico.koza.if.uj.edu.pl DESCRIPTION:Speakers: Francesco Giacosa (Institute of Physics\, Kielce Uni versity)\nWe present the puzzle of the neutron lifetime\, according to whi ch different measurements (bottle and beam methods) deliver different life times. In particular\, the bottle method delivers a lifetime which is 8 s shorter than the beam method. At present\, the mismatch is at the 4 sigma level. If the mismatch is not due to (yet undiscovered) systematic errors\ , one should search for theoretical explanations. We then discuss which th eoretical solutions have been proposed in the literature and propose a nov el one based on the effect of quantum measurements on the lifetime of quan tum systems.\n\nhttps://indico.koza.if.uj.edu.pl/event/1/contributions/12/ LOCATION:Collegium Maius URL:https://indico.koza.if.uj.edu.pl/event/1/contributions/12/ END:VEVENT BEGIN:VEVENT SUMMARY:Single-event based TOF FBP image reconstruction in J-PET DTSTART;VALUE=DATE-TIME:20190627T142500Z DTEND;VALUE=DATE-TIME:20190627T144500Z DTSTAMP;VALUE=DATE-TIME:20260609T214539Z UID:indico-contribution-1-19@indico.koza.if.uj.edu.pl DESCRIPTION:Speakers: Roman Shopa (National Centre for Nuclear Research\, Poland)\nWe report the results of a modified time-of-flight (TOF) filtered back projection (FBP) image reconstruction method\, employed for the Jagi ellonian PET (J-PET) scanners of differing geometries. Additional dimensio n imposed by TOF in projection space significantly reduces the number of c oincidences per bin\, which affects performance. However\, high temporal r esolution of J-PET substantiates analytical TOF-based techniques that oper ate in image space with the most likely position (MLP) of positronium anni hilation. It is shown that FBP could be represented as a sum of single-eve nt reconstructions\, each performed around MLP within a limited volume by the truncation of radiotracers using TOF and filtering kernels. Such appro ach resembles kernel density estimation (KDE) applied to MLP with non-symm etrical spherical kernel and\, likewise\, is highly scalable with the pers pective of being employed for real time imaging. For 1-mm spherical source \, simulated inside 3-layer 50-cm long J-PET scanner using GATE (Geant4 Ap plication for Tomographic Emission)\, the estimated transverse spatial res olution was about 4-6 mm\, which is better than for KDE and conventional n on-TOF FBP from STIR software package. Axial resolution of ~20 mm were sim ilar for all three methods\, which is consistent with temporal properties of tube photomultipliers utilised for the readout in J-PET.\n\nhttps://ind ico.koza.if.uj.edu.pl/event/1/contributions/19/ LOCATION:Collegium Maius URL:https://indico.koza.if.uj.edu.pl/event/1/contributions/19/ END:VEVENT BEGIN:VEVENT SUMMARY:Biomedical application of Positron Annihilation Lifetime Spectrosc opy - in vitro studies of alive normal and cancer cell lines and tissues DTSTART;VALUE=DATE-TIME:20190627T093000Z DTEND;VALUE=DATE-TIME:20190627T095000Z DTSTAMP;VALUE=DATE-TIME:20260609T214539Z UID:indico-contribution-1-157@indico.koza.if.uj.edu.pl DESCRIPTION:Speakers: Ewelina Kubicz (Jagiellonian University)\n**Abstract **\nPositron Annihilation Lifetime Spectroscopy (PALS) allow to examine st ructure of materials at nano and sub-nanometer level. This technique is ba sed on the lifetime and production intensity of ortho-positronium atoms in free volumes of given structures. Recent studies shown it can be used for studies of biological structures [1-5] and morphometric imaging as propos ed in patent [6]. \nResults of the first experiment with alive melanocytes and melanoma cell culture in vitro will be presented. PALS\, viability an d microscopic studies were performed on normal and cancer cells cultures\, before and after measurement conducted in condition close to ones in huma n body (eg. in 37 C deg. ). As a result\, it was proved that PALS can be s uccessfully used for studies of living organisms\, their dynamics and its relation to the cells morphology. \n Studies with human tissue will also b e presented. Research were conducted on cardiac myxoma (benign hart tumour ) with adipose mediastinal tissue as a control and later with myxoma cells extracted from the tissue\, to compare between these two models. All thes e studies shown significant differences in o-Ps lifetime between normal an d cancer cells.\n This experiment show perspective for biomedical applicat ion of PALS technique\, giving insights in determination of early and adv anced stages of carcinogenesis by observing changes in biomechanical param eters between normal and tumour cells. Simultaneous investigations of PALS and PET can be performed with the Jagiellonian Positron Emission Tomograp h (J-PET) [6-9] which is a multi-purpose detector used for investigations with positronium atoms in life-sciences as well as for development of medi cal diagnostics. J-PET is capable of imaging of properties of positronium produced inside the human body [1\, 10].\n \n\n**References:**\n[1] Kubicz E. et al\, Nukleonika 60\, 749 (2015)\n[2] Jasińska B. et al\, Acta Phys . Polon. B 47\, 453 (2016) \n[3] Jasińska B. et al.\, Acta Phys. Polon. A. 132\, 1556 – 1558 (2017).\n[4] Jean Y. C. et al\, Applied Surface Sci ence 252\, 3166–3171 (2006)\n[5] Liu G. et al\, Phys. stat. sol. (c) 4\, No. 10 (2007)\n[6] Moskal P. et al.\, Patent No: US 9851456\; PL 227658\; PCT/EP2014/068374.\n[7] Moskal P.\, Zoń N. et. al\, Nucl. Instr. and Met h. A 775\, 54 – 62 (2015)\n[8] Moskal P. et al\, Phys. Med. Biol. 61\, 2 025-2047 (2016) \n[9] Kamińska D. et al. Eur. Phys. J. C 76:445 (2016)\n [10] Moskal P. et al.\, Phys. Med. Biol. 64 055017 (2019).\n[11] Gajos A . et al.\, Advances in High Energy Phys.\, ID 8271280\, 10 pages\, (2018). \n\nhttps://indico.koza.if.uj.edu.pl/event/1/contributions/157/ LOCATION:Collegium Maius URL:https://indico.koza.if.uj.edu.pl/event/1/contributions/157/ END:VEVENT BEGIN:VEVENT SUMMARY:Design of a Novel Compact Detector based on the BGO and SiPM for O rtho-Positronium Physics DTSTART;VALUE=DATE-TIME:20190626T093500Z DTEND;VALUE=DATE-TIME:20190626T095000Z DTSTAMP;VALUE=DATE-TIME:20260609T214539Z UID:indico-contribution-1-8@indico.koza.if.uj.edu.pl DESCRIPTION:Speakers: HyeoungWoo Park (Kyungpook National University)\n**D esign of a Novel Compact Detector based on the BGO and SiPM for Ortho-Posi tronium Physics**\n\nHyeoungWoo Park$^1$\, D.W. Jung$^1$\, Sanghoon Hwang$ ^2$\, H.J. Kim$^1$*\n\n*$^1$Department of Physics\, Kyungpook National Uni versity\, Daegu 702-701\, Korea*\n*$^2$Korea Research Institute of Standar ds and Science (KRISS)\, Daejeong\, Republic of Korea*\n\nPositronium deca y research is one of the sensitive probe to discover new physical phenomen on. Because of the pairing system of electron (particle) and positron (ant iparticle)\, we can study reactions which is forbidden by standard model. The reported positronium decay systems were composed of positron trigger a nd gamma detection parts. The trigger part is usually coupled to an optica l fiber and the photomultiplier tube (PMT). The optical fiber trigger effi ciency degrades due to significant scintillation light loss. Therefore\, w e designed a novel compact detector that directly collects scintillation l ight. In general\, the size of the PMT is relatively large\, so a silicon photomultiplier (SiPM) was used to make compact trigger part for direct co llection of scintillation light. In this research\, the trigger part consi sts of plastic scintillator coupled directly to single channel SiPM to obt ain the positron's signal from the center of the detector. The trigger par t is surrounded by the gamma detection part with an array of 14 $\\times$ 14 BGO scintillators (7.5 $\\times$ 7.5 $\\times$ 150 mm$^3$) to detect ga mma decay in all directions. For dual readout both sides of the BGO scinti llators are coupled with 7 $\\times$ 7 arrangement of 2 $\\times$ 2 arrays for a total of 14 $\\times$ 14 SiPMs. The designed frame and grid are use d to support BGO scintillators and SiPMs. We obtained pretest data of a po sitron trigger signal and a gamma energy spectrum of $^{22}$Na and $^{137} $Cs radioactive sources for the novel compact detector. The detector will be used to study of C-parity violation\, invisible decay\, and rare decay. \n\nhttps://indico.koza.if.uj.edu.pl/event/1/contributions/8/ LOCATION:Collegium Maius URL:https://indico.koza.if.uj.edu.pl/event/1/contributions/8/ END:VEVENT BEGIN:VEVENT SUMMARY:The energy released by electron capture into different atomic subs hells of $^{242m}$Am isomer for different ionization degrees DTSTART;VALUE=DATE-TIME:20190625T113000Z DTEND;VALUE=DATE-TIME:20190625T130000Z DTSTAMP;VALUE=DATE-TIME:20260609T214539Z UID:indico-contribution-1-60@indico.koza.if.uj.edu.pl DESCRIPTION:Speakers: Łukasz Syrocki (Nicolaus Copernicus University)\nFo llowing the first experimental observation of $^{93m}$Mo isomer depletion via nuclear excitation by electron capture (NEEC)\, we have made theoretic al investigation related to the $^{242m}$Am isomer ($T_{1/2}$ ~ 141 y). It is worth to underline that for $^{242m}$Am isomer the probability of the NEEC process can be even higher than for the $^{93m}$Mo isomer [1-3].\n\n\ nWe have performed here the extensive multiconfiguration Dirac-Fock [4-9] study concerning the dependence of the energy released by electron capture into different subshells for N\, O and P shell of $^{242m}$Am isomer on t he degree of ionization and electronic configuration.\n\nThese study have a basic research character\, because they are concentrated on a systematic study directed toward greater knowledge and understanding of the various aspects of a new physical phenomena\, i.e. the NEEC process. The presented studies may contribute to the development of the concept of new ultra-ene rgy-dense nuclear power sources\, and $\\gamma$-ray lasers.\n\nACKNOWLEDGM ENTS \nThis work is supported by the Polish National Science Center under Grant number 2017/25/B/ST2/00901. \n\nREFERENCES\n[1] M. Polasik\, K. Sł abkowska\, J.J. Carroll\, C.J. Chiara\, Ł. Syrocki\, E. Węder\, and J. R zadkiewicz\, Phys. Rev. C 95 034312 (2017).\n[2] C. J. Chiara\, J. J. Car roll\, M. P. Carpenter\, J. P. Greene\, D. J. Hartley\, R. V. F. Janssens\ , G. J. Lane\, J. C. Marsh\, D. A. Matters\, M. Polasik\, J. Rzadkiewicz\, D. Seweryniak\, S. Zhu\, S. Bottoni\, A. B. Hayes & S. A. Karamian\, Nat ure 554 216–218 (2018).\n[3] J. Rzadkiewicz\, M. Polasik\, K. Słabko wska\, Ł. Syrocki\, E. Węder\, J.J. Carroll\, C.J. Chiara\, Phys. Rev. C 99\, 044309 (2019).\n[4] I.P. Grant\, Int. J. Quantum Chem. 25 23 (1984) .\n[5] K.G. Dyall\, I.P. Grant\, C.T. Johonson\, F.A. Parpia\, and E.P. P lummer\, Comput. Phys. Commun. 55 425 (1989).\n[6] M. Polasik\, Phys. Rev . A 39 616 (1989)\; Phys. Rev. 41 3689 (1990)\; Phys. Rev. 52 227 (1995)\; Phys. Rev. 58 1840 (1998).\n[7] F.A. Parpia\, C.F. Fischer\, and I.P. Gr ant\, Comput. Phys. Commun. 94 249 (1996).\n[8] P. Jönsson\, X. He\, C.F . Fischer\, and I.P. Grant\, Comput. Phys. Commun. 177 597 (2007).\n[9] C . F. Fischer and G. Gaigalas\, Phys. Rev. A 85 042501 (2012).\n\nhttps://i ndico.koza.if.uj.edu.pl/event/1/contributions/60/ LOCATION:Collegium Maius URL:https://indico.koza.if.uj.edu.pl/event/1/contributions/60/ END:VEVENT BEGIN:VEVENT SUMMARY:Search for eta-mesic helium with WASA-at-COSY DTSTART;VALUE=DATE-TIME:20190624T124500Z DTEND;VALUE=DATE-TIME:20190624T130500Z DTSTAMP;VALUE=DATE-TIME:20260609T214539Z UID:indico-contribution-1-58@indico.koza.if.uj.edu.pl DESCRIPTION:Speakers: Magdalena Skurzok (INFN-LNF Frascati)\nThe existence of eta-mesic nuclei in which the eta meson is bound with nucleus via the strong interaction was postulated by Haider and Liu over thirty years ago\ ,however till now it has not been confirmed experimentally.\n\nThe experim ents dedicated to the search for eta-mesic helium were performed using WAS A detection setup installed at the COSY accelerator in the Research Center Juelich.\nThe search for the eta-mesic bound states is conducted via the measurement of the excitation function for selected decay channels of the He-eta systems. This presentation will summarize the present status of the research.\n\nhttps://indico.koza.if.uj.edu.pl/event/1/contributions/58/ LOCATION:Collegium Maius URL:https://indico.koza.if.uj.edu.pl/event/1/contributions/58/ END:VEVENT BEGIN:VEVENT SUMMARY:Critical look at the time--energy uncertainty relations DTSTART;VALUE=DATE-TIME:20190625T082000Z DTEND;VALUE=DATE-TIME:20190625T084000Z DTSTAMP;VALUE=DATE-TIME:20260609T214539Z UID:indico-contribution-1-14@indico.koza.if.uj.edu.pl DESCRIPTION:Speakers: Krzysztof Urbanowski (University of Zielona Gora)\nW e analyze the Heisenberg and Mandelstam-Tamm time-energy uncertainty relat ions \nand we show that within the Quantum Mechanics of Schroedinger and v on Neumann\,\ncontrary to the position-momentum uncertainty relation\, the se\nrelations can not be considered as universally valid.\n\nhttps://indic o.koza.if.uj.edu.pl/event/1/contributions/14/ LOCATION:Collegium Maius URL:https://indico.koza.if.uj.edu.pl/event/1/contributions/14/ END:VEVENT BEGIN:VEVENT SUMMARY:Studies of the orthopositronium lifetime for cancer diagnostics DTSTART;VALUE=DATE-TIME:20190625T113000Z DTEND;VALUE=DATE-TIME:20190625T130000Z DTSTAMP;VALUE=DATE-TIME:20260609T214539Z UID:indico-contribution-1-155@indico.koza.if.uj.edu.pl DESCRIPTION:Speakers: Zuzanna Bura ()\nPositron Annihilation Lifetime Spec troscopy is a material testing method based on the analysis of the lifetim e of positronium\, which depends on the structure of the material in which it was formed. Thanks to this property\, we might use this method in the future for cancer diagnostic purposes. The main goal of this work was to e xamine the influence of environmental conditions like temperature or humid ity on the properties of o-Ps formed in cancerous and healthy tissues. A s eries of measurements were also made to compare the lifetime of positroniu m in normal tissue and fixed in formalin in order to determine some relati onships that can help in future research.\n\nhttps://indico.koza.if.uj.edu .pl/event/1/contributions/155/ LOCATION:Collegium Maius URL:https://indico.koza.if.uj.edu.pl/event/1/contributions/155/ END:VEVENT BEGIN:VEVENT SUMMARY:Revisiting the charged kaon mass DTSTART;VALUE=DATE-TIME:20190625T141500Z DTEND;VALUE=DATE-TIME:20190625T143500Z DTSTAMP;VALUE=DATE-TIME:20260609T214539Z UID:indico-contribution-1-74@indico.koza.if.uj.edu.pl DESCRIPTION:Speakers: Damir Bosnar (Department of Physics\, Faculty of Sci ence\, University of Zagreb)\nThe precision of the charged kaon mass is mu ch worse\, an order of magnitude\, than the precision of the charged pion mass. Beside the interest in its intrinsic value\, the uncertainty in the kaon mass has large influence on the K-N scattering lengths and through th em on the kaon-nucleon sigma terms\, which reflect the degree of chiral sy mmetry breaking.\nNowadays\, the charged kaon mass can be most precisely d etermined in the measurements of X-ray transitions in kaonic atoms. The cu rrent value\, m$_K$=493.677±0.013 MeV\, has been obtained as a weighted a verage of the six measurements\, which have very different uncertainties\, ranging from 7 keV up to 54 keV. Two most recent and precise measurements \, which largely determine the above value\, differ by 60 keV and have unc ertainty of approximately 10 keV. \nTo resolve this discrepancy a new meas urement is highly desirable\, and it would be sufficient that it has the s ame precision as the two above mentioned measurements to substantially enh ance the precision of the kaon mass.\nWe plan to determine the charged kao n mass with the requested precision in measurements of X-ray transitions i n kaonic atoms of selected solid targets with two HPGe detectors at DAPHNE in Frascati\, Italy\, initially in parallel with SIDDHARTA-2 measurements of X-ray transitions in gaseous targets\, and\, if necessary\, as a dedic ated measurement.\nSince DAPHNE is producing kaon pairs of low momenta\, c ontrary to the previous measurements\, there is no need for a degrader at all or only a thin degrader to slow down kaons and there are no secondary particles in the beam\, which is certainly an advantage. But we expect hig h bremsstrahlung close to the interaction point and also background origin ating from the kaons absorbed by nuclei. The latter is being determined by using GEANT4 simulations and to determine the beam background measurement s in the hall are necessary\, and indeed this background will dictate the performance of this measurement. The status of the preparations of the mea surement will be presented.\n\nhttps://indico.koza.if.uj.edu.pl/event/1/co ntributions/74/ LOCATION:Collegium Maius URL:https://indico.koza.if.uj.edu.pl/event/1/contributions/74/ END:VEVENT BEGIN:VEVENT SUMMARY:$\\eta N$ scattering parameters and possible $\\eta' d$ bound stat e from $\\eta$ photoproduction on the deuteron DTSTART;VALUE=DATE-TIME:20190624T122000Z DTEND;VALUE=DATE-TIME:20190624T124500Z DTSTAMP;VALUE=DATE-TIME:20260609T214539Z UID:indico-contribution-1-61@indico.koza.if.uj.edu.pl DESCRIPTION:Speakers: Takatsugu Ishikawa (Research Center for Electron Pho ton Science\, Tohoku University)\nAmong the two-body dynamics of the meson -nucleon systems\, the interaction between the eta meson ($\\eta$) and nuc leon ($N$) is not well known although it has been found to be attractive. An experiment [1] is conducted to determine the low-energy $\\eta N$ scatt ering parameters using a special kinematics at the Research Center for Ele ctron Photon Science (ELPH)\, Tohoku University. The energy and momentum o f the emitted proton ($p$) are measured at 0 degrees for $\\eta$ photoprod uction on the deuteron at incident energies around 0.94 GeV\, which gives the low relative momentum between $\\eta$ and neutron ($n$) in the final state. Low-energy $\\eta n$ scattering is likely to take place in this con dition\, and the scattering parameters can be determined from the differen tial cross section as a function of the $\\eta n$ invariant mass (correspo nding to the relative $\\eta n$ momentum) [2]. We present the current stat us of the experiment.\n\nRecently\, a possible $\\eta'd$ bound state is th eoretically investigated [3]. A structure corresponding to the state can b e observed via the $\\gamma d\\to \\eta d$ at incident energies around 1.2 GeV. In case of backward $\\eta$ emission\, the structure becomes promine nt because a background contribution coming from quasi-free single-step $\ \eta$ emission is highly suppressed. $\\eta$ photoproduction on the deuter on has been experimentally studied at ELPH below incident energies of 1.15 GeV. The angular differential cross sections are determined at backward $\\eta$ emission angles. We also present the preliminary results for the e nergy dependence and discuss a possible $\\eta'd$ bound state.\n\n[1] T. I shikawa et al.\, Acta Phys. Polon. B 48\, 1801 (2017).\n[2] S.X. Nakamura\ , H. Kamano\, T. Ishikawa\, Phys. Rev. C 96\, 042201 (R) (2017).\n[3] T. S ekihara\, H. Fujioka\, T. Ishikawa\, Phys. Rev. C 97\, 045202 (2017).\n\nh ttps://indico.koza.if.uj.edu.pl/event/1/contributions/61/ LOCATION:Collegium Maius URL:https://indico.koza.if.uj.edu.pl/event/1/contributions/61/ END:VEVENT BEGIN:VEVENT SUMMARY:Application of innovative technologies in PET imaging DTSTART;VALUE=DATE-TIME:20190627T084500Z DTEND;VALUE=DATE-TIME:20190627T090500Z DTSTAMP;VALUE=DATE-TIME:20260609T214539Z UID:indico-contribution-1-158@indico.koza.if.uj.edu.pl DESCRIPTION:Speakers: Grzegorz Korcyl (Jagiellonian University)\nTotal-bod y PET scanners impose elevated requirements on data processing systems. Co nsidering significant increase of the number of data channels and the reso lution of this data questions arise if the classic computing platforms are still suited for imaging.\nField Programmable Gate Arrays (FPGA) are rela tively new devices that can break the hegemonie of CPUs and GPUs in high p erformance computing systems. They offer unique capabilities like true-rea l-time processing\, natural parallelism and vast amount of computing resou rces enclosed in a single chip.\nThe talk will focus on application of FPG A devices in the entire data processing pipeline of a PET scanner: from di gitized signal to the reconstructed image.\n\nhttps://indico.koza.if.uj.ed u.pl/event/1/contributions/158/ LOCATION:Collegium Maius URL:https://indico.koza.if.uj.edu.pl/event/1/contributions/158/ END:VEVENT BEGIN:VEVENT SUMMARY:Measurement of time-dependent CP violation in $B^0\\to J/\\psi K^0 _S$ decays using early Belle II data DTSTART;VALUE=DATE-TIME:20190626T102000Z DTEND;VALUE=DATE-TIME:20190626T103500Z DTSTAMP;VALUE=DATE-TIME:20260609T214539Z UID:indico-contribution-1-16@indico.koza.if.uj.edu.pl DESCRIPTION:Speakers: Benjamin Oberhof ()\nThe Belle II experiment at the SuperKEKB energy-asymmetric $e^+ e^-$ collider is a substantial upgrade of the B factory facility at the Japanese KEK laboratory. The design luminos ity of the machine is $8\\times 10^{35}$ cm$^{-2}$s$^{-1}$ and the Belle I I experiment aims to record 50 ab$^{-1}$ of data\, a factor of 50 more tha n its predecessor. From February to July 2018\, the machine has completed a commissioning run\, achieved a peak luminosity of $5.5\\times 10^{33}$ c m$^{-2}$s$^{-1}$\, and Belle II has recorded a data sample of about 0.5 fb $^{-1}$. Main operation of SuperKEKB has started in March 2019. In this pr esentation we report a measurement of the time-dependent CP violation para meter for $B^0(\\bar B^0)\\to J/\\psi K^0_S$ using this early data set. On e neutral $B$ meson is reconstructed in the $J/\\psi K^0_S$ $CP$-eigenstat e decay channel and the flavor of the accompanying $B$ meson is identified to be either $B^0$ or $\\bar B^0$ from its decay products. We present a n ew concept for the time-dependent $CP$ violation fit together with initial results for the parameters of $B^0$ mixing-induced phenomena and the life time of $B^0$.\n\nhttps://indico.koza.if.uj.edu.pl/event/1/contributions/1 6/ LOCATION:Collegium Maius URL:https://indico.koza.if.uj.edu.pl/event/1/contributions/16/ END:VEVENT BEGIN:VEVENT SUMMARY:Radiation doses for patients during a dual-energy contrast-enhance d spectral mammography DTSTART;VALUE=DATE-TIME:20190626T135000Z DTEND;VALUE=DATE-TIME:20190626T141000Z DTSTAMP;VALUE=DATE-TIME:20260609T214539Z UID:indico-contribution-1-17@indico.koza.if.uj.edu.pl DESCRIPTION:Speakers: Kamil Kisielewicz (Centre of Oncology\, Maria Sklodo wska-Curie Memorial Institute Krakow Branch)\nBreast cancer (BC) is one of the most common women malignancies. Nowadays mammography and ultrasound e xaminations are basic methods used in screening programs. Mammography prov ides early microcalcification recognition\, crucial for further cancer dia gnosis. \nHigh progress in the development of new mammography devices e.g. new flat panel detectors\, compression paddles\, spectral modes (CESM – Contrast Enhanced Spectral Mammography) and new type of X-Ray tubes gives a variety of new diagnostic modules available for clinical use. \nThe aim of this study was to compare doses given to the patients during conventio nal mammography with doses obtained from dual-energy contrast-enhanced spe ctral mammography. The comparison of entrance surface air kerma (ESAK) and mean glandular dose (MGD) values for both options are discussed in the pa per\, respectively. \nIn the study 482 women diagnosed with screening mamm ography between 2011 and 2014 were respectivetly enrolled. The first group of 250 patients was examined using a fully digital mammo unit\, GE Senogr aphe Essential. The second group of 232 patients were examined using the s ame digital mammography device developed by GE Healthcare with the option of dual-energy CESM acquisition (SenoBright®).\nFor our group of patients and for an average breast thickness of 45mm (43 - 52 mm)\, median MGD is 6.6 mGy (values of MGD for a low-energy acquisition and high-energy acquis ition were equal to 5.1 mGy and 1.5 mGy\, respectively) for CESM compared to 1.2 mGy for Full Field Digital Mammography (FFDM). Moving up to 72 mm a verage breast thickness\, MGD for CESM is nearly 7.5 times higher than for FFDM - medians of 12 mGy and 1.6 mGy\, respectively.\nOur preliminary dat a show that CESM might be a new diagnostic tool allowing an accurate detec tion of malignant breast lesions\, giving results similar to those receive d from magnetic resonance imaging (MRI). However due to higher levels of r adiation exposure during CESM\, one should take risk factor into account. \nEach method has its own benefits with respect to specific applications w hich are further discussed.\n\nhttps://indico.koza.if.uj.edu.pl/event/1/co ntributions/17/ LOCATION:Collegium Maius URL:https://indico.koza.if.uj.edu.pl/event/1/contributions/17/ END:VEVENT BEGIN:VEVENT SUMMARY:The proton Boron Capture Therapy activity and the NEPTUNE project DTSTART;VALUE=DATE-TIME:20190626T152500Z DTEND;VALUE=DATE-TIME:20190626T155000Z DTSTAMP;VALUE=DATE-TIME:20260609T214539Z UID:indico-contribution-1-89@indico.koza.if.uj.edu.pl DESCRIPTION:Speakers: Pablo Cirrone (INFN-LNS)\nRecently an increase of pr otontherapy effectiveness for irradiations occurring in the presence of 11 B atoms has been observed. A role in this effect should be played by the h igh-LET alpha particles mainly generated by the p(11B\,a)2a channel\, whic h has a cross section of the order of 1 barn at very low incident proton e nergy. However\, analytical calculations indicate that the number of alpha s produced is too low to yield the observed biological effects.\nThe Itali an INFN institute recently funded a project called NEPTUNE (Nuclear proces s-driven Enhancement of Proton Therapy UNraVeled) with the main aim to stu dy and understand this radiobiological effect.\nThe main objectives of NEP TUNE will be the consolidation of these results\, extending them to includ e another nuclear reaction between protons and 19F and focusing on underst anding all the physical and biological mechanisms involved. Physical chara cterization of the radiation field will be performed with tissue-equivalen t detectors of various types\, all based on micro- and nanodosimetric tech niques. At the same time\, biological measurements will be performed for d ifferent cell lines using several endpoints. New biological approaches wil l be to considered to study the problem from different points of view\, wh ich could reveal mechanisms not yet considered. All experimental data will be compared with predictions from analytical and Monte Carlo models.\n\nh ttps://indico.koza.if.uj.edu.pl/event/1/contributions/89/ LOCATION:Collegium Maius URL:https://indico.koza.if.uj.edu.pl/event/1/contributions/89/ END:VEVENT BEGIN:VEVENT SUMMARY:Comparison of the JISP16 and the AV18 forces based predictions for the differential cross section and the nucleon analyzing power in d(n\, n n)p reaction DTSTART;VALUE=DATE-TIME:20190625T113000Z DTEND;VALUE=DATE-TIME:20190625T130000Z DTSTAMP;VALUE=DATE-TIME:20260609T214539Z UID:indico-contribution-1-48@indico.koza.if.uj.edu.pl DESCRIPTION:Speakers: Volodymyr Soloviov (Jagiellonian University\, Marian Smoluchowski Institute of Physics)\nThe JISP16 nucleon-nucleon potential [1] is applied to investigate the nucleon induced deuteron breakup reactio n at energies E=13 and 65 MeV. We use the formalism of Faddeev equation [2 ] and proceed like in the case of the application of the JISP16 potential to the elastic scattering process [3].\nOur study reveals that this force delivers\, in general\, qualitatively a similar description of the exclusi ve cross-section and analyzing power for the studied reaction to the one b ased on the standard realistic nucleon-nucleon AV18 interaction [4]. Howev er\, in some regions of the phase space\, the differential cross sections based on the JISP16 and on the AV18 forces differ by more than 100% and 50 % at E=13 and E=65 MeV\, respectively. In the case of analyzing power – there is a difference of more than 100% at E=65 MeV. Such specific parts o f the phase space can be used to fine-tune the JISP16 potential parameters .\n\nReferences list: \n\n[1] A. M. Shirokov\, J. P. Vary\, A. I. Mazur\, and T. A. Weber\, Phys. Lett. B644\, 33 (2007)\n[2] W. Glöckle et al.\, P hys. Rept. 274\, 107 (1996)\n[3] R. Skibiński et al.\, Phys. Rev. C97\, 0 14002 (2018)\n[4] R. B. Wiringa\, V. G. J. Stoks\, and R. Schiavilla\, Phy s. Rev. C51\, 38 (1995)\n\nhttps://indico.koza.if.uj.edu.pl/event/1/contri butions/48/ LOCATION:Collegium Maius URL:https://indico.koza.if.uj.edu.pl/event/1/contributions/48/ END:VEVENT BEGIN:VEVENT SUMMARY:Study of nanoscopic porosity in black metals by positron annihilat ion spectroscopy DTSTART;VALUE=DATE-TIME:20190625T113000Z DTEND;VALUE=DATE-TIME:20190625T130000Z DTSTAMP;VALUE=DATE-TIME:20260609T214539Z UID:indico-contribution-1-23@indico.koza.if.uj.edu.pl DESCRIPTION:Speakers: Oksana Melikhova (Faculty of Mathematics and Physics \, Charles University)\nThermal evaporation or magnetron sputtering of met als in carefully adjusted low pressure (~100 Pa) of nitrogen gas enables d eposition of peculiar porous structures known as black metals. Because of their unique morphology black metals highly absorb light in the visible to infrared spectral region. The surface of black metals appears dark since light incident on the surface is completely absorbed in multiple reflectio ns in fractal-like structure of percolated micro-cavities with a broad siz e distribution. Black metals are used in electronic devices for optical s ensing and imaging\, solar cells\, camouflage and gas sensors. The physica l mechanism leading to formation of peculiar porous structure of black met als is not completely understood yet and parameters for their preparation were found empirically. The development of black metals with morphology of nanoscopic porosity tailored for specific application requires understand ing of the mechanism of growth of these materials. \nPositronium (Ps)\, i. e. hydrogen-like bound state of electron and positron\, is excellent non-d estructive probe of nanoscopic pores in solids. In conventional metals Ps does not form because any bound state of positron and electron is quickly destroyed by the screening of conduction electrons. However\, in porous me tals containing micro-cavities a thermalized positron may pick an electron on inner surface and escape into a cavity forming Ps. Ortho-positronium ( o-Ps) formed by this process decays predominantly by pick–off annihilati on and its lifetime is determined by the scattering rate on the walls of t he cavity. Hence\, measurement of o-Ps lifetime enables determination of s ize distribution of microcavities. \nIn the present work black Al\, Au and Pd films prepared by magnetron sputtering and thermal evaporation were characterized by positron annihilation spectroscopy. Porous black films w ere compared with conventional smooth films. It was found that Ps is forme d in smooth films on the surface only while in black metals it is formed i n the whole film. The size distribution of micro-cavities in black metal f ilms prepared by thermal deposition and magnetron sputtering was determine d. Moreover\, the development of the size and morphology of nanoscopic por osity with increasing film thickness was examined. It was found that the f ilm first grows on a substrate as a smooth layer. Above certain critical t hickness of a few nm the film starts to grow as a porous layer and its rou ghness gradually increases with increasing thickness.\n\nhttps://indico.ko za.if.uj.edu.pl/event/1/contributions/23/ LOCATION:Collegium Maius URL:https://indico.koza.if.uj.edu.pl/event/1/contributions/23/ END:VEVENT BEGIN:VEVENT SUMMARY:Challenges in the Boron Neutron Capture Therapy DTSTART;VALUE=DATE-TIME:20190626T144000Z DTEND;VALUE=DATE-TIME:20190626T150000Z DTSTAMP;VALUE=DATE-TIME:20260609T214539Z UID:indico-contribution-1-55@indico.koza.if.uj.edu.pl DESCRIPTION:Speakers: Michał Silarski (Jagiellonian University)\nThe use of neutron capture reactions in the cancer therapy was proposed already in 1936\, four years after the discovery of neutron. Up to now this kind of cancer treatment is widely used for tumors with a poor response to traditi onal therapies (surgery\, γ radiotherapy or chemotherapy). The use of 10B selectively absorbed by the cancer cells provide high dose delivery to t he malignancy with a substantially smaller irradiation of the healthy surr ounding tissues. Despite of the rich history feasibility studies and clini cal trials of this therapy are still carried out all over the world. In th is talk we present selected open questions in view of the BNCT development in Poland\, in particular on the new neutron sources and dose monitoring systems.\n\nhttps://indico.koza.if.uj.edu.pl/event/1/contributions/55/ LOCATION:Collegium Maius URL:https://indico.koza.if.uj.edu.pl/event/1/contributions/55/ END:VEVENT BEGIN:VEVENT SUMMARY:Recent topics on mesic atoms and mesic nuclei DTSTART;VALUE=DATE-TIME:20190624T141500Z DTEND;VALUE=DATE-TIME:20190624T144000Z DTSTAMP;VALUE=DATE-TIME:20260609T214539Z UID:indico-contribution-1-62@indico.koza.if.uj.edu.pl DESCRIPTION:Speakers: Satoru Hirenzaki (Nara Women's University)\nMesic at oms and mesic nuclei are considered to provide valuable information on mes on properties at finite density\, which are closely related to the aspects of the chiral symmetry of strong interaction. So far\, the structure and formation of the bound states of various mesons such as $\\pi$\, $\\eta$\, $\\eta(958)$\, and $\\phi$ have been studied both theoretically and expe rimentally. In this talk\, we will briefly review the studies of the meso n bound states and report the recent research activities on mesic atoms an d mesic nuclei.\n\nhttps://indico.koza.if.uj.edu.pl/event/1/contributions/ 62/ LOCATION:Collegium Maius URL:https://indico.koza.if.uj.edu.pl/event/1/contributions/62/ END:VEVENT BEGIN:VEVENT SUMMARY:Further Theoretical Analysis on the $K^{-} {}^{3} \\text{He} \\to \\Lambda p n$ Reaction for the $\\bar{K} N N$ Bound-State. Molecular appro ach to the recent $\\Omega_c$ and pentaquark LHCb states. DTSTART;VALUE=DATE-TIME:20190624T153000Z DTEND;VALUE=DATE-TIME:20190624T155500Z DTSTAMP;VALUE=DATE-TIME:20260609T214539Z UID:indico-contribution-1-87@indico.koza.if.uj.edu.pl DESCRIPTION:Speakers: Eulogio Oset (University of Valencia)\nIn the first part I shall present an update of the theoretical approach of [1] to the $ K^{-} {}^{3} \\text{He} \\to \\Lambda p n$ Reaction [2]\, adapting it to t he most recent experimental results [3]\, where we show a good agreement w ith experiment using a picture based on chiral dynamics for the $\\bar{K} N N$ Bound-State\, which has a binding of about 20 MeV\, shared by most th eoretical approaches.\n In the second part\, I will present results based on the molecular approach to the recent $\\Omega_c$ and pentaquark LHCb s tates\, where a good reproduction on masses and widths is obtained for som e oberved states\, and others are predicted.\n\n[1] T. Sekihara\, E. Oset and A. Ramos\, Prog. Theor. Exp. Phys. 2016\, 123D03 (2016).\n[2] Y. Sada et al. [J-PARC E15 Collaboration]\, Prog. Theor. Exp. Phys. 2016\, 051D01 (2016).\n[3] S. Ajimura et al. [J-PARC E15 Collaboration]\, Phys. Lett. B 789\, 620 (2019).\n\nhttps://indico.koza.if.uj.edu.pl/event/1/contribution s/87/ LOCATION:Collegium Maius URL:https://indico.koza.if.uj.edu.pl/event/1/contributions/87/ END:VEVENT BEGIN:VEVENT SUMMARY:Advanced optical simulation study on the spatial resolution of a t hick monolithic PET detector DTSTART;VALUE=DATE-TIME:20190625T113000Z DTEND;VALUE=DATE-TIME:20190625T130000Z DTSTAMP;VALUE=DATE-TIME:20260609T214539Z UID:indico-contribution-1-42@indico.koza.if.uj.edu.pl DESCRIPTION:Speakers: Mariele Stockhoff (UGent)\nThe intrinsic spatial res olution of clinical positron emission tomography (PET) detectors is ~ 3 - 4 mm. A further improvement of the resolution using pixelated detectors wi ll not only result in a prohibitive cost\, but is also inevitably accompan ied by a strong degradation of important performance parameters like timin g\, energy resolution and sensitivity. Therefore\, it is likely that futur e generation high resolution PET detectors will be based on continuous mon olithic scintillation detectors. Monolithic detectors have attractive prop erties to reach superior 3D spatial resolution while outperforming pixelat ed detectors in timing\, energy resolution and sensitivity.\nIn this work\ , optical simulations including an advanced surface reflection model\, all ow us to investigate the influence of three parameters on the spatial reso lution: silicon photomultiplier (SiPM) pixel size\, photon detection effic iency and the number of channels used to read out the SiPM array. A luteti um-yttrium oxyorthosilicate (LYSO) crystal with dimensions 50x50x16 mm3 co upled to an SiPM array is calibrated and a nearest neighbor algorithm is u sed to position events. Findings show that the tested parameters affect th e spatial resolution resulting in 0.40 - 0.66 mm full width at half maximu m (FWHM). Best resolution could be obtained with smaller SiPM pixels\, hig her PDE\, and an individual channel readout. However\, it was shown that c ombining channels by adding their signals can significantly reduce the amo unt of readout channels while having small or no significant impact on the resolution. The mean depth of interaction estimation error is 1.6 mm. Thi s study demonstrates the ultimate spatial resolution that can be obtained with this detector without being constrained by practical limitations of e xperimental setups. In the future these optical simulations may be used as a more precise and fast method to obtain calibration data for real monoli thic detectors.\n\nhttps://indico.koza.if.uj.edu.pl/event/1/contributions/ 42/ LOCATION:Collegium Maius URL:https://indico.koza.if.uj.edu.pl/event/1/contributions/42/ END:VEVENT BEGIN:VEVENT SUMMARY:Experimental study of Lambda(1405) resonance via kaon-induced reac tions on deuteron DTSTART;VALUE=DATE-TIME:20190625T143500Z DTEND;VALUE=DATE-TIME:20190625T145500Z DTSTAMP;VALUE=DATE-TIME:20260609T214539Z UID:indico-contribution-1-163@indico.koza.if.uj.edu.pl DESCRIPTION:Speakers: Hiroyuki Noumi ()\nThere are long-standing arguments on a meson-baryon aspect of the Lambda(1405) resonance. In particular\, p ole structure of Lambda(1405) has been intensively discussed. Since Lambda (1405) is located below the antikaon-nucleon (KbarN) mass threshold\, it i s impossible to form Lambda(1405) directly in the KbarN scattering in free space. Therefore\, we carried out an experiment to measure spectral shape s of Lambda(1405) in the d(K-\,n)piSigma reactions at J-PARC. In this reac tion\, a neutron is knocked out from a deuteron by an incident K- and a re coiled Kbar reacts with a residual nucleon decaying into a pion (pi) and a Sigma hyperon. In the case of the knocked-out neutron emitted at a forwar d angle\, the recoiled kaon momentum is as low as about 250 MeV/c. This re action is expected to enhance an S-wave KbarN scattering even below the Kb arN mass threshold since the recoiled Kbar and/or the residual nucleon cou ld be off-shell. We successfully measured pi-Sigma mass spectra below and above the KbarN mass threshold. We will discuss KbarN scattering amplitude deduced from the measured spectra.\n\nhttps://indico.koza.if.uj.edu.pl/ev ent/1/contributions/163/ LOCATION:Collegium Maius URL:https://indico.koza.if.uj.edu.pl/event/1/contributions/163/ END:VEVENT BEGIN:VEVENT SUMMARY:Design and implementation of new scintillation probes for the PAL spectrometry DTSTART;VALUE=DATE-TIME:20190625T113000Z DTEND;VALUE=DATE-TIME:20190625T130000Z DTSTAMP;VALUE=DATE-TIME:20260609T214539Z UID:indico-contribution-1-161@indico.koza.if.uj.edu.pl DESCRIPTION:Speakers: M.Sc.Eng. Konrad Wysogląd (UMCS Nuclear Methods Dep artment)\nInitial tests of a new measuring probe for use in PALS spectrome try were designed and carried out. Unlike commercial measuring probes\, Si PM’s were used as scintillation light detectors. Tests were carried out with various types of scintillation materials\, e.g. NaI (Tl)\, BaF2 & BC4 12. Three types of SiPM’s (KETEK & SensL) were also tested. \nMain adven tages of this project are: mobilty of new PAL spectrometer design (mPALS)\ , safety increase in field experiments and hazardous environments (no HV o n user side) and immunity to random magnetic field fluctuations (which is the main concern with PMT usage) \nThe new device will be able to be used for cancer diagnostics in hospital facilities.\n\nhttps://indico.koza.if.u j.edu.pl/event/1/contributions/161/ LOCATION:Collegium Maius URL:https://indico.koza.if.uj.edu.pl/event/1/contributions/161/ END:VEVENT BEGIN:VEVENT SUMMARY:Response functions and cross sections for inclusive neutrino scatt ering off $^2$H DTSTART;VALUE=DATE-TIME:20190625T113000Z DTEND;VALUE=DATE-TIME:20190625T130000Z DTSTAMP;VALUE=DATE-TIME:20260609T214539Z UID:indico-contribution-1-36@indico.koza.if.uj.edu.pl DESCRIPTION:Speakers: Alessandro Grassi ((for LENPIC Collaboration))\nNeut rino scattering on nuclei has been investigated for several decades. It pl ayed an important role in establishing fundamentals of the theory of weak interactions and electroweak unification. Later it became a tool to study the much more subtle properties of neutrinos\, such as masses and oscillat ions.\n\nMost of the calculations for neutrino scattering on light nuclei were performed in coordinate space\, see important Refs. (1-4). In a recen t paper (5) we presented momentum-space based results for several (anti)ne utrino induced reactions on light nuclei: $$\\nu(\\bar{\\nu}) +{^2}\\mathr m{H} \\rightarrow \\nu(\\bar{\\nu})+p+n \\\, \,\\\\\n\\bar{\\nu}+{^2}\\mat hrm{H}\\rightarrow e^++n+n \\\, \,\\\\\n\\nu (\\bar{\\nu})+{^3}\\mathrm{He }\\rightarrow \\nu (\\bar{\\nu})+p+{^2}\\mathrm{H} \\\, \,\\\\\n\\nu (\\ba r{\\nu})+{^3}\\mathrm{He}\\rightarrow \\nu (\\bar{\\nu})+p+p+n \\\, \,\\\\ \n\\nu (\\bar{\\nu})+{^3}\\mathrm{H}\\rightarrow \\nu (\\bar{\\nu})+p+{^2} \\mathrm{H} \\\, \,\\\\\n\\nu (\\bar{\\nu})+{^3}\\mathrm{H}\\rightarrow \\ nu (\\bar{\\nu})+n+n+p \\\,\, \\\\\n\\nu+{^3}\\mathrm{He} \\rightarrow e^+ +n+{^2}\\mathrm{H} \\\, \,\\\\\n\\nu+{^3}\\mathrm{He} \\rightarrow e^++n+n +p \\\,\, \\\\\n\\nu+{^3}\\mathrm{H} \\rightarrow e^++n+n+n \\\, .$$\nWe r estricted ourselves to neutrino energies up to 300 MeV and pointed out to problems arising from merging relativistic kinematics with nonrelativistic dynamics. For the inelastic reactions on the deuteron we calculated direc tly the total cross sections $\\sigma_{tot} (E)$ at many incoming neutrino energies. The essential building block for the total cross section at a g iven (anti)neutrino energy $E$ is the threefold differential cross section $d^3\\sigma/d\\Omega^{\\\, \\prime} \\\; d E^{\\\, \\prime}$\, which depe nds on $E$\, on the (anti)neutrino scattering angle $\\theta^{\\\, \\prime }$ and on its final energy $E^{\\\, \\prime}$.\n\nNamely\, the total cross section is most easily calculated as\n$$\n \\sigma_{tot} (E) = \n\\int d \\Omega^{\\\, \\prime} \\int d E^{\\\, \\prime}\n\\frac{d^3\\sigma}{d\\Ome ga^{\\\, \\prime} \\\; d E^{\\\, \\prime}} \\\, = \\\,\n2 \\pi \\int d \\t heta^{\\\, \\prime} \\sin \\theta^{\\\, \\prime} \\int d E^{\\\, \\prime} \n\\frac{d^3\\sigma}{d\\Omega^{\\\, \\prime} \\\; d E^{\\\, \\prime}} \\\, .\n$$ \nThe cross section $d^3\\sigma/d\\Omega^{\\\, \\prime} \\\; d E^{\ \\, \\prime}$ can be expressed in terms of the so-called response function s $R_{jk}$ (5)\, which depend on two parameters only: on the internal ener gy of the nuclear system $E_{CM}$ and on the magnitude of the three-moment um transfer $Q$:\n$$\n\\frac{d^3\\sigma}{d\\Omega^{\\\, \\prime} \\\; d E^ {\\\, \\prime}} \\\, = \\\,\n\\sum\\limits_{jk} \nv_{jk} \\left(E\, \\thet a^{\\\, \\prime} \, E^{\\\, \\prime} \\right)\n \\\, R_{jk} \\left( E_{CM} \, Q \\right) \\\, .\n$$ \nSince the $v_{jk}$ functions\, stemming from t he lepton matrix element\, are analytically known\, it is thus much more e fficient to calculate just the response functions on a sufficiently dense two dimensional grid in the $\\left( E_{CM} \, Q \\right) $ plane and use interpolations to obtain these values of the response functions which are needed to compute $\\sigma_{tot} (E) $ at a required energy $E$.\nNote als o that in the case of the neutral current driven reactions\, exactly the s ame response functions can be used to obtain cross sections with neutrinos and antineutrinos. This approach has been already successfully tested for the (anti)neutrino reactions on the deuteron and one example of the respo nse function\nfor the $\\nu(\\bar{\\nu}) +{^2}\\mathrm{H} \\rightarrow \\n u(\\bar{\\nu})+p+n$ reaction is shown in Fig. 1. The corresponding work fo r several reactions with the three-nucleon systems is in progress and will be reported at the conference. As in Ref. (5)\, also in the present calcu lations the single nucleon current from Ref. (6) and the AV18 two-nucleon potential (7) is employed.\n\n**References**\n(1) S. Nakamura\, T. Sato\, V. Gudkov\, and K. Kubodera\, Phys. Rev. C 63\, 034617 (2001)\;\nErratum: [Phys. Rev. C **73**\, 049904 (2006)]. \n(2) S. Nakamura *et al.*\, Nucl. Phys. A **707**\, 561 (2002)\;\nhttp://www-nuclth.phys.sci.osaka-u.ac.jp/t op/Netal/total/index.html. \n(3) G. Shen\, L. E. Marcucci\, J. Carlson\, S . Gandolfi\, and R. Schiavilla\, Phys. Rev. C **86**\, 035503 (2012). \n(4 ) A. Baroni and R. Schiavilla\, Phys. Rev. C **96**\, 014002 (2017). \n(5) J. Golak *et al.*\, Phys. Rev. C **98**\, 015501 (2018). \n(6) J. Golak * et al.*\, Phys. Rev. C **90**\, 024001 (2014). \n(7) R. B. Wiringa\, V. G. J. Stoks\, and R. Schiavilla\, Phys. Rev. C **51**\, 38 (1995).\n\nhttps: //indico.koza.if.uj.edu.pl/event/1/contributions/36/ LOCATION:Collegium Maius URL:https://indico.koza.if.uj.edu.pl/event/1/contributions/36/ END:VEVENT BEGIN:VEVENT SUMMARY:Recent results of the CKM angle γ measurement at LHCb and prospec t for Run III and Run IV DTSTART;VALUE=DATE-TIME:20190625T113000Z DTEND;VALUE=DATE-TIME:20190625T130000Z DTSTAMP;VALUE=DATE-TIME:20260609T214539Z UID:indico-contribution-1-106@indico.koza.if.uj.edu.pl DESCRIPTION:Speakers: Wojciech Krupa (AGH UST)\nThe CKM angle γ is the le ast precise measured parameter of the Unitary Triangle. Discrepancies betw een precise measurements of the CKM angle γ in the tree-level and loop do minated processes might provide evidence of New Physics - beyond the Stand ard Model. The value can be well determined by exploiting the interference between favored 𝑏→𝑐 and suppressed 𝑏→ 𝑢 transition amplit udes (e.g. 𝐵→𝐷𝐾 decay). Selected results of the Cabibbo-Kobayas hi-Maskawa (CKM) angle γ measurements\, with special attention for 𝐵 →𝐷𝐾 decays family\, obtained at the LCHb will be discussed. A quic k overview of the upgrade of the LHCb spectrometer and prospect for future measurements during Run III and Run IV at LHC will be also presented.\n\n https://indico.koza.if.uj.edu.pl/event/1/contributions/106/ LOCATION:Collegium Maius URL:https://indico.koza.if.uj.edu.pl/event/1/contributions/106/ END:VEVENT BEGIN:VEVENT SUMMARY:CPT violation\, entanglement and gravity in particle mixing DTSTART;VALUE=DATE-TIME:20190625T113000Z DTEND;VALUE=DATE-TIME:20190625T130000Z DTSTAMP;VALUE=DATE-TIME:20260609T214539Z UID:indico-contribution-1-31@indico.koza.if.uj.edu.pl DESCRIPTION:Speakers: Kyrylo Simonov ()\nWe show that the gravitational in teraction among the elements of a mixed particle system leads to the viola tion of the time-reversal (T) symmetry while the CP symmetry is preserved hence inducing a CPT symmetry violation. This violation is directly associ ated to the rising of the entanglement among the elements of the system. T his many-body effect\, which scales with the number of the elements in the system\, could have played a relevant role in the generation of the asymm etry between matter and antimatter in the first stages of the Universe. Ex periments\, based on Rydberg atoms confined in microtraps can simulate the mixing and the mutual interaction\, and could allow to test the presented mechanism.\n\nhttps://indico.koza.if.uj.edu.pl/event/1/contributions/31/ LOCATION:Collegium Maius URL:https://indico.koza.if.uj.edu.pl/event/1/contributions/31/ END:VEVENT BEGIN:VEVENT SUMMARY:A comparison study of analytical RBE models. DTSTART;VALUE=DATE-TIME:20190625T113000Z DTEND;VALUE=DATE-TIME:20190625T130000Z DTSTAMP;VALUE=DATE-TIME:20260609T214539Z UID:indico-contribution-1-32@indico.koza.if.uj.edu.pl DESCRIPTION:Speakers: Leszek Grzanka (IFJ PAN)\nAnalytical models of radio biological response in ion beams are used in studies on improving treatmen t planning in proton therapy. The best known models are Carabe [1]\, Weden berg [2] and McNamara [3]. They relate response of the system (i.e. cell s urvival) with beam characterication (kinetic energy\, linear energy transf er\, ion type) and tissue radiosensitivity expressed by parameters of line ar quadratic model (alfa\, beta). These approaches has been used in studie s of variable RBE in proton therapy. Application of these models require time-consuming and complex simulation of particle transport to establish s patial distribution of dose and linear energy transfer (LET). \n\nWe propo se a simplified approach where particle transport is replaced by two analy tical models applicable to pencil-beam dose delivery systems. Spatial dose distribution is calculated using the Bortfeld [4] model and LET distribut ion according to Wilkens [5] model. Both models assume power-law approxima tion of energy loss per unit distance are valid for uniform media. The pre dictions are within 2-3% agreement with particle transport simulations usi ng Monte-Carlo codes.\n\nAll models were implemented in open-source progra m code library called **libamtrack** [6]. The library is written using ANS I C and is freely available on Github service https://github.com/libamtrac k. It is designed as a shared library to be used by scientific programmers in their own modelling codes. \nTo facilitate the use by regular users a web interface was provided\, exploiting modern technologies capable of com piling C code directly into JavaScript and WebAssembly languages. This web interface offers calculation of dose\, LET and RBE as a function of depth for various media and beam configuration.\n\nCombination of analytical mo dels describing proton beam properties (Bortfeld\, Wilkens) with radiobiol ogical response models offers a way for fast model tuning and comparison i n uniform media. We believe that the public implementation in the open-sou rce library extended with user-friendly web interface may lead to wider ap plication and futher development of analytical models in proton therapy.\n \n[1] Carabe\, Alejandro\, et al. "Range uncertainty in proton therapy due to variable biological effectiveness." Physics in Medicine & Biology 57.5 (2012): 1159.\n[2] Wedenberg\, Minna\, Bengt K. Lind\, and Björn Hårdem ark. "A model for the relative biological effectiveness of protons: the ti ssue specific parameter α/β of photons is a predictor for the sensitivit y to LET changes." Acta oncologica 52.3 (2013): 580-588.\n[3] McNamara\, A imee L.\, Jan Schuemann\, and Harald Paganetti. "A phenomenological relati ve biological effectiveness (RBE) model for proton therapy based on all pu blished in vitro cell survival data." Physics in Medicine & Biology 60.21 (2015): 8399.\n[4] Bortfeld\, Thomas. "An analytical approximation of the Bragg curve for therapeutic proton beams." Medical physics 24.12 (1997): 2 024-2033.\n[5] Wilkens\, Jan J.\, and Uwe Oelfke. "Analytical linear energ y transfer calculations for proton therapy." Medical physics 30.5 (2003): 806-815.\n[6] Greilich\, Steffen\, et al. "Amorphous track models: a numer ical comparison study." Radiation Measurements 45.10 (2010): 1406-1409.\n\ nhttps://indico.koza.if.uj.edu.pl/event/1/contributions/32/ LOCATION:Collegium Maius URL:https://indico.koza.if.uj.edu.pl/event/1/contributions/32/ END:VEVENT BEGIN:VEVENT SUMMARY:The study of human tissue by the positron and positronium probes DTSTART;VALUE=DATE-TIME:20190627T095000Z DTEND;VALUE=DATE-TIME:20190627T101500Z DTSTAMP;VALUE=DATE-TIME:20260609T214539Z UID:indico-contribution-1-108@indico.koza.if.uj.edu.pl DESCRIPTION:Speakers: Bożena Zgardzińska (Institute of Physics\, Maria C urie-Sklodowska University)\nThe Positron Annihilation Lifetime Spectrosco py (PALS) was used to investigate the uterine leiomyomatis\, ovary\, ovidu ct and normal tissues taken from patients after surgery\, hysterectomy. Th e pilot studies have shown that a positron probe\, commonly used in the PE T imaging\, may be useful in identifying not only the position of affected tisssue\, but also the degree and type of these disease. Significant diff erences between normal and diseased tissues in all PALS parameters (lifeti mes and intensities) were observed. For all studied patients it was found that the values of the free annihilation and orthopositronium lifetime are larger for the tumorous tissues than for the healthy ones.\n\nhttps://ind ico.koza.if.uj.edu.pl/event/1/contributions/108/ LOCATION:Collegium Maius URL:https://indico.koza.if.uj.edu.pl/event/1/contributions/108/ END:VEVENT BEGIN:VEVENT SUMMARY:Patient dose evaluation in digital breast tomosynthesis DTSTART;VALUE=DATE-TIME:20190625T113000Z DTEND;VALUE=DATE-TIME:20190625T130000Z DTSTAMP;VALUE=DATE-TIME:20260609T214539Z UID:indico-contribution-1-116@indico.koza.if.uj.edu.pl DESCRIPTION:Speakers: Kamil Kisielewicz (Centre of Oncology\, Maria Sklodo wska-Curie Memorial Institute\, Krakow Branch\, Poland)\nBreast cancer (BC )\, a most common women malignancy\, is often screened by mammography and ultrasound exams. Mammography provides early micro-calcification recogniti on\, that is important for further cancer diagnosis. The imaging method-of -choice in the case of BC is an X-ray mammography (MG)\, also with the use of high-resolution digital modality. However\, a planar MG has some limit ations in terms of its sensitivity\, especially in patients with dense and treated breasts. Moreover\, MG contributes to the overall radiation burde n of patients\, and it is known that the risk for breast cancer is correla ted with an exposure on ionizing radiation due to medical imaging. Patient s\, for whom MG study does not give a clear answer or is impossible to int erpret\, are often further diagnosed by contrast-enhanced breast magnetic resonance imaging (MRI). MRI is currently regarded as the most sensitive B C detection technique. On the other hand\, it is limited by higher costs a nd lower availability and it provides higher rates of false positive cases . Relatively new method applied in breast neoplasms detection is digital t omosynthesis\, introduced in 2011.\nClassical planar (2D) mammography imag e characterized by a superposition of all breast structures projected onto the detector plane making difficult to recognize suspected areas. Tomosyn thesis is a modality in which a series of breast exposures are performed a t different angles (usually 9). Acquired images are subsequently used to r econstruct thin (1 mm) slices\, which eliminates the problem of overlappin g breast structures. This makes it easier to detect potentially suspicious changes\, which can additionally be supported by specialist software such as CAD (Computer Aided Diagnosis).\nImage and dosimetry data were used fo r studies performed in the digital tomosynthesis mode at the Department of Radiology and Imaging Diagnostics. So far\, data from 219 patients have b een collected and analyzed in a total of 357 CC / MLO projections in tomos ynthesis mode. Additionally 70 of the patients had also classic 2D examina tion used as a reference in terms of dose.\nDepending of the projection an d mammography mode (2D-planar\, tomosynthesis)\, the average glandular dos e (AGD) increases with increasing breast thickness. It was observed that t he increase of AGD is much faster in patients undergoing tomosynthesis. AG D for thomosynthesis was 30-60% higher depending on breast thickness\, co mparing with 2D examination (i.e. 1\,36 vs 1\,75 mGy for 63-72mm compresse d breast thickness). \nThe diagnostic benefits of 3D imaging compensate fo r the risk associated with increasing the glandular dose in patients\, esp ecially in groups where the breast thickness after compression does not ex ceed 63mm.\n\nhttps://indico.koza.if.uj.edu.pl/event/1/contributions/116/ LOCATION:Collegium Maius URL:https://indico.koza.if.uj.edu.pl/event/1/contributions/116/ END:VEVENT BEGIN:VEVENT SUMMARY:Shapes of the free volume holes in amorphous polymers as estimated by positron annihilation lifetime spectroscopy DTSTART;VALUE=DATE-TIME:20190628T063000Z DTEND;VALUE=DATE-TIME:20190628T065500Z DTSTAMP;VALUE=DATE-TIME:20260609T214539Z UID:indico-contribution-1-63@indico.koza.if.uj.edu.pl DESCRIPTION:Speakers: Giovanni Consolati (Department of Aerospace Science and Technology\, Politecnico di Milano)\nIntermolecular spaces in polymer chains form the so called free volume\, a useful concept to understand mec hanical and transport properties of polymers. Quantification of the free v olume can be obtained theoretically\, using appropriate lattice models\, a s well as experimentally\, through suitable probes. Among these\, positron ium (Ps) has become widespread due to the non-destructive character of the technique\, the capability of Ps to preferentially localize inside the fr ee volume holes and the correlation between the Ps lifetime and the size o f the holes. In most of the investigations the cavity is approximated to a sphere. However\, this may bias the evaluation of the free volume fractio n. We show that by coupling results from Ps lifetime and specific volume m easurements for amorphous polymers at equilibrium and the predictions of t he Simha-Somcynsky equation of state it is possible to shed light on the d imension of the holes\, on their morphology as well as on their expansion with temperature. In fact\, in spite of their irregular shape\, non-spher ical cavities are generally found to give a better agreement between the t heoretical free volume fraction and the experimental results.\n\nhttps://i ndico.koza.if.uj.edu.pl/event/1/contributions/63/ LOCATION:Collegium Maius URL:https://indico.koza.if.uj.edu.pl/event/1/contributions/63/ END:VEVENT BEGIN:VEVENT SUMMARY:Using MicroPattern Gas Detectors (MPGD) with modern imaging CMOS s ensors for obtaining inexpensive radiation imaging detectors DTSTART;VALUE=DATE-TIME:20190625T113000Z DTEND;VALUE=DATE-TIME:20190625T130000Z DTSTAMP;VALUE=DATE-TIME:20260609T214539Z UID:indico-contribution-1-100@indico.koza.if.uj.edu.pl DESCRIPTION:Speakers: Kostiantyn Sakhatskyi (TSNUK - Taras Shevchenko Nati onal University of Kyiv)\nThe work is devoted to using MicroPattern Gas De tectors with modern imaging CMOS sensors for obtaining inexpensive radiati on imaging detectors. Last years there is fast progress of new cheap CMOS sensors. It is allows to obtain new quality of radiation image detector sy stems on the base of "MPGD - CMOS sensor" electronics.\n\nhttps://indico.k oza.if.uj.edu.pl/event/1/contributions/100/ LOCATION:Collegium Maius URL:https://indico.koza.if.uj.edu.pl/event/1/contributions/100/ END:VEVENT BEGIN:VEVENT SUMMARY:FTAB - small form factor and versatile board for J-PET detector DTSTART;VALUE=DATE-TIME:20190627T082500Z DTEND;VALUE=DATE-TIME:20190627T084500Z DTSTAMP;VALUE=DATE-TIME:20260609T214539Z UID:indico-contribution-1-149@indico.koza.if.uj.edu.pl DESCRIPTION:Speakers: Marek Pałka ()\nA design of electronics for detecto r system frequently requires to incorporate a few different stages: signal amplification\, sampling in voltage or time domain and finally producing a packet containing all required data. Normally each of this stage is inco rporated into a single module. However nowadays\, in attempt of miniaturiz ation of existing systems\, these stages are being meld. During this talk a Front-End\, TDC and Acquisition Board (FTAB) will be presented. This com pact board\, which size is just 16x7 cm\, is capable of measuring 102 fast analogue signals. It measures times when signals are crossing predefined thresholds\, which are set individually for each channel. The average RMS of time measurements amounts to 30 ps. Digitized signals are then combined to form a packet\, which is sent through 6Gb/s optical connection. The ta lk will focus on demonstrating the FTAB architecture\, its versatile capab ilities and resent results.\n\nhttps://indico.koza.if.uj.edu.pl/event/1/co ntributions/149/ LOCATION:Collegium Maius URL:https://indico.koza.if.uj.edu.pl/event/1/contributions/149/ END:VEVENT BEGIN:VEVENT SUMMARY:Study of prompt gamma imaging using heavy scintillating fibers for future application in proton therapy DTSTART;VALUE=DATE-TIME:20190625T113000Z DTEND;VALUE=DATE-TIME:20190625T130000Z DTSTAMP;VALUE=DATE-TIME:20260609T214539Z UID:indico-contribution-1-40@indico.koza.if.uj.edu.pl DESCRIPTION:Speakers: Majid Kazemi Kozani (Jagiellonian University Krakow) \nThe aim of the project is the development of a method for on-line monito ring of dose distribution in proton therapy based on detection of prompt g amma (PG) radiation emitted from a patient during irradiation. During this project\, an imaging prototype of Compton Camera (CC) based on heavy scin tillating fibers together with the corresponding data handling and an imag e reconstruction framework will be presented in the future. Currently\, co mputer code is being developed to implement algorithms which will be neede d for image reconstruction from the detection setup\, comparing obtained s imulation results for different design options. In this work\, the reconst ructed images using back-projection and list-mode MLEM are evaluated. A sp atial resolution of 5 mm FWHM for 22Na point sources in 20 cm distance whi ch were reconstructed by means of 10 iterations of list-mode MLEM has been achieved by Geant4 simulation results. Moreover\, data from laboratory me asurements and comparing with simulated data will address the challenge of practical Compton imaging for proton therapy in the future work.\n\nhttps ://indico.koza.if.uj.edu.pl/event/1/contributions/40/ LOCATION:Collegium Maius URL:https://indico.koza.if.uj.edu.pl/event/1/contributions/40/ END:VEVENT BEGIN:VEVENT SUMMARY:The start of the Belle II experiment at the SuperKEKB e+e- factory DTSTART;VALUE=DATE-TIME:20190626T091000Z DTEND;VALUE=DATE-TIME:20190626T093500Z DTSTAMP;VALUE=DATE-TIME:20260609T214539Z UID:indico-contribution-1-88@indico.koza.if.uj.edu.pl DESCRIPTION:Speakers: Bostjan Golob (Univ. of Ljubljana & JSI)\nWe will re view the status of the Belle II experiment at the SuperKEKB e+e- collider and present some recent results.\n\nhttps://indico.koza.if.uj.edu.pl/event /1/contributions/88/ LOCATION:Collegium Maius URL:https://indico.koza.if.uj.edu.pl/event/1/contributions/88/ END:VEVENT BEGIN:VEVENT SUMMARY:Positronium for foundamental studies DTSTART;VALUE=DATE-TIME:20190625T070500Z DTEND;VALUE=DATE-TIME:20190625T073000Z DTSTAMP;VALUE=DATE-TIME:20260609T214539Z UID:indico-contribution-1-65@indico.koza.if.uj.edu.pl DESCRIPTION:Speakers: Roberto Sennen Brusa (Dep. of Physics\, University o f Trento and INFN-TIFPA)\nThe fundamental interaction of positron with mat ter and the mechanism of positronium formation are briefly introduced. The n\, recent advances in fundamental experiment with many positrons bunched beam for the production of positronium in vacuum are presented: formation of antihydrogen by charge exchange\, excitation of positronium in long liv ed states. Planned running experiment with long lived positronium at CERN and in the Trento antimatter laboratory are detailed.\n\nhttps://indico.ko za.if.uj.edu.pl/event/1/contributions/65/ LOCATION:Collegium Maius URL:https://indico.koza.if.uj.edu.pl/event/1/contributions/65/ END:VEVENT BEGIN:VEVENT SUMMARY:Non-strange dibaryons studied in coherent double neutral-meson pho toproduction on the deuteron DTSTART;VALUE=DATE-TIME:20190625T113000Z DTEND;VALUE=DATE-TIME:20190625T130000Z DTSTAMP;VALUE=DATE-TIME:20260609T214539Z UID:indico-contribution-1-45@indico.koza.if.uj.edu.pl DESCRIPTION:Speakers: Takatsugu Ishikawa (Research Center for Electron Pho ton Science\, Tohoku University)\nThe search for non-strange $B=2$ (dibary on) bound/resonance states has a long history. The dibaryon state is of in terest\, which can be a molecule consisting of two baryons or a spatially compact hexaquark object. The $\\gamma d\\to \\pi^0\\pi^0 d$ reaction has been experimentally investigated at incident energies ranging from 0.58 to 1.2 GeV to study non-strange dibaryons. The angular distributions of deut eron emission in the $\\gamma d$ center-of-mass cannot be reproduced by qu asi-free production of neutral pions followed by deuteron coalescence. Add itionally a 2.14-GeV peak is observed in the $\\pi^0 d$ invariant mass dis tribution. These suggest a sequential process such as $\\gamma d \\to R_{\ \rm IS}\\to \\pi^0 R_{\\rm IV} \\to \\pi^0 \\pi^0d$. We discuss the newly onserved two isoscalar dibaryons ($R_{\\rm IS}$) and an isovector dibaryon ($R_{\\rm IV}$) observed in the $\\pi^0\\pi^0d$ and $\\pi^0d$ channels\, respectively. We also show the $\\gamma d \\to \\pi^0\\eta d$ reaction.\n\ nhttps://indico.koza.if.uj.edu.pl/event/1/contributions/45/ LOCATION:Collegium Maius URL:https://indico.koza.if.uj.edu.pl/event/1/contributions/45/ END:VEVENT BEGIN:VEVENT SUMMARY:The pion-nucleon sigma term from pionic atoms DTSTART;VALUE=DATE-TIME:20190624T144000Z DTEND;VALUE=DATE-TIME:20190624T150500Z DTSTAMP;VALUE=DATE-TIME:20260609T214539Z UID:indico-contribution-1-66@indico.koza.if.uj.edu.pl DESCRIPTION:Speakers: Avraham Gal (Racah Institute of Physics\, The Hebre w University of Jerusalem)\nEarly work suggested that the in-medium pion-n ucleon threshold isovector amplitude b1 gets renormalized in pionic atoms by about 30% away from its free-space value [1]. Weise attributed such ren ormalization to the leading low-density decrease of the in-medium quark co ndensate and the pion decay constant in terms of the pion-nucleon sigma te rm [2]. Subsequent work triggered by data from `deeply bound states' in pi onic atoms supported this idea [3]. Accepting the validity of this approac h\, we extracted the pion-nucleon sigma term from a large-scale fit of pio nic-atom level shift and width data across the periodic table. Our fitted value for sigma is (57+/-7) MeV and is robust with respect to variation of pion-nucleon interaction terms other than b1 [4]. This value of sigma agr ees with values obtained in several recent studies based on near-threshold pion-nucleon phenomenology [5]\, but sharply disagrees with values obtain ed in recent direct lattice QCD calculations [6]. \n\n[1] Reviewed by C.J. Batty\, E. Friedman\, A. Gal\, Phys. Rep. 287 (1997) 385. \n[2] W. Weise\ , Acta Phys. Pol. B 31 (2000) 2715\, Nucl. Phys. A 690 (2001) 98c. \n[3] R eviewed by E. Friedman\, A. Gal\, Phys. Rep. 452 (2007) 89. \n[4] E. Fried man\, A. Gal\, Phys. Lett. B 792 (2019) 340. \n[5] Reviewed by J. Ruiz de Elvira\, et al.\, J. Phys. G 45 (2018) 024001. \n[6] Reviewed by N. Yamana ka\, et al. (JLQCD)\, Phys. Rev. D 98 (2018) 054516.\n\nhttps://indico.koz a.if.uj.edu.pl/event/1/contributions/66/ LOCATION:Collegium Maius URL:https://indico.koza.if.uj.edu.pl/event/1/contributions/66/ END:VEVENT BEGIN:VEVENT SUMMARY:Modelling the horizontal polarization lifetime curves for a storag e ring EDM experiment DTSTART;VALUE=DATE-TIME:20190625T113000Z DTEND;VALUE=DATE-TIME:20190625T130000Z DTSTAMP;VALUE=DATE-TIME:20260609T214539Z UID:indico-contribution-1-156@indico.koza.if.uj.edu.pl DESCRIPTION:Speakers: Swathi Karanth (Jagiellonian University)\nOne of the great mysteries in the natural sciences is why matter dominates over anti matter in the visible universe. The breaking of the combined charge conjug ation and parity symmetries in the Standard Model of particle physics is i nsufficient to explain this. Therefore\, other sources of CP-violations ar e sought\, and these could manifest in the Electric Dipole Moments (EDM) o f fundamental particles.\n\nThe JEDI (Juelich Electric Dipole moment Inves tigations) Collaboration works towards the direct measurement of the EDM o f charged hadrons (spin-polarized protons and deuterons) in a storage ring . The observable is the minuscule vertical polarization buildup starting f rom a horizontally polarized beam\, caused by the interaction of the EDM w ith a radial electric field. This requires the polarized beam to possess a long horizontal polarization lifetime. This was previously achieved at th e Cooler Synchrotron (COSY). Multiple models were applied to explain the s hape of the polarization lifetime curve. The underlying idea of these mode ls and the conclusion drawn from this will be presented.\n\nhttps://indico .koza.if.uj.edu.pl/event/1/contributions/156/ LOCATION:Collegium Maius URL:https://indico.koza.if.uj.edu.pl/event/1/contributions/156/ END:VEVENT BEGIN:VEVENT SUMMARY:How may quantum computing enhance cancer detection? DTSTART;VALUE=DATE-TIME:20190625T063000Z DTEND;VALUE=DATE-TIME:20190625T070500Z DTSTAMP;VALUE=DATE-TIME:20260609T214539Z UID:indico-contribution-1-92@indico.koza.if.uj.edu.pl DESCRIPTION:Speakers: Beatrix Hiesmayr (University of Vienna)\nNew cutting edge technology allows obtaining the complete information from high energ etic photons undergoing Compton scatterings. This in turn enables for the first time to read out the quantum information from the molecular environm ent for which recent pilot studies suggest that this new kind of informati on plays a role in detection of cancer in humans.\n\nhttps://indico.koza.i f.uj.edu.pl/event/1/contributions/92/ LOCATION:Collegium Maius URL:https://indico.koza.if.uj.edu.pl/event/1/contributions/92/ END:VEVENT BEGIN:VEVENT SUMMARY:Study of angular correlations in the ortho-positronium annihilatio n with the J-PET detector for the search of CPT symmetry violation DTSTART;VALUE=DATE-TIME:20190625T113000Z DTEND;VALUE=DATE-TIME:20190625T130000Z DTSTAMP;VALUE=DATE-TIME:20260609T214539Z UID:indico-contribution-1-175@indico.koza.if.uj.edu.pl DESCRIPTION:Speakers: Muhsin Mohammed (Jagiellonian University)\nThe test of the three discrete symmetries of quantum mechanics under the chargeconj ugation (C)\, parity transformation (P)\, and time reversal (T) is one of the most important issues in nuclear and elementary particle physics. All of three discrete symmetries are violated\, singly or in pairs with differ ent orders. The CPT combination of these three symmetries seems to be cons erved in nature so far.\n\nStudies of the observables violating the combin ed CPT symmetry constitute precise tests of the Standard Model. However\, The CP-symmetry violation was observed to date only for systems involving quarks\, raising the importance of searches its manifestations e.g. in pur ely leptonic systems. The 3 decay of spin-aligned ortho-positronium atoms (o-Ps) can be used to test CPT invariance in such a purely leptonic system . We search for CPT violating decay processes in positronium\, using the a ngular correlation of $\\overrightarrow{S}$. $(\\overrightarrow{k}_{1} \\t imes \\overrightarrow{k}_{2})$ where $\\overrightarrow{S}$ is the positron ium spin and $\\overrightarrow{k}_{1}$\, $\\overrightarrow{k}_{2}$ are the directions of the most energetic positronium decay photons.\n\nThe Jagiel lonian Positron Emission Tomograph (J-PET) detection system enables experi mental tests of both CP and CPT symmetries through measurement of the expe ctation values of angular correlation operators odd under these transforma tions and constructed from the spin vector of the ortho-positronium atom\, the co-planar momentum vectors of 3 gamma photons originating from the de cay of the positronium atom\, and the linear polarization direction of ann ihilation photons.\n\nPrecise experimental symmetry tests with J-PET are p ossible using the trilateration based reconstruction technique of 3 ortho- positronium decays and a positronium production chamber including a highly porous material target\, whose setup allows for determining the ortho-pos itronium spin liner polarization without the use of an external magnetic f ield.\n\nhttps://indico.koza.if.uj.edu.pl/event/1/contributions/175/ LOCATION:Collegium Maius URL:https://indico.koza.if.uj.edu.pl/event/1/contributions/175/ END:VEVENT BEGIN:VEVENT SUMMARY:Investigation of magnetic field inside Belle2 spectrometer DTSTART;VALUE=DATE-TIME:20190625T113000Z DTEND;VALUE=DATE-TIME:20190625T130000Z DTSTAMP;VALUE=DATE-TIME:20260609T214539Z UID:indico-contribution-1-44@indico.koza.if.uj.edu.pl DESCRIPTION:Speakers: Szymon Bacher (IFJ PAN)\nThe Belle II detector\, ded icated to investigation of B mesons properties\, started data acquisition on SuperKEKB e+e- collider this year. Precise measurement of particle mome ntum in 1.5T magnetic field is crucial for the success of physics program . The measurement of the field inside tracking detector volume was perform ed in collaboration between CERN\, DESY\, IFJ PAN and KEK labs. Field itse lf is complex\, as it is a product of combined effect of main analyzing so lenoid and system of compensating solenoids.\nCombination of two robotized measurement campaigns and simulation is used to create final field map fo r track reconstruction. Mass distribution of known particles is used to as sess field map quality.\n\nhttps://indico.koza.if.uj.edu.pl/event/1/contri butions/44/ LOCATION:Collegium Maius URL:https://indico.koza.if.uj.edu.pl/event/1/contributions/44/ END:VEVENT BEGIN:VEVENT SUMMARY:Towards modular total-body PET from plastic scintillators DTSTART;VALUE=DATE-TIME:20190627T080500Z DTEND;VALUE=DATE-TIME:20190627T082500Z DTSTAMP;VALUE=DATE-TIME:20260609T214539Z UID:indico-contribution-1-176@indico.koza.if.uj.edu.pl DESCRIPTION:Speakers: Szymon Niedźwiecki (Jagiellonian University)\nAll c urrently used PET scanners are based on crystal scintillators readout\, wh ere detectors are placed radially in rings surrounding a patient's body. J -PET group is working on scanner utilizing plastic scintillators to detect gamma quanta. Since light attenuation of plastics is much lower than the one of crystals\, modules with plastic scintillators can be orientated alo ng patients body. First full scale prototype of J-PET scanner was already assembled and is providing data for both medical and fundamental physics s tudies. The next modular prototype is commissioned now. Modularity will m ake the change of chamber geometry and portability of whole system possibl e. In this contribution a general design and current status of the assembl y of the modular J-PET will be presented as well as expected performance o f total-body PET scanner based on simulations.\n\nhttps://indico.koza.if.u j.edu.pl/event/1/contributions/176/ LOCATION:Collegium Maius URL:https://indico.koza.if.uj.edu.pl/event/1/contributions/176/ END:VEVENT BEGIN:VEVENT SUMMARY:Overview of the J-PET analysis and simulation software DTSTART;VALUE=DATE-TIME:20190627T125500Z DTEND;VALUE=DATE-TIME:20190627T131500Z DTSTAMP;VALUE=DATE-TIME:20260609T214539Z UID:indico-contribution-1-150@indico.koza.if.uj.edu.pl DESCRIPTION:Speakers: Wojciech Krzemień (National Centre for Nuclear Rese arch)\nModern TOF-PET scanner systems require high-speed computing resourc es for efficient data processing\, monitoring and image reconstruction. In this article we present the data flow and software architecture for the novel total-body TOF-PET scanner developed by the J-PET collaboration. The reconstruction framework\, Monte Carlo simulations tools together with se veral software activities dedicated for image reconstruction and new imagi ning techniques will be presented.\n\nhttps://indico.koza.if.uj.edu.pl/eve nt/1/contributions/150/ LOCATION:Collegium Maius URL:https://indico.koza.if.uj.edu.pl/event/1/contributions/150/ END:VEVENT BEGIN:VEVENT SUMMARY:Calculations of mesic nuclei DTSTART;VALUE=DATE-TIME:20190625T162500Z DTEND;VALUE=DATE-TIME:20190625T165000Z DTSTAMP;VALUE=DATE-TIME:20260609T214539Z UID:indico-contribution-1-51@indico.koza.if.uj.edu.pl DESCRIPTION:Speakers: Jiri Mares (Nuclear Physics Institute of the Czech A cademy of Sciences)\nThis contribution reviews recent studies of $K^-$ and $\\eta$ nuclear quasi-bound states performed by the Jerusalem-Prague Coll aboration using potentials derived from state-of-the-art chirally motivate d meson-baryon coupled-channel interaction models. \n\nEnergy and density dependence of the scattering amplitudes\, implications of self-consistent treatment\, as well as the role of meson multi-nucleon interactions are di scussed. Calculations of few-body as well as many-body nuclear systems are presented.\n\nhttps://indico.koza.if.uj.edu.pl/event/1/contributions/51/ LOCATION:Collegium Maius URL:https://indico.koza.if.uj.edu.pl/event/1/contributions/51/ END:VEVENT BEGIN:VEVENT SUMMARY:Biological dose calculations with variable RBE for proton therapy using Monte Carlo code FRED DTSTART;VALUE=DATE-TIME:20190626T133000Z DTEND;VALUE=DATE-TIME:20190626T135000Z DTSTAMP;VALUE=DATE-TIME:20260609T214539Z UID:indico-contribution-1-9@indico.koza.if.uj.edu.pl DESCRIPTION:Speakers: Jan Gajewski (Institute of Nuclear Physics Polish Ac ademy of Sciences)\nThe Monte Carlo (MC) codes are extensively used to sup port proton therapy clinical practice due to high accuracy of dose calcula tions in heterogeneous media. The MC platforms offer different methods to model radiobiological effectiveness (RBE) and to calculate biological dose (constant RBE\, biophysical and phenomenological models). Such functional ity allows to quantify the influence of the variable RBE on biological dos e distribution in human body.  \n\nCurrently available clinical treatment planning systems (TPS) for proton beam therapy (PBT) allow for biological dose calculation only with constant RBE=1.1. The recent studies show that the use of RBE=1.1 can lead to inaccurate calculations of biological dose deposited in patient body (Giovannini et al. Radiation Oncology (2016) 11 :68\, Chen et al. Phys. Med. Biol. (2018) 63 195001)\, mostly because of d iverse tissue radiosensitivity and proton beam quality.\n\nThe GPU-acceler ated MC code FRED (Fast paRticle thErapy Dose evaluator) offers dose calcu lation with various RBE models (McNamara\, Carabe\, Wedenberg) accounting for variation of linear energy transfer (LET) of proton beam and RBE model parametrization. FRED was experimentally validated in the Krakow PBT cent re showing maximum dose difference up to 2% with respect to measurements. Based on treatment plans of head and neck patients treated in Krakow\, we compare biological dose distributions calculated with FRED MC using differ ent RBE models in order to systematically quantify physical and biological dose uncertainties accounting for variable RBE. The dose delivered to the planning target volume (PTV) and organs at risk (OARs) were evaluated. \n \nThe quantification of dose uncertainties in PBT using FRED code and RBE models will be discussed. The information about the influence of variable RBE on dose deposited in patients can eventually improve the quality of PB T treatment.\n\nhttps://indico.koza.if.uj.edu.pl/event/1/contributions/9/ LOCATION:Collegium Maius URL:https://indico.koza.if.uj.edu.pl/event/1/contributions/9/ END:VEVENT BEGIN:VEVENT SUMMARY:Digital spectrometer for coincidence Doppler broadening spectrosc opy: application for study of positron annihilation in flight DTSTART;VALUE=DATE-TIME:20190628T072000Z DTEND;VALUE=DATE-TIME:20190628T074500Z DTSTAMP;VALUE=DATE-TIME:20260609T214539Z UID:indico-contribution-1-67@indico.koza.if.uj.edu.pl DESCRIPTION:Speakers: Jakub Cizek (Faculty of Mathematics and Physics\, Ch arles University)\nA novel digital coincidence Doppler broadening (DCDB) s pectrometer enables to achieve an extremely low background in the spectrum . This is crucial for investigation of rare annihilation events as positro n annihilation in flight or 3-gamma decay of positronium. In the present w ork the DCDB spectrometer was employed for investigations of annihilation in flight phenomenon using (i) monoenergetic positrons in a variable energ y slow positron beam\, (ii) fast positrons emitted by 68Ge/68Ga positron g enerator and (iii) fast positrons emitted by 44Ti/44Sc positron generator. \nAn energetic positron implanted into a solid matter loses rapidly its k inetic energy by elastic and inelastic collisions with electrons and reach es quickly thermal equilibrium with the surrounding medium. As a consequen ce positrons are annihilated predominantly in the thermalized state. Howev er\, a small fraction of positrons is annihilated before reaching the ther mal equilibrium. These annihilation-in-flight events differ significantly from annihilations of thermalized positrons because in case of annihilatio n-in-flight events the positron momentum is significant and exceeds the mo mentum of electrons. \nThe annihilation-in-flight contribution in a two di mensional gamma ray energy spectrum fills a ‘cup-like’ area delimited by a hyperbolic curve imposed by the conservation of momentum and energy i n the annihilation process and a ‘cut-off line’ corresponding to the k inetic energy of positrons. With decreasing positron energy the area of an nihilation-in-flight contributions becomes smaller and smaller and finally it disappears completely for slow positrons with energies below ~100 eV. Energetic positrons are able to penetrate the Coulomb potential of the nuc leus and annihilate with the deep core electrons. Hence\, analysis of the outer edge of the hyperbolic annihilation-in-flight contribution in the tw o-dimensional energy spectrum provides information about the momentum dist ribution of core electrons in the target.\n\nhttps://indico.koza.if.uj.edu .pl/event/1/contributions/67/ LOCATION:Collegium Maius URL:https://indico.koza.if.uj.edu.pl/event/1/contributions/67/ END:VEVENT BEGIN:VEVENT SUMMARY:Performance characterization and human imaging experience with the long axial field-of-view PennPET Explorer Whole-body Imager DTSTART;VALUE=DATE-TIME:20190627T070500Z DTEND;VALUE=DATE-TIME:20190627T073000Z DTSTAMP;VALUE=DATE-TIME:20260609T214539Z UID:indico-contribution-1-91@indico.koza.if.uj.edu.pl DESCRIPTION:Speakers: Suleman Surti (University of Pennsylvania)\nThe curr ent generation of commercial PET scanners has excellent performance and di agnostic image quality\, but the system sensitivity and dynamic imaging ca pability are limited by the scanner’s axial length. In recent years ther e has been an interest in developing whole-body PET scanners with much lon ger AFOV that not only increase the system sensitivity but can also image the whole-body of a patient without bed translation. An important outcome of very high sensitivity is the potential to significantly reduce routine clinical scan times which can be beneficial in reducing patient motion art ifacts and increase patient throughput. Alternately\, the injected dose ca n be reduced that is beneficial in areas such as pediatric imaging and ser ial imaging of patients for monitoring response to therapy. Whole-body ima ging with large axial coverage will allow one to perform dynamic imaging f or pharmacokinetic studies over multiple organs. In this presentation we w ill present ongoing progress in our development and performance characteri zation of the PennPET Explorer imager. We will also present our early huma n imaging experience demonstrating the promise of longer axial FOV systems for both clinical and research investigations.\n\nhttps://indico.koza.if. uj.edu.pl/event/1/contributions/91/ LOCATION:Collegium Maius URL:https://indico.koza.if.uj.edu.pl/event/1/contributions/91/ END:VEVENT BEGIN:VEVENT SUMMARY:Glass transition in smectic e phase of alkyl-isothiocyanato-biphen yls DTSTART;VALUE=DATE-TIME:20190628T095500Z DTEND;VALUE=DATE-TIME:20190628T101500Z DTSTAMP;VALUE=DATE-TIME:20260609T214539Z UID:indico-contribution-1-103@indico.koza.if.uj.edu.pl DESCRIPTION:Speakers: Ewa Dryzek (Institute of Nuclear Physics Polish Acad emy of Sciences\, PL-31342 Kraków\, Poland)\nIn recent years\, Positron A nnihilation Lifetime Spectroscopy (PALS) has been extensively utilized in the studies of free volume characteristics in polymers but also low molecu lar weight glass formers. Efforts are made to connect the temperature chan ges of the o-Ps lifetime with changes of structure and dynamics in such sy stems. This can shed light on the nature of the glass transition which con tinues to be a subject of many studies. However\, the phenomenon of vitrif ication in mesophases having partial long-range positional and/or orientat ional ordering of molecules is much less studied. Moreover\, the majority of glass transition models concern only isotropic liquids. \nIn this prese ntation we report on application of the two order parameter model of glass transition proposed by Tanaka [1] to description of temperature dependenc ies of ortho-positronium lifetime and intensity of this component obtained for two members of 4-n-alkyl-4-isothiocyanatobiphenyl homologous serie s with 4 and 6 carbon atom in the alkyl chain [2\,3]. The PALS dependencie s will be compared with the results of the dielectric spectroscopy and qua sielastic neutron scattering (QENS) measurements in search of the glass tr ansition signatures.\n \n[1] H. Tanaka\, J. Phys.: Condens. Matter 10( 199 8) L207\n[2] E. Dryzek\, E. Juszyńska\, R. Zaleski\, B. Jasińska\, M. Go rgol\, M. Massalska-Arodź\,\nPhys. Rev. E\, 88 (2013) 022504 (2013)\n[3] E. Dryzek\, E. Juszyńska-Gałązka\, Phys. Rev. E 93 (2016) 022705\n\nhtt ps://indico.koza.if.uj.edu.pl/event/1/contributions/103/ LOCATION:Collegium Maius URL:https://indico.koza.if.uj.edu.pl/event/1/contributions/103/ END:VEVENT BEGIN:VEVENT SUMMARY:New concepts in tests of the Pauli Exclusion Principle in bulk mat ter DTSTART;VALUE=DATE-TIME:20190625T092000Z DTEND;VALUE=DATE-TIME:20190625T094000Z DTSTAMP;VALUE=DATE-TIME:20260609T214539Z UID:indico-contribution-1-109@indico.koza.if.uj.edu.pl DESCRIPTION:Speakers: Edoardo Milotti (University of Trieste and INFN-Sezi one di Trieste)\nThe standard scheme of several tests of the Pauli Exclusi on Principle in bulk matter - both in the experiment and in the subsequent data analysis - has long been based on the seminal paper by Ramberg and S now (RS) (Phys. Lett. B238\, 439 (1990)). The ideas exposed in that paper are so simple and immediate that they have long gone unchallenged. However \, while some of the underlying approximations are still valid\, other par ts of the RS paper must be reconsidered. In this talk I describe some new concepts that are related to the motion of the electrons in the test metal (the "target" of the experiment) and which have been recently studied in the framework the VIP Collaboration.\n\nhttps://indico.koza.if.uj.edu.pl/e vent/1/contributions/109/ LOCATION:Collegium Maius URL:https://indico.koza.if.uj.edu.pl/event/1/contributions/109/ END:VEVENT BEGIN:VEVENT SUMMARY:Study of (p\,x) and (γ\,x) reactions on natural Molybdenum DTSTART;VALUE=DATE-TIME:20190625T113000Z DTEND;VALUE=DATE-TIME:20190625T130000Z DTSTAMP;VALUE=DATE-TIME:20260609T214539Z UID:indico-contribution-1-38@indico.koza.if.uj.edu.pl DESCRIPTION:Speakers: Arshiya Anees Ahmed (Jagiellonian University)\nSince 2010 the nuclear medicine community has been expressing global concern fo r the shortage of 99mTc supply based on fission production of 99Mo from hi ghly enriched uranium to produce 99Mo/99mTc generators. As an alternative to reactor based 99Mo/99mTc generator technology\, many research groups h ave suggested the direct production of 99mTc through accelerators. There a re many production methods of 99Mo/99mTc using accelerators. \nProduction of 99Mo/99mTc through proton induced reaction on highly enriched 100Mo loo ks promising. But it is also possible to produce 99Mo/99mTc by natMo. Wit h this method production costs of 99Mo/99mTc may be reduced\, however more radioactive impurities of other Mo isotopes may be produced. At 9-26 MeV energy range there is a large discrepancy in the data available for the pr oduction of Radionuclides impurities\, hence this work was conducted to co ntribute data in reducing the discrepancy. In this work\, we studied targe t yield and the cross-section for the production of long-lived Radionuclid es produced in the natMo target at the energy range 19-26 MeV. Target yiel d was derived using the measured activity of produced radionuclides. The t otal cross section for all isotopes produced is presented and compared wit h the previously available data. Present results showed good agreement wit h most of the earlier reported data. \nPreliminary results of production p ossibility of 99Mo using SOLARIS National Synchrotron Radiation Centre\, C racow\, Poland will be discussed.\n\nhttps://indico.koza.if.uj.edu.pl/even t/1/contributions/38/ LOCATION:Collegium Maius URL:https://indico.koza.if.uj.edu.pl/event/1/contributions/38/ END:VEVENT BEGIN:VEVENT SUMMARY:Quantum Mechanics studies in the Cosmic Silence DTSTART;VALUE=DATE-TIME:20190625T094000Z DTEND;VALUE=DATE-TIME:20190625T100000Z DTSTAMP;VALUE=DATE-TIME:20260609T214539Z UID:indico-contribution-1-72@indico.koza.if.uj.edu.pl DESCRIPTION:Speakers: Kristian Piscichia (Centro Fermi\, LNF (INFN))\nThe VIP-2 at the Underground Gran Sasso Laboratory (LNGS) experiment aims to p erform high precision tests of the Pauli Exclusion Principle for electrons . The spin-statistics connection can be only demonstrated within Quantum F ield Theory\, hence experimental evidence of even a tiny violation of the PEP would be an indication of physics beyond the Standard Model. The metho d consists in circulating a DC current in a copper strip\, searching for t he X radiation emission due to a prohibited transition (from the 2p level to the 1s level of copper when this is already occupied by two electrons). \n VIP already set the best limit on the PEP violation probability for ele ctrons $\\frac12\\beta^2\n\nhttps://indico.koza.if.uj.edu.pl/event/1/cont ributions/72/ LOCATION:Collegium Maius URL:https://indico.koza.if.uj.edu.pl/event/1/contributions/72/ END:VEVENT BEGIN:VEVENT SUMMARY:Laser peened austenic stainless steel studied by positron annihili ation spectroscopy DTSTART;VALUE=DATE-TIME:20190625T113000Z DTEND;VALUE=DATE-TIME:20190625T130000Z DTSTAMP;VALUE=DATE-TIME:20260609T214539Z UID:indico-contribution-1-30@indico.koza.if.uj.edu.pl DESCRIPTION:Speakers: Konrad Skowron (Institute of Nuclear Physics PAN)\n Laser shock peening (LSP) is a proven surface modification process designe d to improve the mechanical properties of materials. LSP is mainly applied on surfaces of metallic components [1]. It consists in irradiating a meta llic target surface with a high power density laser beam pulses. The beam heats and ionizes the sample surface\, turning it into rapidly expanding p lasma which generates a high-pressure shockwave in the target material. It results in severe plastic deformation changes in microstructure and intro duces compressive residual stress inside the target material which are ref lected by increase in hardness and corrosion resistance [2]. LSP is a pro mising method for enhancement of biomedical implant components properties [3].\n\nPositron annihilation spectroscopy (PAS) is a well-established me thod that provides information about changes in micro-structure of the aff ected subsurface region at the atomic level [4]. Changes in the number and the type of crystal lattice defects are reflected in measured positron an nihilation characteristics.\n\nThe poster presents preliminary results of positron annihilation spectroscopy studies of the subsurface zone in 316L stainless steel samples subjected to laser peening. By combining chemical removing of the sample layers and measurement of positron lifetime\, we ob tained the depth profile of defects and determined the affected zone range in the samples after laser processing. The variable energy positron beam (VEP) technique allowed near-surface the depth profiling of defects and ob taining of positron diffusion length in the modified surface layer.\n \n\n Konrad Skowron acknowledges the support of InterDokMed project no. POWR.03 .02.00-00-I013/16\n\nReferences \n [1] Gujba\, A.K.\; Medraj\, M. Material s (2014) 7\, 7925-7974.\n[2] Ebrahimi\, M.\, Amini\, S\, Mahdavi Seyed M.\ , Int J Adv Manuf Technol (2017) 88\, 1557–1565\n[3] Guo\, Y.B.\, Sealy\ , Michael & Guo\, Changsheng\, \, CIRP Annals - Manufacturing Technology ( 2012)\, 61\, 583-586\n[4] Krause-Rehberg R.\, Leipner H. S.\, Positron Ann ihilation in Semiconductors\, Springer-Verlag Berlin Heidelberg (1999)\n\n https://indico.koza.if.uj.edu.pl/event/1/contributions/30/ LOCATION:Collegium Maius URL:https://indico.koza.if.uj.edu.pl/event/1/contributions/30/ END:VEVENT BEGIN:VEVENT SUMMARY:The Future of Charged Particle Therapy after Solving the Uncertain ty Problems DTSTART;VALUE=DATE-TIME:20190624T073500Z DTEND;VALUE=DATE-TIME:20190624T080000Z DTSTAMP;VALUE=DATE-TIME:20260609T214539Z UID:indico-contribution-1-165@indico.koza.if.uj.edu.pl DESCRIPTION:Speakers: Reinhard Schulte (Loma Linda University\, Loma Linda \, CA\, USA)\nRadiation therapy with charged particles (protons\, heavier ions) is associated with considerable uncertainties in range and biologica l effectiveness that limit its compatibility with photon IMRT in randomize d clinical trials. In combination\, these uncertainties often prohibit pre ferred beam directions\nbecause the risk of aiming the beam at organs at r isk is considered too high. In therapy with heavier ions (helium\, carbon) \, differences in RBE models limit the comparability of planned doses betw een different centers. Therefore\, all current clinical trials with proton s and ions may not test the full clinical potential\nof charged particle t herapy and may lead to inaccurate results and wrong conclusions. In this t alk\, I will present solutions for a complete solution of the uncertain pr oblem in charged particles and discuss the future of clinical trials in pa rticle therapy after such solutions have been implemented. We may be at th e verge of a phase shift in radiation therapy.\n\nhttps://indico.koza.if.u j.edu.pl/event/1/contributions/165/ LOCATION:Collegium Maius URL:https://indico.koza.if.uj.edu.pl/event/1/contributions/165/ END:VEVENT BEGIN:VEVENT SUMMARY:How to distinguish between different kind of lesions in PET scan DTSTART;VALUE=DATE-TIME:20190627T101500Z DTEND;VALUE=DATE-TIME:20190627T104000Z DTSTAMP;VALUE=DATE-TIME:20260609T214539Z UID:indico-contribution-1-84@indico.koza.if.uj.edu.pl DESCRIPTION:Speakers: Bożena Jasińska (Institute of Physics\, Maria Curi e Sklodowska University)\nTwo the most known techniques based on positron -electron annihilation are PET (Positron Emission Tomography) and PALS (Po sitron Annihilation Lifetime Spectroscopy). \nPET is a commonly recognized diagnostic method enabling imaging of the metabolism of chosen substances in the living organism. The PET imaging is based on an annihilation of th e positron emitted by radiofarmaceutical with an electron from the body of the patient into two quanta with energy of 511 keV each. One of the most important applications is imaging of patients tumour location and size and aiming at the search for the possible metastases as metabolism rate rises significantly in these places and in effect the number of annihilating po sitrons.\nIn contrary PALS allows to follow of processes leading to positr on annihilation\, including creation and decay the positronium states. It is known that o-Ps lifetime value reflects size of the free spaces in whic h it is trapped. In a vacuum o-Ps annihilate emitting three photons\, in t he dense media some part of o-Ps can annihilate in pick-off process via th e two photon emittion. In effect 3 fraction can reflect changes in tiss ues alteration. \nIt is proposed to include the new imaging method in PET scan based on positronium properties\, i.e. directly reconstruct lifetime spectra in respective area of the body or prepare the new method based on tree photon to two photon annihilation rate.\nPreliminary investigation pr eformed on real healthy and altered human tissues using PALS clearly indic ates that it is possible to distinguish between healthy and diseased tissu es and between different kind of lesions of the some organ using techniqu es based on positron annihilation.\n\nhttps://indico.koza.if.uj.edu.pl/eve nt/1/contributions/84/ LOCATION:Collegium Maius URL:https://indico.koza.if.uj.edu.pl/event/1/contributions/84/ END:VEVENT BEGIN:VEVENT SUMMARY:Reconstruction of the NEMA IEC body phantom from J-PET total-body scanner simulation using STIR. DTSTART;VALUE=DATE-TIME:20190625T113000Z DTEND;VALUE=DATE-TIME:20190625T130000Z DTSTAMP;VALUE=DATE-TIME:20260609T214539Z UID:indico-contribution-1-104@indico.koza.if.uj.edu.pl DESCRIPTION:Speakers: Przemysław Kopka (National Centre for Nuclear Resea rch\, Otwock-Swierk\, Poland)\nCurrent total-body PET scans are time consu ming\, expensive\, and require high-activity radiopharmaceuticals. In avai lable clinical PET scanners\, the cost of detectors introduces restriction s to the field of view. The J-PET project of a total-body scanner based on polymer detectors is expected to increase geometric efficiency without in creasing the production costs. The results of reconstruction of the NEMA I EC phantom simulation for a long J-PET scanner will be presented. The simu lations and reconstruction is carried out using two recognized open source packages. For simulations of the phantom and the scanner the GATE (Geant4 Application for Tomographic Emission) is used\, while the basis for the 3 D image reconstruction is the STIR (Software for Tomographic Image Reconst ruction). Huge number of registered coincidences in a total-body scan pose s a challenge for data acquisition and image reconstruction. Additionally\ , for long cylindrical PET detectors\, the axial resolution can be degrade d by the parallax effect between detected pairs with a large axial differe nce. A more oblique line of response (LOR) penetrates more scintillating m aterial than a LOR of less axial difference\, which coupled with unknown d epth of interaction increases uncertainty on axial position of detection p air. One possible solution to this problem is to limit the maximal LOR ang le with regards to the transverse plane. The effect on the image quality o f LOR angle is discussed.\n\nhttps://indico.koza.if.uj.edu.pl/event/1/cont ributions/104/ LOCATION:Collegium Maius URL:https://indico.koza.if.uj.edu.pl/event/1/contributions/104/ END:VEVENT BEGIN:VEVENT SUMMARY:Spectroscopy of eta'-mesic nuclei with WASA at GSI/FAIR DTSTART;VALUE=DATE-TIME:20190624T130500Z DTEND;VALUE=DATE-TIME:20190624T132500Z DTSTAMP;VALUE=DATE-TIME:20260609T214539Z UID:indico-contribution-1-78@indico.koza.if.uj.edu.pl DESCRIPTION:Speakers: Yoshiki Tanaka (GSI)\nWe are conducting experimental search for $\\eta$'-mesic nuclei aiming at investigating in-medium proper ties of the $\\eta$' meson. The first experiment was performed in 2014 at GSI by measuring the $^{12}$C($p$\, $d$) reaction near the $\\eta$'-meson production threshold. While no significant peak structure due to the forma tion of $\\eta$'-mesic nuclei was observed\, stringent constraints on the formation cross section as well as the $\\eta$'-nucleus interaction have b een deduced. As a next step\, we are planning a semi-exclusive measurement of the $^{12}$C($d$\, $dp$) reaction to extend the experimental sensitivi ty. In addition to the measurement of the ($p$\,$d$) reaction\, a proton e mitted from decay of $\\eta$'-mesic nuclei will be identified in order to enhance the signal-to-background ratio in the experimental spectrum. The W ASA central detector\, which had been used at COSY\, will be moved to GSI and integrated with the fragment separator FRS to enable the planned semi- exclusive measurement. In this contribution\, we will report the present s tatus and future plans of this experiment.\n\nhttps://indico.koza.if.uj.ed u.pl/event/1/contributions/78/ LOCATION:Collegium Maius URL:https://indico.koza.if.uj.edu.pl/event/1/contributions/78/ END:VEVENT BEGIN:VEVENT SUMMARY:PET2020: a one compact and cost-efficient high resolution Body PET scanner DTSTART;VALUE=DATE-TIME:20190627T073000Z DTEND;VALUE=DATE-TIME:20190627T075500Z DTSTAMP;VALUE=DATE-TIME:20260609T214539Z UID:indico-contribution-1-79@indico.koza.if.uj.edu.pl DESCRIPTION:Speakers: Stefaan Vandenberghe ()\nThe aim of the SphynX proje ct is to build and explore the potential of a new unique integrated High r esolution Total Body Time-of-flight Positron Emission Tomography (PET2020) scanner as a research tool for physiology in plants\, large animals and h umas. The system is oriented towards visualizing and understanding molecu lar processes in large living subjects (1-2 m length and 65 cm diameter) . This is a completely new PET system pushing the technical limits of detec tion and spatial resolution for in-vivo molecular imaging of large living subjects. These goals are met by switching to monolithic detector technolo gy with excellent spatial resolution and Depth-of-Interaction. \n\nBecause of its very high sensitivity it can also be used for Ultra Low dose imagi ng. The system will be the first to visualize water and CO2 transport in c omplete plants of this size and will be used to study influence of climate change and stress factors. For veterinary research it will be used to mon itor the effects of therapies like psychofarmaca and neuromodulation. Larg er animals like cats\, dogs\, rabbits and pigs are interesting natural mod el for human disease as these species develops disorders comparable with h uman diseases.\n\nhttps://indico.koza.if.uj.edu.pl/event/1/contributions/7 9/ LOCATION:Collegium Maius URL:https://indico.koza.if.uj.edu.pl/event/1/contributions/79/ END:VEVENT BEGIN:VEVENT SUMMARY:The FAZIA detector and developments from recent experiment for 48C a+27Al system at 40 MeV/A DTSTART;VALUE=DATE-TIME:20190625T113000Z DTEND;VALUE=DATE-TIME:20190625T130000Z DTSTAMP;VALUE=DATE-TIME:20260609T214539Z UID:indico-contribution-1-43@indico.koza.if.uj.edu.pl DESCRIPTION:Speakers: Sahil Upadhyaya (Institute of Physics\, Jagiellonian University\, Krakow)\nHeavy-ion induced reactions offer unique opportunit ies to probe nuclear properties far from the ground state. The isospin flo w during heavy-ion collisions is a subject of current investigation due to its link with the nuclear symmetry energy ($E_{sym}$) which is only partl y known far from stability and ground-state conditions. More specifically\ , at incident energies between 10 and 100 AMeV\, it is possible to investi gate the thermal and mechanical properties of asymmetric nuclear matter. A lso\, they are of paramount importance in the astrophysical context for th e description of the core-collapse of supernovae\, as well as the formatio n and static properties of proto-neutron stars. The FAZIA program is aimed at investigating the evolution of isospin (i.e. the N/Z ratio) effects in heavy-ion collisions for excited (medium-light) quasi-projectiles (QP) fo rmed in semi-peripheral collisions at Fermi energies. Various observables (e.g. isobaric ratios\, mass fragment distributions\, N/Z ratio of fragmen ts\, etc.) are calculated from the data obtained for the study of isospin effects. The experiment is based on the excellent isotopic separation capa bility of the FAZIA detector telescopes (Si-Si-CsI(Tl))\, permitted by the combined use of the ΔE-E and PSA techniques and of fast digital electron ics. In this contribution\, I will report on some possible physics that ca n be studied from the FAZIA-PRE experiment performed at LNS (Catania) with 6 FAZIA blocks\, focusing on the 48Ca + 27Al reaction at 40 MeV/A in comp arison with systems such as 48Ca + 12C at 40 MeV/A and 48Ca + 27Al at 25 M eV/A.\n\nhttps://indico.koza.if.uj.edu.pl/event/1/contributions/43/ LOCATION:Collegium Maius URL:https://indico.koza.if.uj.edu.pl/event/1/contributions/43/ END:VEVENT BEGIN:VEVENT SUMMARY:3D reconstruction of point-like sources in a J-PET scanner using t otal variation regularization DTSTART;VALUE=DATE-TIME:20190627T133500Z DTEND;VALUE=DATE-TIME:20190627T135500Z DTSTAMP;VALUE=DATE-TIME:20260609T214539Z UID:indico-contribution-1-71@indico.koza.if.uj.edu.pl DESCRIPTION:Speakers: Lech Raczyński (National Centre for Nuclear Researc h)\nIn this presentation we provide a comparative studies of two image rec onstruction algorithms for positron emission tomography (PET): a novel rec onstruction method based on the concept of total variation (TV) regulariza tion and a reference time-of-flight filtered back-projection (TOF-FBP) t echnique. The methods are validated using experimental data of the Jagiell onian-PET (J-PET) scanner from measurement of six point-like sources. The reconstruction of the three-dimensional (3D) image of the point-like sourc e\, so called point spread function (PSF)\, is crucial for the estimation of spatial resolution of J-PET detector. The spatial resolution of the J-P ET scanner was determined by estimation of full width half maximum in tran sverse and longitudinal directions of PSF at six position inside the scann er volume. The comparison results shown superior spatial resolution of rec onstructed images from the proposed TV-based method in respect to the TOF- FBP algorithm. Simultaneously\, reconstruction time in proposed technique was approximately 2.5 times shorter than required by reference method.\n\n https://indico.koza.if.uj.edu.pl/event/1/contributions/71/ LOCATION:Collegium Maius URL:https://indico.koza.if.uj.edu.pl/event/1/contributions/71/ END:VEVENT BEGIN:VEVENT SUMMARY:SIDDHARTA-2 is going on DAFNE: exciting period for kaonic atoms! DTSTART;VALUE=DATE-TIME:20190628T142000Z DTEND;VALUE=DATE-TIME:20190628T144000Z DTSTAMP;VALUE=DATE-TIME:20260609T214539Z UID:indico-contribution-1-64@indico.koza.if.uj.edu.pl DESCRIPTION:Speakers: Catalina Curceanu (LNF-INFN)\nI shall present the SI DDHARTA-2 experiment aiming to measure for the first time the kaonic deute rium transitions at the DAFNE collider.SIDDHARTA-2 is being installed on D AFNE in spring 2019. I shall review the future plans and discuss prospecti ves for kaonic atoms physics.\n\nhttps://indico.koza.if.uj.edu.pl/event/1/ contributions/64/ LOCATION:Collegium Maius URL:https://indico.koza.if.uj.edu.pl/event/1/contributions/64/ END:VEVENT BEGIN:VEVENT SUMMARY:Searches for discrete symmetry violation signals in decays of posi tronium atoms at J-PET DTSTART;VALUE=DATE-TIME:20190626T082000Z DTEND;VALUE=DATE-TIME:20190626T084000Z DTSTAMP;VALUE=DATE-TIME:20260609T214539Z UID:indico-contribution-1-123@indico.koza.if.uj.edu.pl DESCRIPTION:Speakers: Aleksander Gajos (Jagellonian University\, Kraków\, Poland)\nThe Jagiellonian Positron Emission Tomograph (J-PET) was constru cted as the first PET scanner using plastic scintillators. However\, it al so constitutes a robust photon detector useful for a broad range of experi ments involving orto-positronium (o-Ps) decays into three photons.\n We wi ll present an overview of studies performed with o-Ps→3γ decays in J-PE T with a view to searching for signals of discrete symmetries violation. T he discussed studies will comprise measurements of angular correlations be tween the photons’ momenta and positronium spin direction as well as a n ew class of operators sensitive to discrete symmetries violation involving photon polarization. \n To date\, the most precise tests of the CP and CP T symmetries using ortho-positronium decays reached the precision of 3$\\t imes 10^{-3}$ whereas effects limiting the sensitivity are only expected a t the level of $10^{-9}$. With an angular resolution and o-Ps polarization control improved with respect to previous measurements\, J-PET aims at ac hieving the sensitivity to CP and CPT violation signals at a precision lev el of at least $10^{-4}$.\n\nhttps://indico.koza.if.uj.edu.pl/event/1/cont ributions/123/ LOCATION:Collegium Maius URL:https://indico.koza.if.uj.edu.pl/event/1/contributions/123/ END:VEVENT BEGIN:VEVENT SUMMARY:The KLOE-2 experiment at DAΦNE DTSTART;VALUE=DATE-TIME:20190624T132500Z DTEND;VALUE=DATE-TIME:20190624T134500Z DTSTAMP;VALUE=DATE-TIME:20260609T214539Z UID:indico-contribution-1-57@indico.koza.if.uj.edu.pl DESCRIPTION:Speakers: Elena Perez del Rio (INFN-LNF)\nThe KLOE-2 experimen t has finished its data taking campaign at the DAΦNE collider\, recordin g about 5.5fb−1 of data. Together with the already collected events from the KLOE campaigns\, the registered data represents the largest sample of φ-mesons acquired in a φ-factory. KLOE-2 is the continuation of the KLO E experiment with a improved physics program mainly focused on the study o f KS\, η rare decays as well as on kaon interferometry\, test of discrete symmetries\, and search for physics beyond the Standard Model. Starting 2 008\, the general purpose KLOE detector was upgraded at the same time that a new scheme of the interaction region of the DAΦNE collider was impleme nted. The upgraded KLOE-2 detector included a new cylindrical GEM detector \, the Inner Tracker\, to improve the vertex reconstruction capabilities a nd a tagging system for scattered electrons in γγ processes\, as well as small angle calorimeters to improve the acceptance for particles coming f rom the Interaction Point. The talk will cover the present status and plan s of the experiment as well as the latest physics achievements of the coll aboration.\n\nhttps://indico.koza.if.uj.edu.pl/event/1/contributions/57/ LOCATION:Collegium Maius URL:https://indico.koza.if.uj.edu.pl/event/1/contributions/57/ END:VEVENT BEGIN:VEVENT SUMMARY:Investigation of the heavy inorganic scintillators for quality ass urance in hadron therapy DTSTART;VALUE=DATE-TIME:20190625T113000Z DTEND;VALUE=DATE-TIME:20190625T130000Z DTSTAMP;VALUE=DATE-TIME:20260609T214539Z UID:indico-contribution-1-28@indico.koza.if.uj.edu.pl DESCRIPTION:Speakers: Katarzyna Rusiecka (Marian Smoluchowski Institute of Physics\, Jagiellonian University\, Kraków\, Poland)\nIn the last decade s hadron therapy has become an important cancer treatment modality. Theref ore\, research towards improvement of quality assurance and new online tre atment monitoring methods has intensified. Prompt gamma imaging (PGI) is o ne of the most promising techniques for real time monitoring of deposited dose distribution. Recent development in production of inorganic scintilla tors resulted in variety of materials\, many of which show excellent timin g properties and light yield. Moreover\, due to large densities and Zeff\, those materials are well suited for the detection of a few-MeV gamma radi ation emitted as a by-product of hadron therapy. Such scintillators\, when manufactured in a form of thin fibers and combined with modern silicon ph otomultipliers (SiPMs)\, allow for compact and granular detector designs. Thus\, heavy inorganic scintillators seem to be suitable for PGI detectors \, such as Compton cameras. \n\nWithin the SiFi-CC project we investigated properties of heavy inorganic scintillating materials for their future a pplication in fiber-based Compton camera. The study was focused on lutetiu m based crystals (LuAG:Ce\, LYSO:Ce)\, as well as recently developed GAGG: Ce:Mg material. All samples had an elongated\, fiber-like shape with 1 x  1 mm2 cross section and 100 mm length. The following properties of the materials have been investigated: attenuation length of the scintillating light\, timing characteristics\, energy resolution and light output. Addit ionally\, in order to optimize performance of the scintillators an influen ce of different coating types has been investigated.\n\nhttps://indico.koz a.if.uj.edu.pl/event/1/contributions/28/ LOCATION:Collegium Maius URL:https://indico.koza.if.uj.edu.pl/event/1/contributions/28/ END:VEVENT BEGIN:VEVENT SUMMARY:Extraction of Baryonia from Atomic Data DTSTART;VALUE=DATE-TIME:20190625T133500Z DTEND;VALUE=DATE-TIME:20190625T135500Z DTSTAMP;VALUE=DATE-TIME:20260609T214539Z UID:indico-contribution-1-54@indico.koza.if.uj.edu.pl DESCRIPTION:Speakers: Sławomir Wycech (National Centre for Nuclear Resear ch)\nExotic atom X-ray research offers atomic level shifts and widths fo r "lower levels" and widths for "upper levels". Understanding of lower lev els is usually difficult as due to larger nuclear–atomic overlap\, many body phenomena are involved.\n\nIn the upper levels the orbital hadron jus t grazes the nucleus and the physics is reduced essentially to single hadr on – nucleon collisions. Moreover these collisions involve sub-threshol d energies and thus allow studies of quasi-bound states in this region. \ n\nWith antiprotons the "upper level" data are quite numerous and involve level widths in light nuclei\, shifts and widths in several heavy nuclei and specific annihilation channels. These data indicate some anomalies in nuclei of sizably different proton and neutron separation energies. These anomalies can be explained provided there exist nucleon–antinucleon 33P1 quasi-bound state at about 8 MeV binding. Such states were predicted by P aris N-Nbar potential models [1]\, albeit at different energies.\n\nPossib ilities of similar studies in Kaonic atoms will be outlined.\n\n[1] PHYSI CAL REVIEW C 79\, 054001 (2009)\n\nhttps://indico.koza.if.uj.edu.pl/event/ 1/contributions/54/ LOCATION:Collegium Maius URL:https://indico.koza.if.uj.edu.pl/event/1/contributions/54/ END:VEVENT BEGIN:VEVENT SUMMARY:Investigation of the Effect of Axial Ring Splitting for Cost Reduc tion of Total Body PET Scanners DTSTART;VALUE=DATE-TIME:20190627T144500Z DTEND;VALUE=DATE-TIME:20190627T150500Z DTSTAMP;VALUE=DATE-TIME:20260609T214539Z UID:indico-contribution-1-18@indico.koza.if.uj.edu.pl DESCRIPTION:Speakers: Nikos Efthimiou (University of Hull)\n#Introduction\ nIn 2016 the development of Total Body PET (TB-PET) system with a $2$ m lo ng axial FOV at UCDavis (California) and a $70$ cm-$1\,4$ m\nlong axial FO V at UPENN (Philadelphia) has been initiated and United imaging (together with UCDavis) has\nrecently launched the first Total Body PET system for c linical imaging (FDA approved).\n\n**The aim of this work is to try to fin d a more cost effective way to build a TB-PET scanner.**\nIn particular we investigated the possibility of a chess-like arrangement of detectors\, b y splitting the ring detectors into an even detectors ring and an odd.\nEf fectively by reducing the number of detectors by half and extending the ax ial FOV as much. \n\n#Material and Methods\nGATE Monte Carlo simulations w ere incorporated for the simulation process and tools from STIR image reco nstruction toolkit for the sinogram processing and image reconstruction. \ n\nThree configurations were considered. A long axial FOV scanner (axial l ength 626 mm)\, a split ring configuration\, where interchangeably rings m iss either the odd or the even detectors (axial length 1252 mm) and finall y a TB PET scanner with full rings (axial length $1252$ mm). The configura tions are named: Config.A\, Config.B and Config.C\, correspondingly. The t hree configurations are illustrated in figure (\\url{https://figshare.com/ s/2f6c1a09a38c2916f86d}). \n\nBriefly\, the system model is composed by bl ocks with $8 \\times 8$ LYSO crystals with size $4\\times 4$ mm$^2$. \nEac h system module either had one block (config.A)\, a combination of block a nd gap (config.B) or two blocks (config.C). \n\nFor the comparison and eva luation of the three configurations an adaptation of the NEMA NU-2012 prot ocol\, was used. \nIn particular the count losses phantom which in the sta ndard protocol has length of 700 mm was extended to 1500 mm\, in order to provide a fair comparison between the long scanners and highlight the bene fits of the longer axial length. \n\n#Results\nIn terms of number of detec ted prompts config. C was found far more efficient\, as it shares the long est length with config. B but without gaps.\nThe config. A was found sligh tly better than config. B. Showing that the axial expansion of the scanner does not fully compensate for the introduction of the gaps (Figure: (\\ur l{http://figshare.com/s/2bab7a8ca4cd906a7452}). \n\nAs illustrated in Fig. \\url{https://figshare.com/s/e51b4924e0a7ad7b5972} in terms of kcps the NE CR of Config. C is superior to the rest of configurations. \nHowever the p eak is located in a lower activity concentration than the rest. \nComparis on between Config. B and A. reveals that the NECR of config. A is quite be tter\, something that was not hinted by the number of detected prompts. \n This shows that the true events loss\, due to the gaps is proportionally m ore significant than for the scattered and random events\, which are less affected. \n\nIn Fig~\\url{https://figshare.com/s/e51b4924e0a7ad7b5972} th e NECR of the PET scanner with classic axial FOV (240 mm)\, was included i n order to highlight the benefits in sensitivity of the long scanners over the shorter. \n\nFurther\, this is shown in Fig.~\\url{https://figshare.c om/s/22a517d33c10156a0c59} where reconstructed images (OSEM 12sub. 60 ite rations)\, of the short scanner and Config. A.\, are demonstrated. The acq uisition was of a normal FDG biodistribution of 10 seconds. In addition\, to the wider FOV the longer scanner offers substantially smoother image. \ n\n#Conclusions\nAn alternative\, cost efficient design for the TB-PET sca nner using a chess-like pattern of detectors was evaluated\, in terms of c ount losses and compared to a compact configuration having the same number of detectors and a configuration with the same axial length and double th e detectors. \nIt was found that although the impact on the counting abili ty of the scanner is not significant the NECR is significantly reduced. Th is hints that the detected true events suffer greater losses than the rand om and scattered. Of course\, this does not undermine the benefits of the increased FOV. \n\n#Future work\nOur ability to reconstruct images of long PET scanner reaches the 700mm. We plan to further extend that using more efficient memory management.\n\nhttps://indico.koza.if.uj.edu.pl/event/1/c ontributions/18/ LOCATION:Collegium Maius URL:https://indico.koza.if.uj.edu.pl/event/1/contributions/18/ END:VEVENT BEGIN:VEVENT SUMMARY:Positron study of liquids confined in nanovoids DTSTART;VALUE=DATE-TIME:20190628T084000Z DTEND;VALUE=DATE-TIME:20190628T090500Z DTSTAMP;VALUE=DATE-TIME:20260609T214539Z UID:indico-contribution-1-82@indico.koza.if.uj.edu.pl DESCRIPTION:Speakers: Radek Zaleski (Maria Curie-Skłodowska University)\n Water confined in spaces of nanometer size do not form ice crystals at low ered temperature. Instead\, it remains stable in a supercooled and amorpho us state. This allows to reach the “no man’s land”\, i.e. deeply sup ercooled state of water\, which is hardly accessible for experiments on bu lk water. On the other hand\, studies under conducted under the "negative" pressure (i.e. below the saturated vapor pressure) provide interesting in formation concerning behavior of water. Favorably\, such conditions can ea sily be achieved for confined water\, where the double metastable area (in relation to steam and ice) becomes completely stable due to the capillary condensation effect. Positron annihilation lifetime spectroscopy (PALS) a llows to observe phase transitions of nanoconfined water from the supercoo led liquid to the plastic-like phase\, and then to the amorphous glass-lik e phase. The temperature shift of the phase transitions with the change of the negative pressure is observed. In addition\, the positron lifetime ob served at different pressures is clearly different. This suggests that the properties of each phase change due to the increase in the curvature of t he meniscus on the liquid surface or the weakening of the water’s intera ction with the pore walls. Understanding this effect should allow for the extrapolation of the obtained results to the expected values for bulk wate r. Therefore\, the results obtained for water are compared with the ones f or nano-confined n-heptane\, which should allow to distinguish water-speci fic effects from those that are common to all liquids.\n\nhttps://indico.k oza.if.uj.edu.pl/event/1/contributions/82/ LOCATION:Collegium Maius URL:https://indico.koza.if.uj.edu.pl/event/1/contributions/82/ END:VEVENT BEGIN:VEVENT SUMMARY:The accumulation effect in positron implantation profiles and anni hilation characteristics DTSTART;VALUE=DATE-TIME:20190628T065500Z DTEND;VALUE=DATE-TIME:20190628T072000Z DTSTAMP;VALUE=DATE-TIME:20260609T214539Z UID:indico-contribution-1-76@indico.koza.if.uj.edu.pl DESCRIPTION:Speakers: Jerzy Dryzek (Institute of Nuclear Physics PAN)\nThe implantation of energy positrons into the matter is rarely considered in positron annihilation spectroscopy because it is based on the annihilation of thermalized positrons.\nHowever\, in the case of a medium that exhibit s inhomogeneity\, the implantation process may affect the measured annihil ation characteristics\, for example\, positron lifetime spectrum or Dopple r broadening of annihilation line. Our latest theoretical and experimental investigations of implantation profiles in stacks of various metallic foi ls revealed a characteristic accumulation of positrons in a film of denser metal. This effect seems to be obvious because differences in the linear absorption coefficient values cause specific segregation of positrons\, th ey are accumulated in a denser region. This leads the fraction of positron s that annihilate in the denser region is higher than its fractional volum e. This effect was clearly demonstrated in the case of epoxy resin samples with embedded heavy metal microparticles. Monte Carlo simulations support ed experimental dependencies. \n\nOur recent studies have shown that the e ffect of accumulation depends on the size of particles deposited in the me dium. This suggests that also the diffusion of thermilized positons plays a role in the effect of accumulation\, certainly when the particles have a diameter of a nanometer. A model of diffusion of positrons with the accum ulation effect will be presented. Its predictions will be discussed.\n\nht tps://indico.koza.if.uj.edu.pl/event/1/contributions/76/ LOCATION:Collegium Maius URL:https://indico.koza.if.uj.edu.pl/event/1/contributions/76/ END:VEVENT BEGIN:VEVENT SUMMARY:Development of vacuum chambers for J-PET experiments DTSTART;VALUE=DATE-TIME:20190625T113000Z DTEND;VALUE=DATE-TIME:20190625T130000Z DTSTAMP;VALUE=DATE-TIME:20260609T214539Z UID:indico-contribution-1-41@indico.koza.if.uj.edu.pl DESCRIPTION:Speakers: Marek Gorgol (Maria Curie-Sklodowska University\, In stitute of Physics\, Department of Nuclear Methods)\nVacuum chambers are n ecessary for the physics experiments\, planned to be carried out with the use the J-PET detector. Several chambers\, with particular purposes listed below\, were manufactured and tested at various stages of development of the detector.\nThe chambers used for particular runs of J-PET experiments had generally cylindrical shapes\, while the radioactive source was place d in the center of each chamber. Such orientation ensures the axially symm etrical response of J-PET scintillators and allows to carry out correct ca libration. Variation of the material used for manufacturing of the chamber s (aluminum/ plastic)\, allows to observe the detector response with vario us absorption and scattering of gamma quanta. Such determination is necess ary for proper analysis of multi-gamma annihilation\, which will be needed for planned experiments. \nAdditionally\, individual chambers vary in siz es and the spatial orientation of the porous material\, used as a target i n which positrons/ positronium atoms annihilate. In two chambers the inves tigated sample\, was placed in the immediate vicinity of the source\, whil e in the biggest one\, the target material was evenly distributed on the i nternal surface of the chamber wall. Such orientation allowed to investig ate the exact position of annihilation event. The replacement of porous ma terial with metal one allowed to observe the difference of the detector ef ficiency for 2 gamma and 3 gamma detection.\n\nhttps://indico.koza.if.uj.e du.pl/event/1/contributions/41/ LOCATION:Collegium Maius URL:https://indico.koza.if.uj.edu.pl/event/1/contributions/41/ END:VEVENT BEGIN:VEVENT SUMMARY:Search for the Charge symmetry forbidden annihilation of electron- positron pair using the J-PET detector DTSTART;VALUE=DATE-TIME:20190625T113000Z DTEND;VALUE=DATE-TIME:20190625T130000Z DTSTAMP;VALUE=DATE-TIME:20260609T214539Z UID:indico-contribution-1-169@indico.koza.if.uj.edu.pl DESCRIPTION:Speakers: Jyoti Chhokar (Jagiellonian University)\nDiscrete sy mmetries ( reflection in space (P)\, reversal in time (T) and charge conju gation (C)) are violated in weak interactions only. Charge conjugation tra nsforms a particle into antiparticle and vice versa by changing its intern al quantum numbers. Positronium atom (Ps) which is the meta-stable bound system of particle (e-) and its antiparticle (e+) can be an excellent to ol for studying the charge symmetry violation [1-3]. In 1967\, Mills and B erko measured the C-forbidden decays of the singlet state (1S0: p-Ps) by e stimating the ratio (R) of its decays 3γ / 2γ with best limit so far (R~ 2.6x10-6 at 68% confidence level ) [4].\nJ-PET is the PET device built fro m 192 plastic scintillators of dimension 500 X19 X 7 mm3 which are arrang ed axially in 3-layers [5-8]. It can be used to investigate the C-forbidde n decays of the positronium atoms (p-Ps → 3γ) and estimating the branch ing ratio between 3γ to 2γ [2]. The event wise registration of the annih ilation photons emitting from the decay of positronium atoms allows to dis tinguish between photons originating from the long-lived (o-Ps in range of ns) or short-lived (p-Ps in range of ps) atoms [9-10]. Furthermore\, the angular correlation between the annihilated photons can also be used as a signature to differentiate between the decays from singlet (p-Ps) or tripl et (o-Ps) states of the Ps atoms. The plastic scintillators used in J-PET offers an excellent time and high angular resolution and thus the value of R is expected to be measured with better sensitivity [5]. The status and preliminary results from the studies will be discussed and presented. \nR eferences:\n1] W. Bernreuther et al.\, Z. Phys. C 41\, 143 (1998)\n[2] P. Moskal et al.\, Acta Phys. Polon. B 47\, 509 (2017)\n[3] E. Czerwinski et al.\, Acta Phys. Polon. B 48\, 1961 (2017)\n[4] A. P. Mills et al.\, Phys. Rev. Lett. 18\, 420 (1967)\n[5]P. Moskal et al.\, Nucl. Instr. Meth. A 76 4\, 317 (2014)\n [7] P. Moskal et al.\, Phys. In Med. And Bio. 61 \, 2025 (2016)\n[8] S. Niedzwiecki et al.\, Acta. Phys. Polon. B 48\, 1567\, (2017 )\n[9] B. Jasinska et al. Acta. Phys. Polon. B 47\, 453 (2016)\n[10] K. Du lski et al.\, Hyperfine Interaction 40 \, 1 (2018)\n\nhttps://indico.koza. if.uj.edu.pl/event/1/contributions/169/ LOCATION:Collegium Maius URL:https://indico.koza.if.uj.edu.pl/event/1/contributions/169/ END:VEVENT BEGIN:VEVENT SUMMARY:STIR: an Open Source library for PET and SPECT image reconstructio n: status and future DTSTART;VALUE=DATE-TIME:20190627T123000Z DTEND;VALUE=DATE-TIME:20190627T125500Z DTSTAMP;VALUE=DATE-TIME:20260609T214539Z UID:indico-contribution-1-166@indico.koza.if.uj.edu.pl DESCRIPTION:Speakers: Kris Thielemans (University College London)\nSTIR (S oftware for Tomographic Image Reconstruction) is Open Source software prov iding a Multi-Platform Object-Oriented framework for data manipulations in tomographic imaging. Currently\, the emphasis is on image reconstruction in emission tomography (PET and SPECT). Motion correction and parametric i maging is also supported. STIR is implemented in C++ but provides both a P ython and MATLAB interface. STIR has an active developer community. This t alk will give an overview of current and upcoming features. We will also d iscuss the relation with the Synergistic Image Reconstruction Framework (S IRF) project.\n\nhttps://indico.koza.if.uj.edu.pl/event/1/contributions/16 6/ LOCATION:Collegium Maius URL:https://indico.koza.if.uj.edu.pl/event/1/contributions/166/ END:VEVENT BEGIN:VEVENT SUMMARY:Simulating J-PET detector on NVidia Ray Tracing Hardware DTSTART;VALUE=DATE-TIME:20190627T150500Z DTEND;VALUE=DATE-TIME:20190627T152000Z DTSTAMP;VALUE=DATE-TIME:20260609T214539Z UID:indico-contribution-1-110@indico.koza.if.uj.edu.pl DESCRIPTION:Speakers: Piotr Białas (Jagiellonian University)\nImage recon struction in PET tomography requires a good description of the detector re sponse usually in the form of the system matrix or kernel. This is normall y not possible to calculate exactly. One alternative is to use Monte-Carlo methods. However standard simulation software like Geant or GATE is to sl ow to obtain the system matrix of the detector with good accuracy in a rea sonable time. To this end\, we have used a custom build software running o n NVidia GPU using CUDA. Last year NVidia released a new line of graphics cards (RTX) with hardware support for ray tracing. This seems a perfect to ol for simulation of the interaction of particles in the detector. In thi s talk\, I will present the results we have obtained on this new hardware. \n\nhttps://indico.koza.if.uj.edu.pl/event/1/contributions/110/ LOCATION:Collegium Maius URL:https://indico.koza.if.uj.edu.pl/event/1/contributions/110/ END:VEVENT BEGIN:VEVENT SUMMARY:The antikaon deuterium experiment at J-PARC - studying strong inte raction DTSTART;VALUE=DATE-TIME:20190625T135500Z DTEND;VALUE=DATE-TIME:20190625T141500Z DTSTAMP;VALUE=DATE-TIME:20260609T214539Z UID:indico-contribution-1-86@indico.koza.if.uj.edu.pl DESCRIPTION:Speakers: Johann Zmeskal (Stefan Meyer Institute for Subatomic Physics)\nStudies with kaonic atoms offer the unique opportunity to perfo rm experiments at vanishing relative energies between the antikaon and the nucleon\, because their atomic binding energies are in the keV range\, fa r below the lowest energies of extracted beams for scattering experiments. Specially\, kaonic hydrogen atoms offer an ideal framework to study stron g-interaction processes\, which will give access to the basic low-energy p arameters\, like the antikaon-nucleon scattering lengths. \nThe antikaon h ydrogen reaction is well understood from the recent results obtained from KpX at KEK\, DEAR and finally from SIDDHARTA at DAFNE\, along with theoret ical calculations based on these results. \nAlthough the importance of ant ikaon deuterium atom X-ray spectroscopy has been well recognized\, no expe rimental results have yet been obtained due to the difficulty of the X-ray measurement. The kaonic deuterium measurement is indeed needed to disenta ngle the isoscalar and isovector complex scattering length\, shedding ligh t on the antikaon-neutron interaction\, long-awaited by theory.\nThe plann ed antikaon deuterium experiment at the Japan Proton Accelerator Research Complex (J-PARC\, Japan) will be described\, including first test measurem ents at J-PARC with the newly developed X-ray detector system.\n\nhttps:// indico.koza.if.uj.edu.pl/event/1/contributions/86/ LOCATION:Collegium Maius URL:https://indico.koza.if.uj.edu.pl/event/1/contributions/86/ END:VEVENT BEGIN:VEVENT SUMMARY:Production of Double-$\\Lambda$ Hypernuclei via $\\Xi$-Hypernuclea r Decay at J-PARC DTSTART;VALUE=DATE-TIME:20190625T160500Z DTEND;VALUE=DATE-TIME:20190625T162500Z DTSTAMP;VALUE=DATE-TIME:20260609T214539Z UID:indico-contribution-1-93@indico.koza.if.uj.edu.pl DESCRIPTION:Speakers: Hiroyuki Fujioka (Tokyo Institute of Technology)\nTh e investigation of hypernuclei with strangeness $-2$ is one of the hot top ics in hypernuclear physics\, and the advent of an intense kaon beam at J- PARC has enabled us to explore them in detail. We have proposed a new expe riment to produce probably the lightest double-$\\Lambda$ hypernucleus\, $ {}^{\\ \\ \\ \\ 5}_{\\Lambda\\Lambda}\\mathrm{H}$. A substantial fraction of a $\\Xi$-hypernucleus\, ${}^{\\ 7}_{\\Xi}\\mathrm{H}$\, which can be pr oduced in the ${}^7\\mathrm{Li}(K^-\,K^+)$ reaction\, is expected to decay into ${}^{\\ \\ \\ \\ 5}_{\\Lambda\\Lambda}\\mathrm{H}+2n$. The mass of $ {}^{\\ \\ \\ \\ 5}_{\\Lambda\\Lambda}\\mathrm{H}$ will be determined by ` `decay pion spectroscopy''\, which was successfully applied for a single $ \\Lambda$ hypernucleus at MAMI.\n\nIn this contribution\, we will review t he current situation of the strangeness $-2$ sector in hypernuclear physic s and outline the concept of the proposed experiment.\n\nhttps://indico.ko za.if.uj.edu.pl/event/1/contributions/93/ LOCATION:Collegium Maius URL:https://indico.koza.if.uj.edu.pl/event/1/contributions/93/ END:VEVENT BEGIN:VEVENT SUMMARY:High-precision X-ray spectroscopy of kaonic atoms with superconduc ting detector DTSTART;VALUE=DATE-TIME:20190625T152500Z DTEND;VALUE=DATE-TIME:20190625T154500Z DTSTAMP;VALUE=DATE-TIME:20260609T214539Z UID:indico-contribution-1-85@indico.koza.if.uj.edu.pl DESCRIPTION:Speakers: Shinji Okada (RIKEN)\nA high-resolution X-ray spectr ometer based on an array of novel superconducting micro-calorimeters is ap plied to an experiment of hadron physics for the first time. The scientifi c campaign of the experiment was completed in 2018. The fresh result from the measurement will be presented in this symposium.\n\nThe strong interac tion between an anti-kaon and a nucleon/nucleus is known to be strongly at tractive in the isospin I=0 channel\, which creates extensive interest in studying “kaonic nuclear states”: very recently\, J-PARC E15 experimen t shows a clear structure which could be interpreted as the K− nuclear b ound state [1]. Whereas the measurements of kaonic atom X-rays which provi de unique information of the interaction at zero energy become increasingl y important\, the precision is still not enough to determine K− nucleus potential strength.\n\nThe experiment\, J-PARC E62\, aims to determine 2p- level strong interaction shifts of kaonic 3He and 4He atoms by measuring X -rays from those atoms emitted in the transition from the 3d to the 2p orb itals (6.2 keV and 6.4 keV\, respectively) which is relevant to resolve th e long-standing problem on the depth of the K- nucleus potential. Since th e widths of the transitions are predicted to be as small as 2eV\, we intro duced a novel X-ray detector\, namely superconducting transition-edge-sens or (TES) microcalorimeter offering unprecedented high energy resolution [2 ]\, being more than one order of magnitude better than that achieved in th e past experiments using conventional semiconductor detectors.\n\nWe carri ed out the experiment at Japan Proton Accelerator Research Complex (J-PARC \; Tokai\, Japan) in June 2018 and successfully observed distinct X-ray pe aks from both atoms with a 240-pixel TES array having about 23 mm2 collect ing area. The achieved average energy resolution is 5 eV (FWHM) at 6 keV w ith the charged-particle beam off and 7 eV with the beam on. The time reso lution is about 1 µs (FWHM) by merging data streams from beam-detection e lectronics into the TES's time-division-multiplexing DAQ system.\n\nWe giv e an overview of this project and report the brand-new results obtained fr om the scientific kaonic-atom X-ray spectroscopy campaign.\n\n[1] J-PARC E 15 collaboration\, Phys. Lett. B 789 (2019) 620-625.\n[2] W. B. Doriese\, et al.\, Review of Scientific Instruments 88 (2017) 053108.\n\nhttps://ind ico.koza.if.uj.edu.pl/event/1/contributions/85/ LOCATION:Collegium Maius URL:https://indico.koza.if.uj.edu.pl/event/1/contributions/85/ END:VEVENT BEGIN:VEVENT SUMMARY:Using plastic scintillators to disentangle antiprotons annihilatio ns from positron and positronium annihilations in AEgIS DTSTART;VALUE=DATE-TIME:20190628T090500Z DTEND;VALUE=DATE-TIME:20190628T093000Z DTSTAMP;VALUE=DATE-TIME:20260609T214539Z UID:indico-contribution-1-75@indico.koza.if.uj.edu.pl DESCRIPTION:Speakers: Nicola Zurlo (Brescia University and INFN\, sezione di Pavia)\nThe AEgIS experiment\, currently in progress at the CERN Antip roton Decelerator (AD)\, aims at producing antihydrogen (and ultimately me asuring the effects of the Earth gravitational field on it) with an innova tive method based on the charge exchange reaction between an antiproton ( $\\bar{ p}$) and a highly-excited positronium atom:\n$$\n\\bar{ p}+\\mathr m{Ps}^* \\rightarrow \\bar{H}^* + e^-\n$$\nWhile positronium (Ps) is prod uced by positrons implantation on a mesoporous silica target and subsequen tly excited to a Rydberg state (Ps*) via double step laser excitation\, an tiprotons are kept in a multi-ring Penning-Malmberg trap with a part of th e electrodes replaced by a thin mesh\, to let Ps$^*$ in\, and situated clo se to the region where Ps* is created.\n\nAfter a summary of the current A EgIS status and of the milestones achieved so far by the Collaboration (fr om the antiprotons side as well as from the positronium side) and after a short description of the diagnostic tools developed to monitor particle ma nipulations\, we will focus on the system of external plastic scintillator s slabs\, surrounding the 1 T superconducting magnet cryostat\, read out b y photomultipliers that were calibrated and equalised to be exploited as a whole detector with useful granularity to consistently detect single an tiparticle annihilations. \nThe whole set consists of 12 arc-shaped slabs\ , made by EJ-200 general-purpose plastic scintillator\, each of them being 1 cm thick\, 10 cm wide\, $\\sim$150 cm in length\, situated as close as possible to the apparatus to maximise the overall solid angle (that was a round 20\\% for annihilations near the antiproton trap region). The slabs were read from both sides by two independent\, high-gain photomultipliers to avoid spurious signals and to have good efficiency despite the light a ttenuation in the slabs.\n\nIn particular\, periodic calibrations campaig ns with cosmic rays and a detailed analysis of the system (also through a Geant4 simulation) has let us have the system constantly under control and therefore allowed us to identify antiprotons annihilations with good sens itivity and virtually unitary specificity over the significant background of positron/positronium annihilations. \nThis has also made it possible to use the system of external plastic scintillators for antihydrogen annih ilations tagging.\n\nhttps://indico.koza.if.uj.edu.pl/event/1/contribution s/75/ LOCATION:Collegium Maius URL:https://indico.koza.if.uj.edu.pl/event/1/contributions/75/ END:VEVENT BEGIN:VEVENT SUMMARY:Development of the J-PEM for breast cancer detection and diagnosis using positronium imaging DTSTART;VALUE=DATE-TIME:20190625T113000Z DTEND;VALUE=DATE-TIME:20190625T130000Z DTSTAMP;VALUE=DATE-TIME:20260609T214539Z UID:indico-contribution-1-153@indico.koza.if.uj.edu.pl DESCRIPTION:Speakers: Shivani . (Jagiellonian University)\nThe purpose of the presented investigations is to design\, construct and to establish the characteristic performance of the J-PEM (Jagiellonian Positron Emission M ammography)\, which is imaging modality for the detection and diagnosis of breast cancer\, based on a novel idea with plastic scintillator [1\,2] an d wavelength shifter (WLS) [3]. Out of all imaging modalities\, J-PEM is a type of Positron Emission Mammography (PEM) which is a dedicated and well -recognized technique to diagnosis the breast cancer which is based on the same principle as that of PET. J-PEM can be an effective system for the d etection and diagnosis of breast cancer in its early stage by improving se nsitivity and specificity and it can be achieved by the combined use of pl astic scintillators\, which have superior timing properties\, with the WLS . In addition\, this device will be developed in view of the classificatio n of malignancy based on the possibility of positronium mean lifetime imag ing [4].\nWe have prepared a simulation program based on Monte Carlo metho d for optimizing the geometry and material for the J-PEM prototype. Next s tep will be to construct the first prototype using the above geometry and material. We will be taking the detector system into operation\, performin g hardware commissioning and calibration. We also intend to prepare the im age reconstruction procedure for double module J-PEM and make measurements with radioactive sources(handling with proper safety) and phantoms for te sting of the device focusing upon its imaging capabilities. Furthermore\, data analysis and determination of the imaging characteristics prototype f or Specificity\, Sensitivity\, Position spread function(PSF) and signal to noise ratio (SNR).\n\nhttps://indico.koza.if.uj.edu.pl/event/1/contributi ons/153/ LOCATION:Collegium Maius URL:https://indico.koza.if.uj.edu.pl/event/1/contributions/153/ END:VEVENT BEGIN:VEVENT SUMMARY:Application of Silicon-Polymer composite varistors to protect sens itive medical imaging circuits and performing better voltage bias for SiPM s DTSTART;VALUE=DATE-TIME:20190625T113000Z DTEND;VALUE=DATE-TIME:20190625T130000Z DTSTAMP;VALUE=DATE-TIME:20260609T214539Z UID:indico-contribution-1-170@indico.koza.if.uj.edu.pl DESCRIPTION:Speakers: Faranak Tayefi Ardebili (Department of Physics\, Tab riz University Tabriz\, Iran. 
)\nNowadays Silicon photomultipliers (SiP M) becomes a reasonable choice for time of flights Positron emission tomog raphy( TOF-PET). To achieve the best performance of SiPMs\, it is necessar y to adjust a suitable voltage bias\; this means that SiPMs are very sensi tive to voltage fluctuations [1]. One of the most significant issues in el ectronic circuits related to medical imaging equipments is finding a way t o protect them against voltage fluctuations. The common method is using vo ltage dependent resistors which is called varistors [1]. The resistivity o f a varistor decreases extremely at the specific voltage called Breakdown voltage. Also this electronic piece can save circuit from voltage damages by diverting surge current to an external circuit. [2\, 3]. Silicon-polyme r composite varistors\, which were prepared using hot press method at a te mperature of 130°C and a pressure of 60 MP\, have been investigated. Rese arch on (I-V) characteristics of samples shows that by increasing Silicon content in the mixture\, the breakdown voltage decreases from 110V to 70V\ , but leakage current increases. Increasing Silicon content decreases the ir potential barrier height also from 0.29 eV to 0.26 eV. Unlike breakdown voltage and potential barrier height\, increasing Silicon content increas es nonlinear coefficient from 4.1 to 4.8. Using these techniques give us a bility to produce suitable varistors for medical imaging modalities. \n\nR eferences: \n[1] Mateusz Baszczyk\, Piotr Dorosz\, Sebastian Głąb\, Wojc iech Kucewicz\, Łukasz Mik\, Maria Sapor\, SILICO︎ PHOTOMULTIPLIER GAI ︎ COMPE︎SATIO︎ ALGORITHM I︎ MULTIDETECTOR MEASUREME︎TS\, Metrol. Meas. Syst.\, Vol. XX (2013)\, No. 4\, pp. 655–666. \n[2] M. Ghafouria\ , M. parhizkar\, H. Bidadi\, S. MohammadiAref\, A.Olad\, Effect of Si cont ent on electrophysical properties of Si-polymercomposite varistors\, Mater ials Chemistry and Physics 147(2014)1117-1122. \n[3] Tayefi Ardebili\, Far anak \; Parhizkar\, Mojtaba \; Ghafouri\, Mohammad \;Velaee\, Arezo\, The effect of Si content on the electro physical properties of Si-poly Aniline based composite varistors\, 1stNational Conference on Physics- Islami Aza d University\,July(2016)619-622. \n[4] M. Parhizkar\, S. Mohammadi Aref\, M. Ghafouri\, A. Olad\, H. Bidadi\, Correlation between sintering pressure and electrical properties of hot varistors\, Mater. Sci. Semicond. Proces s. 17 143-148 (2014).\n\nhttps://indico.koza.if.uj.edu.pl/event/1/contribu tions/170/ LOCATION:Collegium Maius URL:https://indico.koza.if.uj.edu.pl/event/1/contributions/170/ END:VEVENT BEGIN:VEVENT SUMMARY:Recent progress and prospects of the LEPS2/BGOegg experiment at SP ring-8 DTSTART;VALUE=DATE-TIME:20190628T132500Z DTEND;VALUE=DATE-TIME:20190628T135000Z DTSTAMP;VALUE=DATE-TIME:20260609T214539Z UID:indico-contribution-1-90@indico.koza.if.uj.edu.pl DESCRIPTION:Speakers: Norihito Muramatsu (ELPH\, Tohoku University)\nHigh statistics data of hadron photoproduction have been collected by the BGOeg g experiment at the SPring-8 LEPS2 beamline\, where a photon beam with hig h degree of linear polarization is available in the tagged energy range of 1.3-2.4 GeV. The experiment is equipped with an “egg”-shaped electrom agnetic calorimeter\, which comprises of 1\,320 BGO crystals covering the polar angles of 24-144 degrees\, and associated charged particle detectors . With a liquid hydrogen target of 54 mm thickness\, we measured the diffe rential cross sections and photon beam asymmetries of single meson photopr oduction processes (e.g. \\pi^0\, \\eta\, \\omega) for the studies of bary on resonance spectroscopy. New experimental results will be shown with the extension to the high energy region for which the photon beam asymmetries have not been well measured. In addition\, we will report on the progress of our analyses about the \\eta^\\prime meson mass in a Carbon nucleus ta rget\, investigated by a) the two \\gamma invariant mass spectroscopy for the medium modification signal and b) the \\eta^\\prime-mesic nuclei searc h in the missing mass spectrum of a high momentum proton. The future prosp ects of the BGOegg experiment will be also presented as we have embarked o n the system upgrade.\n\nhttps://indico.koza.if.uj.edu.pl/event/1/contribu tions/90/ LOCATION:Collegium Maius URL:https://indico.koza.if.uj.edu.pl/event/1/contributions/90/ END:VEVENT BEGIN:VEVENT SUMMARY:Bounds on Planck-scale deformation of CPT from lifetimes and inter ference DTSTART;VALUE=DATE-TIME:20190626T073000Z DTEND;VALUE=DATE-TIME:20190626T075500Z DTSTAMP;VALUE=DATE-TIME:20260609T214539Z UID:indico-contribution-1-83@indico.koza.if.uj.edu.pl DESCRIPTION:Speakers: Wojciech Wiślicki (NCBJ)\nDeformed relativistic kin ematics\, expected to emerge in a flat-spacetime limit of quantum gravity\ , predicts the Planck-scale violation of CPT symmetry. Deformations of the action of CPT are derived from the kappa-deformed Poincare algebra. This entails a subtle but measurable corrections to characteristics of time evo lution\, e.g. particle lifetimes or oscillations in two-particle states at high energy.We argue that using the muon lifetime or quark flavour oscill ations we can bound $\\kappa>10^{14}$ GeV at LHC energy and move this limi t to $10^{16}$ GeV at future colliders.\n\nhttps://indico.koza.if.uj.edu.p l/event/1/contributions/83/ LOCATION:Collegium Maius URL:https://indico.koza.if.uj.edu.pl/event/1/contributions/83/ END:VEVENT BEGIN:VEVENT SUMMARY:Positronium imaging with total-body PET scanners DTSTART;VALUE=DATE-TIME:20190627T104000Z DTEND;VALUE=DATE-TIME:20190627T110500Z DTSTAMP;VALUE=DATE-TIME:20260609T214539Z UID:indico-contribution-1-111@indico.koza.if.uj.edu.pl DESCRIPTION:Speakers: Paweł Moskal (Jagiellonian University)\nDuring the positron emission tomography about 40% of positrons annihilations occur th rough the creation of positronium which may be trapped within and between molecules. Positronium decays in the patient body are sensitive to the na nostructure and metabolism of the tissues. This phenomenon is not used in the present PET diagnostics\, yet it is in principle possible to use envir onment modified properties of positronium as diagnostic biomarkers for can cer therapy. First in-vitro studies show differences of positronium mean l ifetime and production probability in the healthy and cancerous tissues\, indicating that they may be used as indicators for in-vivo cancer classifi cation. Here we present a method of positronium lifetime imaging in which the lifetime and position of positronium atoms is determined on an event- by-event basis. The method requires application of β+ decaying isotope em itting prompt gamma (e.g. 44Sc). We discuss the possibility of determining the time and position of positronium annihilation based on the three phot ons originating from the decays of ortho-positronium in the free intramole cular spaces as well as based on the back-to-back photons originating from the interaction of positronium with the surrounding atoms and bio-active molecules. The prompt gamma is used for the determination of the time of t he formation of positronium. We estimate that with the total-body PET scan ners the sensitivity of the positronium lifetime imaging\, which requires coincident registration of the back-to-back annihilation photons and the p rompt gamma is comparable to the sensitivities for the metabolic imaging w ith standard PET scanners.\n\nReferences:\n[1] P. Moskal et al.\, Phys. Me d. Biol. 64 (2019) 055017 \n\n[2] P. Moskal\, B. Jasinska\, E. Stepien\, S. Bass\, Nature Physics Review\, invited comment\, in print\n\n[3] P. Mos kal et al.\, U.S. Patent US 9\,851\,456 (2017)\, PL 227658 (2013)\n\nhttps ://indico.koza.if.uj.edu.pl/event/1/contributions/111/ LOCATION:Collegium Maius URL:https://indico.koza.if.uj.edu.pl/event/1/contributions/111/ END:VEVENT BEGIN:VEVENT SUMMARY:A method for time calibration of PET systems using fixed beta-plu s radioactive source DTSTART;VALUE=DATE-TIME:20190627T152000Z DTEND;VALUE=DATE-TIME:20190627T153500Z DTSTAMP;VALUE=DATE-TIME:20260609T214539Z UID:indico-contribution-1-171@indico.koza.if.uj.edu.pl DESCRIPTION:Speakers: Kamil Dulski (UJ)\nA method for time calibration of PET systems using fixed sources will be presented. Process of calibration of the J-PET detector [1-5] will be shown as an example. \n\nReferences\n[ 1] P. Moskal et al.\, Nucl. Instr. and Meth. A764\, 317 (2014)\n[2] P. Mos kal et al.\, Nucl. Instr. and Meth. A775\, 54 (2015)\n[3] P. Moskal et al. \, Phys. Med. Biol. 61\, 2025 (2016)\n[4] Sz. Niedzwiecki et al.\, Acta Ph ys. Polon. B48\, 1567 (2017)\n[5] P. Kowalski et al.\, Phys. Med. Biol. 63 \, 165008 (2018)\n\nhttps://indico.koza.if.uj.edu.pl/event/1/contributions /171/ LOCATION:Collegium Maius URL:https://indico.koza.if.uj.edu.pl/event/1/contributions/171/ END:VEVENT BEGIN:VEVENT SUMMARY:Challenges in radiotherapy planning: dose verification in the vici nity of the border of tissue-prosthesis medium DTSTART;VALUE=DATE-TIME:20190625T113000Z DTEND;VALUE=DATE-TIME:20190625T130000Z DTSTAMP;VALUE=DATE-TIME:20260609T214539Z UID:indico-contribution-1-112@indico.koza.if.uj.edu.pl DESCRIPTION:Speakers: Bartosz Kiełtyka (Marian Smoluchowski Institute of Physics\, Jagiellonian University in Krakow\, Poland)\nThe success or fail ure of radiotherapy largely depends on the accuracy with which the dose wi ll be delivered to a specific volume in the patient's body. In many cases\ , a change in dose by 3-4% may cause failure of the treatment. Both nation al and international guidelines on coherence and accuracy in ionizing radi ation dosimetry are focused on homogeneous media (i.e. water)\, however\, the human body is composed of elements of a high diversity in electron den sity (bones\, lungs\, teeth\, muscles) [1]. It became frequent that apart from natural heterogeneous structures\, many of patients have artificial e lements\, i.e. hip prostheses\, surgical rods\, stents or dental fillings. \nOne of the problems associated with radiotherapy planning for patients w ith endoprostheses (mainly the hip) is the inaccuracy of the algorithm cal culating the dose distribution in the treatment planning system for the ar ea in the vicinity of the border of tissue-prosthesis medium. Due to the u se of high-energy ionizing radiation\, during the treatment of patients wi th hip joint prosthesis\, the dose delivered during the therapy session ma y be significantly different compared to the treatment plan. This is relat ed to the change in the amount of energy deposited in the structure of irr adiated organs. The change usually manifests by the dose reduction. This i s due to the phenomena known as beam hardening by a high-density metal ele ment and secondary build-up of the dose at the border of the medium (secon dary build-up)\, resulting in an increase of the dose at the border of the medium\, giving up to 20% [2]. Such a large change in energy deposited in the tissues of treated patients may lead to skeletal changes (leading to fractures in the hip joint) or even necrosis and weakening of the fixation of the implant.\nTo verify the dose of ionizing radiation a phantom fille d with water (soft tissue equivalent) was used with the bone elements (imi tating hip joint) and metallic and ceramic (hip joint endoprostheses) plac ed in the stand. On acetabulum surface\, thermoluminescent microdosimeters (TLD) based on lithium fluoride (LiF) and Gafchromic EBT were placed. The first irradiation by medical linear accelerator was performed and the dos imeters are under readout procedure.\n \n\nREFERENCES\n[1]. Malicki J.\,Ś losarek K.\, 2016. Planowanie leczenia i dozymetria w radioterapii. Tom I\ , Gdańsk\, ISBN: 9788365672292 \n[2]. Reft C\, Alecu R\, Das IJ\, Gerbi B J\, Keall P\, Lief E\, Mijnheer BJ\, Papanikolaou N\, Sibata C\, Van Dyk J . 2003. Dosimetricconsiderations for patients with HIP prosthesesundergoin gpelvicirradiation. Report of the AAPM RadiationTherapyCommitteeTaskGroup 63 MedPhys. 30(6).1162-82.\n\nhttps://indico.koza.if.uj.edu.pl/event/1/con tributions/112/ LOCATION:Collegium Maius URL:https://indico.koza.if.uj.edu.pl/event/1/contributions/112/ END:VEVENT BEGIN:VEVENT SUMMARY:Odd-even staggering in the yields of intermediate mass fragments f rom p+Ag collisions at Ep=480 MeV DTSTART;VALUE=DATE-TIME:20190625T113000Z DTEND;VALUE=DATE-TIME:20190625T130000Z DTSTAMP;VALUE=DATE-TIME:20260609T214539Z UID:indico-contribution-1-46@indico.koza.if.uj.edu.pl DESCRIPTION:Speakers: Udai Singh (Jagiellonian University\, Crakow)\nThe e xperimental total production cross sections of intermediate mass fragments (isotopes of Li\, Be\, B\, C\, N\, O\, F\, Ne\, Na\, and Mg) were extract ed by the integration of dsigma/dOmega dE data measured at several angles for p+Ag collisions at proton beam energy of 480 MeV. The total cross sect ions show typical odd-even staggering (OES) when presented as a function o f the atomic number Z of ejectiles. The effect is the strongest for produc ts with T3=(N-Z)/2 =0 and 1. Similar behavior is observed for theoretical cross sections evaluated in the two-step model in which the first stage of the reaction is described by intranuclear cascade INCL++ and the second s tage by GEMINI++ model. The OES seems to be even more pronounced for theor etical than for the experimental cross sections.\n\nhttps://indico.koza.if .uj.edu.pl/event/1/contributions/46/ LOCATION:Collegium Maius URL:https://indico.koza.if.uj.edu.pl/event/1/contributions/46/ END:VEVENT BEGIN:VEVENT SUMMARY:CP symmetry test with neutrinos DTSTART;VALUE=DATE-TIME:20190626T075500Z DTEND;VALUE=DATE-TIME:20190626T082000Z DTSTAMP;VALUE=DATE-TIME:20260609T214539Z UID:indico-contribution-1-81@indico.koza.if.uj.edu.pl DESCRIPTION:Speakers: Akihiro Minamino (Yokohama National University)\nWhy the universe consists of matters only\, instead of consisting of equal nu mber of matters and antimatter\, is one of the fundamental questions about the universe. One of the conditions required for the matter-dominated uni verse is the violation of Charge-Parity (CP) symmetry. If CP violation occ urs in neutrinos\, the oscillation probabilities of neutrinos and antineut rinos will be different. The recent results and the future prospects of CP symmetry test with neutrinos from the long-baseline neutrino oscillation experiments are reviewed in the talk. In particular\, I will focus on main ly Japan-based projects\, T2K and Hyper-Kamiokande.\n\nhttps://indico.koza .if.uj.edu.pl/event/1/contributions/81/ LOCATION:Collegium Maius URL:https://indico.koza.if.uj.edu.pl/event/1/contributions/81/ END:VEVENT BEGIN:VEVENT SUMMARY:Measurement of $\\pi^{0}\\pi^{+/-}$ photoproduction off the deuter on and D-butanol targets DTSTART;VALUE=DATE-TIME:20190628T140500Z DTEND;VALUE=DATE-TIME:20190628T142000Z DTSTAMP;VALUE=DATE-TIME:20260609T214539Z UID:indico-contribution-1-107@indico.koza.if.uj.edu.pl DESCRIPTION:Speakers: Debdeep Ghosal (University of Basel)\nThe research w ork of Nuclear and Particle Physics group at University of Basel is center ed around Hadron Physics sector. Photoproduction of Mesons provides an eff icient tool for the study of decays of nucleon resonances and the excitati on spectrum of hadrons tells us about the internal degrees of freedom. Thu s to know the internal structural details of nucleons and mesons\, investi gation of excited nucleon states via photoproduction of mesons and the mod ification of the properties of nucleon resonances and mesons are being stu died quite extensively.\n Our group is involved in some international c ollaborations among which the research works related to photon induced mes on production are carried out in Crystal Ball A2 with MAMI(Mainz) and Crys tal Barrel ELSA(Bonn) collaborations.\n In the presentation\, research involved in the Crystal Ball experiment in MAMI as well as my analysis wor k including few preliminary results in the context of photoproduction of d ouble pions with unpolarized and polarized deuteron targets will mainly be discussed.\n\nhttps://indico.koza.if.uj.edu.pl/event/1/contributions/107/ LOCATION:Collegium Maius URL:https://indico.koza.if.uj.edu.pl/event/1/contributions/107/ END:VEVENT BEGIN:VEVENT SUMMARY:Photoproduction of mesons off quasifree nucleons and light nuclei DTSTART;VALUE=DATE-TIME:20190624T150500Z DTEND;VALUE=DATE-TIME:20190624T153000Z DTSTAMP;VALUE=DATE-TIME:20260609T214539Z UID:indico-contribution-1-95@indico.koza.if.uj.edu.pl DESCRIPTION:Speakers: Bernd Krusche (University of Basel)\nPhotoproduction of mesons off nuclei is important for several different topics. Reactions with free and quasifree nucleons (mainly protons and neutrons bound in th e deuteron) have given much new input for the investigation of the excitat ion spectrum of the nucleon. For this\, experimentally mainly the explorat ion of several polarization observables (circularly and linearly polarized beams\, longitudinally and transversally polarized beams)\, in addition t o differential cross sections\, is important. Also the measurement of reac tions with mesons pairs in the final state (in particular $\\pi\\pi$ and $ \\pi\\eta$) has opened new windows to the nuclear excitation spectrum beca use such reactions are sensitive to higher lying states with a more compli cated excitation structure which tend to de-excite in sequential decays vi a intermediate excited states. During the last few years techniques have b een developed to study such reactions also for quasifree neutrons bound in light nuclei\, which is necessary to disentagle the isospin structure of the electromagnetic excitations. In the meantime\, even double-polarizatio n observables for the production of neutral meson pairs off quasifree neut rons are experimentally accessible.\n\nFurthermore\, photoproduction of me sons off nuclei is also a very valuable testing field for meson-nucleon in teractions and the production of exotic hadronic states. The nature of the narrow states observed for the production of eta mesons from light nuclei are still not understood and controverselly discussed. Also the possible manifestation of di-baryonic states in coherent double $\\pi^0$ production off the deuteron is under discussion. Recently\, also several new data se ts for photoproduction of mixed-charged pion pairs were collected\, which are sensitive to the contribution of the $\\rho$-meson to photoproduction in the second resonance region\, which is very important for the strong su ppression of the second resonance peak for nuclear targets which is assume d to be a nuclear in-medium effect. We will give a summary of recent resul ts.\n\nhttps://indico.koza.if.uj.edu.pl/event/1/contributions/95/ LOCATION:Collegium Maius URL:https://indico.koza.if.uj.edu.pl/event/1/contributions/95/ END:VEVENT BEGIN:VEVENT SUMMARY:Closing of the conference DTSTART;VALUE=DATE-TIME:20190628T144000Z DTEND;VALUE=DATE-TIME:20190628T150000Z DTSTAMP;VALUE=DATE-TIME:20260609T214539Z UID:indico-contribution-1-172@indico.koza.if.uj.edu.pl DESCRIPTION:https://indico.koza.if.uj.edu.pl/event/1/contributions/172/ LOCATION:Collegium Maius URL:https://indico.koza.if.uj.edu.pl/event/1/contributions/172/ END:VEVENT BEGIN:VEVENT SUMMARY:Water equivalence of various 3D printed materials for proton thera py - Monte Carlo simulation\, treatment planning modelling and validation by measurements DTSTART;VALUE=DATE-TIME:20190625T113000Z DTEND;VALUE=DATE-TIME:20190625T130000Z DTSTAMP;VALUE=DATE-TIME:20260609T214539Z UID:indico-contribution-1-115@indico.koza.if.uj.edu.pl DESCRIPTION:Speakers: Agnieszka Wochnik (Institute of Nuclear Physics PAN) \n### Purpose\nKnowledge of stopping power in various materials used in th e proton therapy is essential for the correct estimation of dose distribut ion in the patient. Differences between materials result from different cr oss –sections for interaction of primary protons and production of secon dary particles from non-elastic nuclear reactions. One of the most commonl y used parameters for characterizing a given material is Water Equivalent Thickness (WET) and corresponding Water Equivalent Ratio (WER). WER is def ined as the dimensionless ratio between mass thickness of water (in g/cm2) which causes the same energy loss of the proton beam as in given material and given material mass thickness (in g/cm2). \n\n### Materials and Metho ds\nIn this work WER of three selected materials – thermoplastics: Polyl actic Acid (PLA)\, Acrylonitrilebutadiene Styrene (ABS) and Polyethylene T erephthalate Glycol (PETG) - commonly used in additive manufacturing tech nology was measured by a passive proton beam produced in AIC-144 cyclotron at the Institute of Nuclear Physics PAN in Krakow and Marcus chamber type 23343. Three plates with different thicknesses of 0.5\, 1 and 2 cm were p repared for each material. For the PLA material\, the influence of the pri nting direction on the Bragg peak parameters was also analyzed - an additi onal set of three plates for another printing plane was printed. Measured results were then compared with that predicted by treatment planning syste m (TPS) and with Monte Carlo simulation performed by means of the FLUKA co de. Simulations were performed for theoretical elemental compositions of t he tested materials. The Bragg peak parameters were also compared\, i.e. r esidual range 90% (R90)\, full width at half maximum (FWHM) and distall fa ll-off (DFO).\n### Results\nThe agreement within 0.5-1% was found between results obtained from the measurement and the Monte Carlo simulation. Dis crepancies may result from using in simulations nominal compositions of ma terials\, not confirmed by chemical analysis. 3-5% differences were observ ed in the value of the WER parameter between measurement and the WER value obtained from TPS based on the calibration curve. \n### Conclusions\nIt w as concluded that the application of 3D printing materials in proton thera py is possible and safe. However\, the high precision requirements in radi otherapy make it necessary to overwrite in the treatment planning system t he printed material with the known value of Hounsfield Units (HU)\, in ord er to obtain the WER value in accordance with the measurements. The known elemental compositions are similar to the composition of human tissues\, s o they can be treated as part of the patient during preparing treatment pl ans. However\, a good knowledge of different material parameters is needed before being applied to radiotherapy treatments.\n\nhttps://indico.koza.i f.uj.edu.pl/event/1/contributions/115/ LOCATION:Collegium Maius URL:https://indico.koza.if.uj.edu.pl/event/1/contributions/115/ END:VEVENT BEGIN:VEVENT SUMMARY:Correlations of observables in few-nucleon systems DTSTART;VALUE=DATE-TIME:20190625T113000Z DTEND;VALUE=DATE-TIME:20190625T130000Z DTSTAMP;VALUE=DATE-TIME:20260609T214539Z UID:indico-contribution-1-50@indico.koza.if.uj.edu.pl DESCRIPTION:Speakers: Yuriy Volkotrub (Jagiellonian University)\nThe ab-in itio theoretical study of the three-nucleon (3N) observables for the nucle on elastic and inelastic scattering on the deuteron is possible using real istic models of nuclear forces. Such models contain a number of free param eters whose values are typically fixed using the two-nucleon data. In case of few models\, as the One-Pion-Exchange-Gaussian (OPE-Gaussian) force [1 ] or the chiral force with the semilocal momentum-space regularization [2] derived by Bochum group even beyond the fifth order of chiral expansion ( N4LO)\, in addition to the central values of parameters also their correla tion matrix has been determined. The knowledge of the correlation matrix o f the potential parameters opens new possibilities in studies of few-nucle on systems. In this presentation I will give two examples of such studies: \n\nFirstly\, we have applied the OPE-Gaussian force and the chiral N4LO p otential with the semilocal momentum space regularization to study the pro pagation of uncertainties of two-nucleon interaction parameters to 3N scat tering observables [3\, 4] and have determined corresponding statistical u ncertainty of these observables for the first time.\n\nSecondly\, we have investigated correlations between various two- and three-nucleon observabl es as well as between observables and specific potential parameters. While the complex structure of 3N scattering equations makes analytical studies of such correlations extremely difficult\, the statistical approach can b e here successfully applied. Knowledge of correlations between observables increases our understanding of 3N Hamiltonian. That piece of information is also necessary for a correct and precise performing the fitting procedu re for many-body interactions. Our study indicates which of the 3N observa bles are particularly useful in this context.\n\n1. R. Navarro Pérez\, J. E. Amaro\, and E. Ruiz Arriola\, Phys. Rev. C89\, 064006 (2014).\n\n2. P. Reinert\, H. Krebs\, and E. Epelbaum\, Eur. Phys. J. A54\, 86 (2018).\n\n 3. R. Skibiński et al.\, Phys. Rev. C98\, 014001 (2018).\n\n4. Yu. Volkot rub et al.\, Acta Phys. Polon. B50\, 367 (2019).\n\nhttps://indico.koza.if .uj.edu.pl/event/1/contributions/50/ LOCATION:Collegium Maius URL:https://indico.koza.if.uj.edu.pl/event/1/contributions/50/ END:VEVENT BEGIN:VEVENT SUMMARY:Application of multivariate analysis in search of the KS→3π0 de cay in the KLOE-2 experiment DTSTART;VALUE=DATE-TIME:20190625T113000Z DTEND;VALUE=DATE-TIME:20190625T130000Z DTSTAMP;VALUE=DATE-TIME:20260609T214539Z UID:indico-contribution-1-152@indico.koza.if.uj.edu.pl DESCRIPTION:Speakers: Szymon Parzych (Jagiellonian University)\nViolation of the combination of two discrete symmetries C (charge conjugation) and P (parity) is a very important mechanism in the Standard Model. It is\, for example\, one of the conditions for existance of asymmetry between matter and antimatter in the Universe. One of the purely CP-violating process\, which is still not discovered is the $K_S \\rightarrow 3\\pi^0$ decay.\nTh e best upper limit on the branching ratio of this process BR($K_S \\righta rrow 3\\pi^0$) $< 2.7 \\times 10^{-8}$ was measured with the KLOE detector operating at the DA$\\Phi$NE collider located in the Italian National Cen ter for Nuclear Physics in Frascati [1]. At the same time\, predictions ba sed on the Standard Model give us BR($K_S \\rightarrow 3\\pi^0$) $\\sim 2 \\times 10^{-9}$\, which is one order of magnitude smaller than the measur ed upper limit. Thus\, further investigation of this process is needed to test the Standard Model predictions.\nIn this respect\, analysis of the KL OE-2 data sample [2] has been started aiming to significantly improve the present upper limit. As an alternative to the classic cut-based analysis\, we plan to use multivariate analysis algorithms. In this work we show pre liminary tests of available multivariate analysis algorithms applied to th e KLOE data\, to check the feasibility of this approach. The obtained resu lts are comparable to the cut-based analysis [1] with two times higher sig nal efficiency showing a big potential of this method.\n\n\nReferences\n[1 ] D. Babusci et al. [the KLOE Collaboration]\, Phys.Lett. B723 (2013) 54-6 0\n[2] G. Amelino-Camelia et al.\, Eur.Phys.J. C68 (2010) 619-681\n\nhttps ://indico.koza.if.uj.edu.pl/event/1/contributions/152/ LOCATION:Collegium Maius URL:https://indico.koza.if.uj.edu.pl/event/1/contributions/152/ END:VEVENT BEGIN:VEVENT SUMMARY:Nuclear deformation effects to the formation cross section of eta (958) mesic nucleus DTSTART;VALUE=DATE-TIME:20190625T113000Z DTEND;VALUE=DATE-TIME:20190625T130000Z DTSTAMP;VALUE=DATE-TIME:20260609T214539Z UID:indico-contribution-1-20@indico.koza.if.uj.edu.pl DESCRIPTION:Speakers: Suzuna Kinutani (Nara Women's University)\nThe signi ficantly large mass of the $\\eta(958)$ ($\\eta'$) meson within the other light pseudoscalar mesons is understood to be generated by the $\\rm U_{A} (1)$ anomaly and the chiral symmetry breaking. In the nuclear medium\, the $\\eta'$ mass is considered to be reduced due to a partial restoration of chiral symmetry [1]. The reduction of the $\\eta'$ mass leads to an attra ctive $\\eta'$-nucleus interaction and to a possible existence of $\\eta'$ -nucleus bound states\, namely $\\eta'$-mesic nuclei [2]. The $\\eta'$-mes ic nuclei are believed to provide new insights of the properties of $\\eta '$ meson and the aspects of strong interaction at finite nuclear density.\ n\n The first experiment to search for the $\\eta'$-mesic nuclei by the mi ssing mass spectroscopy in the $^{12}{\\rm C}(p\, d)$ reaction was perform ed at GSI [3\, 4\, 5] and the excitation energy spectrum of $^{11}{\\rm C} $ around $\\eta'$-meson threshold was obtained. Since no peak structure in dicating the $\\eta'$ bound states was found\, the upper limits of the for mation cross section and the constraints for the $\\eta'$-nucleus potentia l parameters were determined [5\, 6].\n\n In the analyses in Refs. [5\, 6] \, the $^{11} {\\rm C}$ core nucleus in the $\\eta'$-mesic nuclei was impl icitly assumed to have the standard nuclear density distribution as usual stable nuclei. However\, the latest theoretical work reported in Ref. [7] indicated the possible change of the density distribution of $^{11}{\\rm C }$ due to the interaction with $\\eta'$. Thus in this report we investigat e theoretically the nuclear deformation (compression) effects to the struc tures and the formation spectra of $\\eta'$-$^{11}{\\rm C}$ bound states t o provide the realistic basis to deduce the physical information from the experimental spectra.\n\n Reference\n\n [1] D. Jido\, H. Nagahiro and S. Hirenzaki\, Phys. Rev. C85 (2012) 032201.\n [2] H. Nagahiro and S. Hiren zaki\, Phys. Rev. Lett. 94 (2005) 232503.\n [3] K. Itahashi et al.\, Prog . Theor. Phys. 128 (2012) 601-613.\n [4] H. Nagahiro et al.\, Phys. Rev. C87(2013) no.4\, 045201.\n [5] Y. K. Tanaka et al.\, Phys. Rev. Lett. 117 (2016) no.20\, 202501.\n [6] Y. K. Tanaka et al.\, Phys. Rev. C97 (2018) no.1\, 015202.\n [7] D. Jido\, H. Masutani and S. Hirenzaki\, arXiv:1808 .1014[nucl-th]\, accepted to PETP\, 2019.\n\nhttps://indico.koza.if.uj.edu .pl/event/1/contributions/20/ LOCATION:Collegium Maius URL:https://indico.koza.if.uj.edu.pl/event/1/contributions/20/ END:VEVENT BEGIN:VEVENT SUMMARY:Understanding digital gamma-ray time-of-flight response for fast s cintillation detectors at giga sampling digitization rate DTSTART;VALUE=DATE-TIME:20190625T113000Z DTEND;VALUE=DATE-TIME:20190625T130000Z DTSTAMP;VALUE=DATE-TIME:20260609T214539Z UID:indico-contribution-1-151@indico.koza.if.uj.edu.pl DESCRIPTION:Speakers: Neha Chug (Department of Physics\, Panjab University )\nRecently\, the developments on digital time of flight are made for the pair of fast scintillator detectors \; BaF2-LaBr3\, BaF2-BC501A\, and LaBr 3-BC501A using CAEN 250 mega samples per second (MSPS)\, model V1720\, and 500 MSPS\, model DT5730 digitizers [1\,2]. Study reveals the improvement in the TOF resolution from 12%-17% while digitizing the signal from 250 MS PS to 500 MSPS rate. To investigate more in this area\, we collected the coincidence signals from same detector pairs\, irradiated by 22Na source\, at 500 MSPS and 2.5 giga samples per second. Signals from each detector p air were digitized by using LeCroy HDO5000A digital oscilloscope. Differen t derived digitization rates \; 1.6 GSPS\, 1.25 GSPS\, 833 MSPS\, 625 MSPS \, 333 MSPS and 250 MSPS\, were generated by signal down sampling method. Signal time marker from each detector pair is calculated by using Digital Constant Fraction (DCF) algorithm. Minimum TOF broadening is noted after t he optimization proceedure by altering delay and fraction for each detecto r pair. On comparing this TOF width at different sampling rates\, it is ob served that this value saturates after 500 MSPS rate onwards\, found true for all the pairs. The values are found to be 0.53 ns\, 0.98 ns and 1 ns f or the aforementioned detector pairs respectively. To explain this experim ental observation\, we studied the DCF Transition region (TR) distribution s of LaBr3 and BC501A detectors. It reveals a constant slope of TR at diff erent sampling rates. To furthur explain TOF width computationally\, a sim ple pulse fitting method is adopted using Landu Distribution function. Eve nt-by-Event fitting of the experimental pulses followed by TOF calculation explains the experimental TOF broadening for each detector pair.\n\nhttps ://indico.koza.if.uj.edu.pl/event/1/contributions/151/ LOCATION:Collegium Maius URL:https://indico.koza.if.uj.edu.pl/event/1/contributions/151/ END:VEVENT BEGIN:VEVENT SUMMARY:Monte Carlo study of image noise contributions of a prototype prot on computed tomography scanner DTSTART;VALUE=DATE-TIME:20190625T113000Z DTEND;VALUE=DATE-TIME:20190625T130000Z DTSTAMP;VALUE=DATE-TIME:20260609T214539Z UID:indico-contribution-1-118@indico.koza.if.uj.edu.pl DESCRIPTION:Speakers: Reinhard W. Schulte (Loma Linda University)\nProton computed tomography (pCT) is an imaging modality for generation of accurat e relative-stopping-power images. Such images are used in the context of p article therapy for treatment-planning and dose-recalculation according to the anatomy-of-the-day. A recently proposed method for fluence-modulated pCT (FMpCT) imaging may further reduce imaging dose while maintaining ima ge quality within a region-of-interest\, i.e. the treatment beam path.\n\n To enable future FMpCT acquisitions we present results of a detailed Monte Carlo study of contributions to image noise of the phase II prototype pCT scanner. The scanner was modelled using the Geant4 framework taking into account quenching effects in the scintillators of the energy detector and a beam model from experimental data of the tracking detectors. Based on an image guide\, variance levels at the detector can be calculated and disen tangled into contributions from various physical effects\, such as multipl e Coulomb scattering (MCS) or energy straggling. An important noise contri bution was the object-specific interplay of heterogeneities and MCS. Final ly\, accuracy of the variance prediction was compared to measurements.\n\n https://indico.koza.if.uj.edu.pl/event/1/contributions/118/ LOCATION:Collegium Maius URL:https://indico.koza.if.uj.edu.pl/event/1/contributions/118/ END:VEVENT BEGIN:VEVENT SUMMARY:Discovery of CP violation in charm decays at LHCb experiment and p rospects for Run III and Run IV DTSTART;VALUE=DATE-TIME:20190625T113000Z DTEND;VALUE=DATE-TIME:20190625T130000Z DTSTAMP;VALUE=DATE-TIME:20260609T214539Z UID:indico-contribution-1-102@indico.koza.if.uj.edu.pl DESCRIPTION:Speakers: Jakub Ryżka (AGH UST)\nThe existence of CP violatio n in the decays of strange and beauty mesons is very well established expe rimentally. On the contrary\, CP violation in the decays of charmed partic les has never been observed before (2018). During the LHC Run I and Run II the LHCb collaboration has collected a huge sample of charmed hadrons. Th is sample enables some of the most sensitive searches for CP violation eve r performed. In this presentation\, the results of the latest search for t ime-integrated CP violation in $D^0 \\rightarrow K^{-}K^{+}$ and $D^0 \\ri ghtarrow \\pi^{-}\\pi^{+}$ decays\, performed using the full data set coll ected by LHCb corresponding to an integrated luminosity of $9fb^{−1}$\, will be discussed. The flavour of the decaying charm meson is determined b y looking at the charge of the pion from the strong decay $D^{*}(2010)^{+} \\rightarrow D^{0} \\pi^{+}$ for promptly produced $D^{0}$\, or at the ch arge of the muon in semileptonic $\\bar {B^0}\, B^{-} \\rightarrow D^{0} \\mu^{-} \\bar{\\nu}_{\\mu}X$ decays for secondary production of $D^{0}$. Also a brief prospects for further analyses (especially including $ \\Xi_ c$ barion decay) will be presented.\n\nhttps://indico.koza.if.uj.edu.pl/ev ent/1/contributions/102/ LOCATION:Collegium Maius URL:https://indico.koza.if.uj.edu.pl/event/1/contributions/102/ END:VEVENT BEGIN:VEVENT SUMMARY:The SIDDHARTA-2 Apparatus for Kaonic Deuterium X-Ray Spectroscopy at DAFNE DTSTART;VALUE=DATE-TIME:20190625T113000Z DTEND;VALUE=DATE-TIME:20190625T130000Z DTSTAMP;VALUE=DATE-TIME:20260609T214539Z UID:indico-contribution-1-21@indico.koza.if.uj.edu.pl DESCRIPTION:Speakers: Marlene Tüchler (Stefan Meyer Institute)\nKaonic at oms provide a perfect testing ground for studying the low-energetic\, non- perturbative regime of quantum chromodynamics. Since kaons are the lightes t mesons carrying strangeness\, they allow for a direct observation of the influence of the strong interaction on the kaonic atom ground state in th e form of an induced energy shift and broadened width. The SIDDHARTA-2 exp eriment\, located at the DAFNE collider in Frascati\, Italy\, aims to dete rmine this ground state shift and width in kaonic deuterium via X-ray spec troscopy.\nDue to the very low kaonic deuterium X-ray yield\, an improveme nt of the signal-to-background ratio of at least one order of magnitude is vital for the success of this measurement. This increase will be achieved in SIDDHARTA-2 through the implementation of three updates on the apparat us: a lightweight\, cryogenic gaseous target cell\, a large-area X-ray det ection system in the form of Silicon Drift Detectors\, and a veto system d edicated to background suppression. The veto system consists of the Veto-1 system for active shielding and the Veto-2 system for the discrimination against background originating from minimum ionising particles. The proper ties and characterisation of these updates will be presented.\n\nhttps://i ndico.koza.if.uj.edu.pl/event/1/contributions/21/ LOCATION:Collegium Maius URL:https://indico.koza.if.uj.edu.pl/event/1/contributions/21/ END:VEVENT BEGIN:VEVENT SUMMARY:Illuminating Antimatter: the ALPHA antihydrogen experiment at CERN DTSTART;VALUE=DATE-TIME:20190626T063000Z DTEND;VALUE=DATE-TIME:20190626T070500Z DTSTAMP;VALUE=DATE-TIME:20260609T214539Z UID:indico-contribution-1-167@indico.koza.if.uj.edu.pl DESCRIPTION:Speakers: Jeffrey Hangst (Aarhus University\, ALPHA Collaborat ion at CERN)\nAt CERN\, we have recently become able to study atoms of ant ihydrogen - the antimatter equivalent of hydrogen. The question to be addr essed is fundamental and profound: “Do matter and antimatter obey the sa me laws of physics?”. The Standard Model requires that hydrogen and anti hydrogen have the same spectrum. I will discuss the latest developments in antihydrogen physics: observation of the first laser-driven transition (1 S-2S) [1\,2] observation of the antihydrogen hyperfine structure [3]\, and observation of the Lyman-alpha transition [4]. To study antihydrogen\, it must first be produced\, trapped [5]\, and then held for long enough [6] to observe a transition - using very few anti-atoms. I will discuss the te chniques necessary to achieve the latest milestones\, and then consider th e future of optical and microwave spectroscopy\, as well as gravitational studies [7]\, with antihydrogen.\n\n1. Observation of the 1s-2s Transition in Trapped Antihydrogen\, M Ahmadi et al.\, (ALPHA Collaboration) Nature 541\, 506–510 (2017).\n2 Characterization of the 1S-2S transition in ant ihydrogen\, M Ahmadi et al.\, (ALPHA Collaboration)\, Nature 557\, 71–75 (2018).\n3\, Observation of the hyperfine spectrum of antihydrogen\, M Ah madi et al.\, (ALPHA Collaboration) Nature 548\, 66–69 (2017).\n4. Obser vation of the 1S–2P Lyman-α transition in antihydrogen\, M Ahmadi et al .\, (ALPHA Collaboration)\, Nature 561\, 211–215 (2018).\n5. Andresen\, G.B. et al.\, Trapped Antihydrogen\, Nature\, 468\, 673 (2010).\n6. Andre sen\, G. B. et al. Confinement of antihydrogen for 1\,000 seconds. Nature Physics 7\, 558 (2011).\n7. Amole\, C. et al.\, Description and first appl ication of a new technique to measure the gravitational mass of antihydrog en\, Nature Communications DOI: 10.1038/ncomms2787 (2013).\n\nhttps://indi co.koza.if.uj.edu.pl/event/1/contributions/167/ LOCATION:Collegium Maius URL:https://indico.koza.if.uj.edu.pl/event/1/contributions/167/ END:VEVENT BEGIN:VEVENT SUMMARY:The chiral forces with semilocal regularization applied to the deu teron photodisintegration below Eγ= 100 MeV DTSTART;VALUE=DATE-TIME:20190625T113000Z DTEND;VALUE=DATE-TIME:20190625T130000Z DTSTAMP;VALUE=DATE-TIME:20260609T214539Z UID:indico-contribution-1-47@indico.koza.if.uj.edu.pl DESCRIPTION:Speakers: Vitalii Urbanevych (Mgr)\nThe improved chiral nucleo n-nucleon (NN) interaction with the semi-local regularization in the momen tum space was derived recently [1] up to the fifth order of the chiral exp ansion (N4LO) and even some contributions from the next order have been te sted in so-called N4LO+ model. In comparison to the first generation of th e chiral potential [2] the regularization of the potential is now performe d in a semi-local way what leads to a much better control of finite-cutoff artifacts. Such a semi-local regularization has been already proposed in the [3] where it was applied in coordinate space. In recent work [1] an alternative approach for semi-local regularization performed directly in m omentum space was derived and used to construct the NN interaction. Beside the new regularization method also other important improvements\, like ne w way of fixing of parameters for pion-nucleon vertexes or new NN databas ed used to fix free low energy constants have been implemented in the mode l [1]. The new force leads in the nucleon-nucleon (nucleon-deuteron) scatt erings to very precise description of observables up to 300 (200) MeV and delivers only tiny dependence on the regularization parameter.\nThe chira l interaction of Ref. [1] has been never applied to study the electroma gnetic processes in two-nucleon system. We will present such first applica tions especially focusing on the dependence of predictions on the regulari zation parameters and on the chiral order used. It is well known\, that th e non-local regularization of the chiral forces lead to a strong dependenc e of the predictions on regularization parameters already at N2LO [4\,5\,6 ]. Using the semi-local regularization in the coordinate space improves th e data description both for the electromagnetic as well as for the weak pr ocesses [7]. In this contribution we\, for the first time\, extend the inv estigations from Ref. [7] to the chiral model with semi-local regularizati on in the momentum space [1] and\, in particular\, we will discuss the pre dictions for the deuteron photodisintegration reaction at the photon ener gy range up to 100 MeV. The comparison of predictions with the data and th e predictions based on older chiral models will be presented.\n[1] P.Reine rt\, H.Krebs\, and E.Epelbaum\, Eur. Phys. A54\, 86 (2018).\n[2] E.Epelbau m\, W.Glöckle\, Ulf-G.Meißner\, Nucl. Phys A637\, 107 (1998)\; Nucl. Ph ys. A671\, 295 (2000).\n[3] E.Epelbaum\, H.Krebs\, and Ulf-G.Meißner\, Ph ys. Rev. Lett. 115\, 122301 (2015).\n[4] R.Skibiński\, J.Golak\, H.Witał a\, W.Glöckle\, A.Nogga\, and E.Epelbaum\, Acta Phys. Polon. B37\, 2905 ( 2006).\n[5] R.Skibiński\, J.Golak\, D.Rozpędzik\, K.Topolnicki\, and H.W itała\, Acta Phys. Polon. B46\, 159 (2015).\n\nhttps://indico.koza.if.uj. edu.pl/event/1/contributions/47/ LOCATION:Collegium Maius URL:https://indico.koza.if.uj.edu.pl/event/1/contributions/47/ END:VEVENT BEGIN:VEVENT SUMMARY:Luminescence behaviors of Sm3+ doped high density tungsten gadolin ium borate scintillating glass DTSTART;VALUE=DATE-TIME:20190628T115500Z DTEND;VALUE=DATE-TIME:20190628T121500Z DTSTAMP;VALUE=DATE-TIME:20260609T214539Z UID:indico-contribution-1-4@indico.koza.if.uj.edu.pl DESCRIPTION:Speakers: Jakrapong Kaewkhao (Physics Program\, Faculty of Sci ence and Technology\, Nakhon Pathom Rajabhat University\, Nakhon Pathom\, 73000\, Thailand)\nSm-activated scintillating glasses with high WO3 concen tration up to 42.5 mol% were studied in this work. The effects of Sm2O3 co ncentration on the density\, transmission and various (photo-\, X-ray indu ced-\, proton- and temperature dependent-) luminescence properties have be en investigated. The glasses possess a high density that is more than 6.00 g/cm3. From the transmission spectra\, glass samples show the several abs orption peaks in visible light and near-infrared region\, which confirm Sm 3+ ion in glass matrices. Energy transfer from Gd3+ to Sm3+ takes place in the glasses which resulted to the strongest emission around 600 nm of Sm3 + (4G5/2→6H7/2) in the photo-\, X-ray induced- and proton luminescence s pectra. The optimum concentration of Sm2O3 for WO3-Gd2O3˗B2O3 glass is 1. 0 mol% which performed the highest emission intensity in these three types of luminescence spectra. In 1.0 mol% doped glass\, the decay time under p ulse X-ray excitation was measured and found to be 0.29 ms. The temperatur e dependent luminescence in a range of 10 K – 300 K of 1.0 mol% doped gl ass was measured under uv-laser excitation. The emission intensity of glas s increased 4 times from with decreasing of temperature. In this work\, th e fabricated WO3-Gd2O3˗B2O3 glasses doped with Sm2O3 show the strong visi ble luminescence under visible light\, X-ray and proton excitation. This g lasses perform a potential for applications in the high energy / nuclear p hysics\, radiation monitoring and homeland security.\n\nhttps://indico.koz a.if.uj.edu.pl/event/1/contributions/4/ LOCATION:Collegium Maius URL:https://indico.koza.if.uj.edu.pl/event/1/contributions/4/ END:VEVENT BEGIN:VEVENT SUMMARY:Neutron Capture Enhanced Particle Therapy (NCEPT): A new frontier in cancer treatment DTSTART;VALUE=DATE-TIME:20190626T150000Z DTEND;VALUE=DATE-TIME:20190626T152500Z DTSTAMP;VALUE=DATE-TIME:20260609T214539Z UID:indico-contribution-1-168@indico.koza.if.uj.edu.pl DESCRIPTION:Speakers: Mitra Safavi-Naeini (Australian Nuclear Science and Technology Organisation (ANSTO))\nNeutron capture enhanced particle therap y (NCEPT) is a radical new paradigm in radiotherapy being developed by an international team led by researchers at the Australian Nuclear Science an d Technology Organisation (ANSTO). \n\nNCEPT combines the precision of par ticle therapy with the cancer-specific targeting capability of neutron cap ture therapy (NCT). NCEPT captures internally generated slow (thermal) neu trons\, produced at and around the target volume to (Figure 1):\n\n1. Enha nce the dose to target\n2. Reduce the dose to normal tissue\n3. Simultaneo usly target out-of-field satellite lesions\n\n[Figure 1: Conformal deliver y of planned radiation dose to the target volume with particle beam (red)\ ; the resulting thermal neutron field (white) is utilised to (1) Enhance t he dose at target and (2) deliver a comparable dose to satellite lesions v ia targeted delivery of a neutron capture agent.][1]\n\nNCEPT leverages lo w toxicity $^{10}$B and $^{157}$Gd-enriched neutron capture agents which c oncentrate in cancer cells\, already approved or under development for oth er medical applications.\n\nSimulations and experiments on cancer cells ha ve yielded extremely compelling results\, indicating that NCEPT achieves e quivalent cancer cell control with between $\\frac{1}{3}$ and $\\frac{1}{5 }$ of the radiation dose compared to helium and carbon ion therapy alone.\ n\n\n [1]: https://drive.google.com/file/d/1es1fdEUrsXcme18ggBYi4oJ-4Ec1F zmY/view\n\nhttps://indico.koza.if.uj.edu.pl/event/1/contributions/168/ LOCATION:Collegium Maius URL:https://indico.koza.if.uj.edu.pl/event/1/contributions/168/ END:VEVENT BEGIN:VEVENT SUMMARY:Innovative image-guidance solutions for ion beam therapy DTSTART;VALUE=DATE-TIME:20190624T070000Z DTEND;VALUE=DATE-TIME:20190624T073500Z DTSTAMP;VALUE=DATE-TIME:20260609T214539Z UID:indico-contribution-1-52@indico.koza.if.uj.edu.pl DESCRIPTION:Speakers: Katia Parodi (Ludwig Maximilian University of Munich \, Germany)\nSince the establishment of the first few hospital-based facil ities in the 1990s\, ion beam therapy has rapidly emerged as a promising r adiation therapy modality\, due to its superior ability to concentrate the beam energy to the tumour while better sparing normal tissue and critical organs in comparison to the widely established photon therapy. However\, to enable full clinical exploitation of its advantageous ballistic precisi on and advanced beam delivery strategies\, novel solutions of in-room imag e guidance are warranted to provide accurate information of the patient po sition and tissue properties prior to treatment for adaptive therapy schem es\, along with in-vivo range verification during or after treatment towar d the final goal of dose-guided radiation therapy. This talk will review l atest imaging innovations in ion beam therapy\, which are just entering th e clinic or are being investigated for possible clinical use in the near f uture\, with special focus on new instrumentation largely exploiting techn ologies well established in high-energy physics\, nuclear physics and acou stics.\n\nhttps://indico.koza.if.uj.edu.pl/event/1/contributions/52/ LOCATION:Collegium Maius URL:https://indico.koza.if.uj.edu.pl/event/1/contributions/52/ END:VEVENT BEGIN:VEVENT SUMMARY:MonteCarlo Simulations of the SiFi-CC DTSTART;VALUE=DATE-TIME:20190625T113000Z DTEND;VALUE=DATE-TIME:20190625T130000Z DTSTAMP;VALUE=DATE-TIME:20260609T214539Z UID:indico-contribution-1-22@indico.koza.if.uj.edu.pl DESCRIPTION:Speakers: Jonas Kasper (III. Physics Institute B RWTH Aachen U niversity)\nIn 2014 NuPECC listed online monitoring of the beam range in h adron therapy as one of the most important challenges in hadron therapy. M onitoring systems based on the detection of prompt gamma radiation are con sidered as one of the most promising options. Different detector setups ar e developed and tested around the world. A Compton camera\, yielding the f ull three-dimensional dose distribution\, is one of the favoured setups. \ nThe SiFi-CC project\, being a joint effort of colleagues from the Jagiell onian University in Kraków and RWTH Aachen University\, aims at a develop ment of a Compton camera based entirely on heavy scintillating fibers read out by SiPMs. The setup design is being optimized for its future performa nce on the way of Monte Carlo simulations using the GEANT4 package. Differ ent scintillating materials\, fiber properties and setup geometries are si mulated and the resulting position\, energy and time resolutions are deter mined. Results of the simulations will be presented and compared to result s of laboratory measurements.\n\nhttps://indico.koza.if.uj.edu.pl/event/1/ contributions/22/ LOCATION:Collegium Maius URL:https://indico.koza.if.uj.edu.pl/event/1/contributions/22/ END:VEVENT BEGIN:VEVENT SUMMARY:Polarized beams for applications in chemistry and biology\, and so on medicine DTSTART;VALUE=DATE-TIME:20190626T123000Z DTEND;VALUE=DATE-TIME:20190626T130500Z DTSTAMP;VALUE=DATE-TIME:20260609T214539Z UID:indico-contribution-1-145@indico.koza.if.uj.edu.pl DESCRIPTION:Speakers: Magdalena Kowalska (UNIGE\, CERN)\nThis talk tells t he story of how we are applying polarised radionuclei not only in nuclear physics and fundamental-interaction studies\, but now also in chemistry an d biology\, and soon also in medicine. The common point of these versatile studies is the fact that beta or gamma decay from polarized radioactive n uclei is anisotropic in space. \nOur experimental setup devoted to laser p olarization of short-lived nuclei [1] is located at the CERN-ISOLDE facili ty\, where over 1300 different isotopes are available for research. Since its commissioning in 2016\, we have already used it to polarize 35Ar beam with the aim to determine more precisely the Vud matrix element of the CKM quark mixing matrix [2]. Soon\, we plan to perform nuclear structure stud ies by measuring angular beta-gamma coincidences in order to assign spins and parities of nuclear excited states in regions of the nuclear chart\, w here observations are especially challenging for nuclear theory [3].\nThe transfer of our expertise to chemistry and biology concerns beta-detected Nuclear Magnetic Resonance (NMR)\, which is up to 10 orders of magnitude m ore sensitive than conventional NMR [3]. This is thanks to a much higher d egree of spin polarization and a much more efficient resonance detection v ia beta-decay asymmetry. We aim at using it for the studies of the interac tion of proteins and DNA with metal ions\, such as Na\, Cu\, Zn\, which ar e crucial in many biological processes\, including Alzheimer’s and Parki nson’s diseases. The first studies concern Na interaction with DNA G-qua druplex structures [4]. A further development concerns gamma-detected Magn etic Resonance Imaging (MRI)\, which can combine the strengths of the high sensitivity of PET and SPECT techniques with high spatial resolution of M RI by using polarized beams of longer-lived gamma-decaying nuclei. The fir st nuclei we aim at polarizing here are long-lived isomers of Xe [5].\nIn this talk I will introduce asymmetry of beta and gamma decay\, will mentio n principles of laser polarization and the experimental setup\, and will c oncentrate on the first applications of beta-NMR in chemistry and biology and gamma-MRI in medical diagnosis. \n\n[1] M. Kowalska et al.\, J. Phys G . 44 (2017) 084005\; W. Gins et al.\, Nucl. Instr. and Meth. A 925\, 24 (2 019)\, https://doi.org/10.1016/j.nima.2019.01.082 \n[2] W Gins\, PhD Thesi s (2019)\, KU Leuven\, https://cds.cern.ch/record/2654181?ln=en \n[3] M Ma durga\, M Kowalska\, et al.\, ISOLDE Scientific Proposal (2017) https://cd s.cern.ch/record/2288198?ln=en \n[4] M Kowalska et al\, ISOLDE Scientific Proposal (2018)\, https://cds.cern.ch/record/2299798?ln=en \n[5] R. Engel\ , master thesis\, U Oldenburg\, https://cds.cern.ch/record/2638538?ln=en\n \nhttps://indico.koza.if.uj.edu.pl/event/1/contributions/145/ LOCATION:Collegium Maius URL:https://indico.koza.if.uj.edu.pl/event/1/contributions/145/ END:VEVENT BEGIN:VEVENT SUMMARY:Spheroids as a model for tumor radiosensitivity and radiolabeling tests DTSTART;VALUE=DATE-TIME:20190626T130500Z DTEND;VALUE=DATE-TIME:20190626T133000Z DTSTAMP;VALUE=DATE-TIME:20260609T214539Z UID:indico-contribution-1-144@indico.koza.if.uj.edu.pl DESCRIPTION:Speakers: Ewa Stepien (Jagiellonian University\, Dept. of Medi cal Phisics)\nSpheroids are multicellular and tissue –like structured in vitro 3D models which mimic microenvironment in vivo. Unlike common 2D i n vitro cell models\, spheroids reflect the cellular milieu and the pathop hysiological conditions inside tumor nodules. Recently they are widely use d in drug testing and radiation studies. Results obtained from 3D cell sph eroids can be better translated to in vivo animal studies or clinical tria ls. In this presentation I will tell about technical issues related to sph eroid generation\, comparison of molecular properties of spheroids with si mple 2D cell couture techniques and application of spheroids in radiobiolo gy. Most of results will be related with melanoma cancer diagnostic and tr eatment.\n\nhttps://indico.koza.if.uj.edu.pl/event/1/contributions/144/ LOCATION:Collegium Maius URL:https://indico.koza.if.uj.edu.pl/event/1/contributions/144/ END:VEVENT BEGIN:VEVENT SUMMARY:Radiotherapy\, Radio-Diagnostics and Radiation Protection – How do They Differ? DTSTART;VALUE=DATE-TIME:20190626T155000Z DTEND;VALUE=DATE-TIME:20190626T162000Z DTSTAMP;VALUE=DATE-TIME:20260609T214539Z UID:indico-contribution-1-146@indico.koza.if.uj.edu.pl DESCRIPTION:Speakers: Michael P.R. Waligórski (Institute of Nuclear Physi cs\, Polish Academy of Sciences)\nDifferences between radiotherapy (RT)\, radio-diagnostics (RD) and radiation protection (RP) will be discussed wit h respect to their general aims\, doses\, dose-rates and volumes involved\ , and their dominant biological mechanisms. In RT the objective is to deli ver a curative dose as high as reasonably achievable to a rather small tar get volume\, in order to completely inactivate the metastasized cells with in that volume\, while maintaining the exposure of neighbouring critical o rgans or healthy tissues as low as possible (the “AHARA” principle). I n RD and RP\, conversely\, the objectives are to obtain a clinically valid diagnostic image (RD)\, to realize exposures of radiation workers within their practices (RP)\, or to maintain the exposure of the general public ( RP)\, with a dose as low as reasonably achievable (the ALARA principle). I n particular\, specified dose limits are not to be exceeded in RP\, but no t in medical exposures (RT or RD). Consideration of doses and exposed mass es (or volumes\, if density is accounted for) is important\, as dose –th e ratio of energy absorbed (in Joules) and mass of absorber (in kilogramme s) - being the ratio of two extensive (additive) quantities\, is an intens ive (generally not additive) quantity. In RT\, exposing a target volume of \, say\, 1 kg to 60 Gy (typically in 30 week-day fractions of 2 Gy each) by penetrating radiation (e.g. gamma-rays) will inactivate all cells in t he small\, precisely irradiated\, target volume. Within the context of RP\ , a high dose and dose-rate whole-body exposure (say\, 60 kg) to 5 Gy of s uch penetrating radiation within minutes or hours\, will fatally affect ab out 50% of the so exposed human population. An added complication in such exposures is the dose- and radiation quality-dependent relative biological effectiveness (RBE) of different types of radiation\, such as protons or heavier ions. In all exposures\, dose-rate is also relevant\, since it is related to the time scales of biological mechanisms of inactivation and of rapid repair of radiation damage at the cellular and subcellular levels. Much slower are radiation-induced effects (such as repair) at higher syste mic levels of the human organism\, including recognition and possible elim ination of radiation-mutated malignant cells by the immune system. The ini tial physical stages of interaction of ionizing radiation with human tissu es take place within picoseconds\, creating several radical species in the human cells. Here of particular interest are toxic reactive oxygen specie s (ROS) which may be created by background radiation\, but are predominant ly created as inescapable by-products of breathing oxygen by man. The rate of ROS production by respiration overwhelms that by natural background ra diation by some 6 orders of magnitude. Since the human ROS-quenching syste ms is able to effectively handle the respiration-caused ROS\, it will also effectively quench natural-radiation-induced ROS species – so long as t he cellular repair capacities are not overwhelmed by high dose-rate exposu res. The typical dose-rate in RT is 1 Gy/min.\, while that of natural back ground radiation – some 2 mGy/year\, i.e. is lower by some 9 orders of m agnitude. Under RT conditions\, cells in the target volume will not be abl e to quench ROS production at that rate\, so cells will die. At higher bio logical levels\, cancer may also be initiated by ionizing radiation and re sult in cancers months or years later. In most cases\, malignant cells may be recognised and destroyed by the immune system\, but some will evade su ch detection. The general relationship between dose and radiation-induced cancer is certainly not linear\, and the present linear-non-threshold (LNT ) based system of radiation protection may require modification to incorpo rate recent advances in understanding radiation effects in man.\n\nhttps:/ /indico.koza.if.uj.edu.pl/event/1/contributions/146/ LOCATION:Collegium Maius URL:https://indico.koza.if.uj.edu.pl/event/1/contributions/146/ END:VEVENT BEGIN:VEVENT SUMMARY:FOOT: a nuclear physics experiment focused on Particle theraphy an d Radioprotection in Space DTSTART;VALUE=DATE-TIME:20190624T080000Z DTEND;VALUE=DATE-TIME:20190624T082500Z DTSTAMP;VALUE=DATE-TIME:20260609T214539Z UID:indico-contribution-1-80@indico.koza.if.uj.edu.pl DESCRIPTION:Speakers: Vincenzo Patera (Universita' di Rome "Sapienza" e IN FN)\nParticle therapy uses proton or 12C beams to treat deep-seated solid tumors\, and due to the advantageous characteristics of charged particles energy deposition in matter\, the maximum of the dose is released to the t umor at the end of the beam range\, in the Bragg peak region. However\, th e beam nuclear interactions with the patient tissues induces fragmentation both of projectile and target nuclei and needs to be carefully taken into account. In proton treatments\, the target fragmentation can induce low e nergy\, short range fragments along all the beam path\, that may deposit a non negligible dose in the entry channel. On the other hand in 12C treatm ents the main concern is long range fragments produced by projectile fragm entation that release their dose in the healthy tissues. \n\nThe FOOT expe riment (FragmentatiOn Of Target) is designed to study these processes. Tar get ( O and 12C nuclei) fragmentation induced by 150-250 MeV proton beams will be studied via an inverse kinematic approach\, where 16O and 12C ther apeutic beams collide on graphite and hydrocarbon targets to provide the n uclear fragmentation cross section on hydrogen. Increasing the beam energy to 300-400 MeV/nucleon also the projectile fragmentation of these beams w ill be explored. Such a detector will also be able to study the interactio n of light nuclei (4He\, 12C and 16O) with kinetic energy of 800 MeV/nucle on with graphite and hydrocarbon targets\, of interest for radioprotection in space. \nThe FOOT collaboration (France\, Germany\, Japan\, Italy) sta rted to design an experimental setup made of an interaction region with be am monitor and start counter\, a magnetic spectrometer for the fragments m omentum measurement\, a thin plastic scintillator for ΔE and time of flig ht measurements and a BGO calorimeter to measure fragment kinetic energy. The information provided will be combined in order to identify the charge and isotopic number of the fragments. This detector will be paired by a se tup where specific emulsion chamber will be coupled to the FOOT interactio n region to measure the production in graphite and polyethylene target of light charged fragments as protons\, deuterons\, tritons and Helium nuclei .\n\nhttps://indico.koza.if.uj.edu.pl/event/1/contributions/80/ LOCATION:Collegium Maius URL:https://indico.koza.if.uj.edu.pl/event/1/contributions/80/ END:VEVENT BEGIN:VEVENT SUMMARY:FTM detector for fast timing applications DTSTART;VALUE=DATE-TIME:20190628T123500Z DTEND;VALUE=DATE-TIME:20190628T125500Z DTSTAMP;VALUE=DATE-TIME:20260609T214539Z UID:indico-contribution-1-11@indico.koza.if.uj.edu.pl DESCRIPTION:Speakers: Yasser Maghrbi (American University of the Middle Ea st\, Kuwait)\nRecently introduced\, the FTM detector is conceived as a hig h-rate capable Micro-Pattern Gaseous Detector (MPGD) designed for applicat ions requiring fast timing such as high luminosity accelerators and medica l imaging. The FTM structure consists of alternating drift and gain region s\, using resistive coatings\, such that signals from each multiplication stage can be read out by the external readout electrodes through capacitiv e coupling. Simulations showed that a time resolution below 300 ps can be reached with a 16-layers FTM operated at 3 kV/cm drift and 130 kV/cm ampli fication fields in Ar:CO$_{2}$ 70:30 gas mixture. Extensive simulations of different parameters such as geometry\, collection efficiency and gain ha ve been performed aiming at optimizing the detector.\n\nhttps://indico.koz a.if.uj.edu.pl/event/1/contributions/11/ LOCATION:Collegium Maius URL:https://indico.koza.if.uj.edu.pl/event/1/contributions/11/ END:VEVENT BEGIN:VEVENT SUMMARY:The new capabilities for ensuring radiation protection of individu als undergoing medical exposure DTSTART;VALUE=DATE-TIME:20190624T094500Z DTEND;VALUE=DATE-TIME:20190624T100000Z DTSTAMP;VALUE=DATE-TIME:20260609T214539Z UID:indico-contribution-1-101@indico.koza.if.uj.edu.pl DESCRIPTION:Speakers: Oleg Bezshyyko (TSNUK)\nThe work is dedicated to the development of the new capabilities for ensuring radiation protection of individuals undergoing medical exposure in radiation oncology and diagnost ic radiology: a) special 3D printer for effective production of anthropomo rphic human phantoms\; b) the free Radiation Therapy Planning System (RTP S) for dose calculations in radiation therapy\; c) special open source sof tware tools for computer aided education (to teach himself and in dedicate d groups) in radiation protection fields.\nThe work is being performed acc ording to the main directions of IAEA project RER9147 (Ukrainian part) and partly supported by grant 9903 of STCU.\nPresently the firms which produc e anthropomorphic phantoms\, use a standard complex technology with limite d assortment. Therefore\, phantoms are very expensive\, that doesn’t all ow developing extensive network of phantoms for professional training of m edical personnel and control of treatment quality. We have proposed to dev elop an approach based on a 3D printing tool (with tissue-equivalent “in ks” of various types\, large speed and precision) that can provide valid ation tests for the whole chain for ionizing radiation in medicine. This t echnique will be applicable for radiotherapy and X-ray diagnostics sites a nd can provide a new level of professional training for the clinical staff and students. \nWe study the possibility to build in Ukraine the pilot pr oject of systems for education in cancer hospital and audits in hospitals of therapeutic dose (check of all chain: methods-equipment-personal) by re gulatory officers and inspectors using detectorized anthropomorphic phanto ms\, produced by 3D printer. Such approaches are possible and for diagnost ic radiology.\nPurpose of new free RTPS: a) independent check of dose calc ulation by main RTPS for treatment of cancer patients\; b) safe for patien ts (because main RTPS does not used) education of students (in medical phy sics) and personal of hospitals for obtaining of skills and experience of work with RTPS.\nSpecial open source software tools for computer aided edu cation of medical physicists and radiation protection specialists are base d on the MOODLE platform.\n\nhttps://indico.koza.if.uj.edu.pl/event/1/cont ributions/101/ LOCATION:Collegium Maius URL:https://indico.koza.if.uj.edu.pl/event/1/contributions/101/ END:VEVENT BEGIN:VEVENT SUMMARY:Application of the machine learning methods to the event classific ation in the J-PET scanner. DTSTART;VALUE=DATE-TIME:20190625T113000Z DTEND;VALUE=DATE-TIME:20190625T130000Z DTSTAMP;VALUE=DATE-TIME:20260609T214539Z UID:indico-contribution-1-113@indico.koza.if.uj.edu.pl DESCRIPTION:Speakers: Jan Bielecki (Warsaw University of Technology)\nOne of the challenge for the total and large PET tomographs is the efficient s election of the true coincidence photon pairs and reduction of the backgro und consisting of events with the photons scattered in the patient body\, multiple scattered in the detector or coming from different annihilations (random coincidences). The J-PET scanner is the multi-layer\, large field- of-view\, cylindrical-shape PET tomography device made of plastic scintill ators. Photons which are measured interacts in plastic scintillators domin antly\nby the Compton effect which makes the selection process even more\n challenging. We investigate the possibility of using the Machine Learning algorithms for multi-photon event classification to increase the signal t o background ratio. Two boosted-decision trees algorithms: AdaBoost and XG Boost was used. The studies are based on the Monte Carlo simulation of the IEC-NEMA phantom. Preliminary results are compared with the standard sele ction procedure.\n\nhttps://indico.koza.if.uj.edu.pl/event/1/contributions /113/ LOCATION:Collegium Maius URL:https://indico.koza.if.uj.edu.pl/event/1/contributions/113/ END:VEVENT BEGIN:VEVENT SUMMARY:Cyclotron Centre Bronowice IFJ PAN - physics for science and medic ine DTSTART;VALUE=DATE-TIME:20190624T085500Z DTEND;VALUE=DATE-TIME:20190624T092000Z DTSTAMP;VALUE=DATE-TIME:20260609T214539Z UID:indico-contribution-1-147@indico.koza.if.uj.edu.pl DESCRIPTION:Speakers: Renata Kopeć (institute of Nuclear Physics PAN)\nCy clotron Centre Bronowice (in Polish - Centrum Cyklotronowe Bronowice\, CCB ) is a part of the Henryk Niewodniczański Institute of Nuclear Physics Po lish Academy of Sciences in Krakow (IFJ PAN). The first proposal for the C CB project was submitted in September 2006. In years 2010- 2015 the new fa cility was constructed. \nIn CCB the dedicated to medicine Proteus C-235 c yclotron is used to produce proton beams in energy range from 70 to 230 M eV. The main activity of CCB is proton radiotherapy (in cooperation with c linical partners). Cyclotron Centre Bronowice is also one of the few proto n therapy centres with experimental room dedicated for nuclear physic pr ogramme. \nThe following activities are being conducted in CCB: medical ph ysics\,dosimetry\, microdosimetry\, radiobiology and materials engineering \, development of clinical and scientific infrastructure intended for a tu mour treatment and experiments in nuclear physics.\n\nhttps://indico.koza. if.uj.edu.pl/event/1/contributions/147/ LOCATION:Collegium Maius URL:https://indico.koza.if.uj.edu.pl/event/1/contributions/147/ END:VEVENT BEGIN:VEVENT SUMMARY:Higher-order recombination processes in Argon ions observed via x- ray emission in an EBIT DTSTART;VALUE=DATE-TIME:20190625T113000Z DTEND;VALUE=DATE-TIME:20190625T130000Z DTSTAMP;VALUE=DATE-TIME:20260609T214539Z UID:indico-contribution-1-162@indico.koza.if.uj.edu.pl DESCRIPTION:Speakers: Weronika Biela (Jagiellonian University)\nThe electr on-electron interaction is a crucial aspect of atomic reactions involving electron-ion collisions. An effective way to investigate electron-electron interaction is to study the higher-order recombination processes. The mos t basic of those recombination processes is dielectronic recombination. DR is the time reversal to the Auger process and thus is well-known and inve stigated in many different highly-charged systems [1\,2]. In this resonant process\, a free electron is captured while another bound electron is exc ited due to the direct interaction between the two electrons. The recombin ation is completed through radiative stabilization of the excited ion. The research presented here was conducted the Jagiellonian University EBIT [3 ]. An XFlash SD x-ray detector was positioned perpendicular to the electro n beam axis. The very good resolution of the x-ray detector enabled the K- LL DR resonances to be distinguished for He- up to N-like Ar ions. In this region\, in addition to the K-LL DR\, one of the $2p_{1/2}$ subshell elec trons can be excited to the $2p_{3/2}$ subshell state [2]. A significant i nfluence of various intershell TR processes (KL-LLL) was observed and caus ed a broadening of Be- to N-like DR lines presented in Figure 1 [2]. These results encouraged more detailed present studies of TR\, specifically of KK TR. There\, the resonant capture of a free electron to an ion-bound sta te transfers two K-shell electrons to a higher atomic shell. This way\, a doubly-excited K-shell state is produced and\, in most cases\, it decays v ia emission of two photons. The first transition with two vacancies in the K shell is responsible for the emission of photon ($K_{α}^{ h}$) with a slightly higher energy than following satellite transition ($K_{α}^{ s}$) . This TR process has been not reported yet to the best of our knowledge. This work presents significant arguments for a successful observation of t he KK-LMM TR process in Ar ions. The data set was collected for the trap i onization time between 100 ms and 250 ms for different electron-beam energ ies in the region (5200-7500) eV. This electron energy region was expected to manifest a significant enhancement of the hypersatellite Ar-K x-ray em ission due to the TR processes mentioned above. Indeed\, we observed a max imum-like behavior of the intensity ratio between this radiation and the s atellite Ar-Kα radiation presented in Figure 2.\n![ ][4]\n\nReferences:\n [1] T.M.Baumann. Z.Harman\, J.Stark\, et al. Phys. Rev. A 90\, 052704 (201 4)\n[2] C.Beilmann\, P.H.Mokler\, Z. Harman\, et al. Phys. Scr. T144\, 014 014 (2011)\n[3] G.Zschornack\, M.Schmidt and A.Thorn\, CERN Yellow Report 007\, 165-201 (2013)\n\n\n [4]: https://www.photobox.co.uk/my/photo/full? photo_id=501897215587\n\nhttps://indico.koza.if.uj.edu.pl/event/1/contribu tions/162/ LOCATION:Collegium Maius URL:https://indico.koza.if.uj.edu.pl/event/1/contributions/162/ END:VEVENT BEGIN:VEVENT SUMMARY:Validation of GPU-accelerated Fred Monte Carlo code for proton dos e recalculation DTSTART;VALUE=DATE-TIME:20190625T113000Z DTEND;VALUE=DATE-TIME:20190625T130000Z DTSTAMP;VALUE=DATE-TIME:20260609T214539Z UID:indico-contribution-1-39@indico.koza.if.uj.edu.pl DESCRIPTION:Speakers: Magdalena Garbacz (Institute of Nuclear Physics Poli sh Academy of Sciences)\nIn modern radiotherapy of cancer using charged pa rticles\, the Monte Carlo (MC) methods are exploited for reliable dose rec alculation. Unlike analytical dose calculation methods employed in commerc ially available Treatment Planning Systems (TPS)\, the MC tools explicitly take into account many details of particle interactions with target athom s\, such as multiple coulomb scattering or nuclear inelastic interactions. Nevertheless\, application of general purpose\, CPU-based MC tools is lim ited by the long computational time\, thus MC engines based on graphic car ds (GPU) calculations are investigated. A GPU-accelerated proton transport code FRED (Fast paRticle thErapy Dose evaluator) was developed at the Uni versity of Rome (Italy) for clinical research at proton beam facilities. A pplication of MC tools in proton therapy can improve accuracy of dose calc ulations performed with TPS and support Quality Assurance (QA) procedures. \nA physical beam model used for patient treatment in Krakow Cyclotron Ce ntre Bronowice (CCB) has been implemented in FRED based on measurements pe rformed during facility TPS commissioning. Furthermore\, a stoichiometric calibration of CT scanner\, taking into account the Hounsfield Unit to the relative proton stopping power relation\, as well as material nuclear com position has been implemented. The dose recalculation accuracy was validat ed experimentally in homogeneous and heterogeneous media. Patient QA treat ment plans measurements in water performed with MatriXX array of ionisatio n chambers and spread-out bragg peaks (SOBP) dose profile measurements wit h a Markus chamber were used for validation in homogeneous water phantom. Validation in heterogeneous media was performed measuring 3D dose distribu tion behind a CIRS head phantom.\nThe maximum difference of the dose measu red in SOBPs and calculated in FRED MC is up to 2%. Percentage gamma index passing rate (%GP) with 2mm/3% criteria\, obtained comparing 182 simulate d and measured layers of patient QA plans was 96.28(3.3)%. Dose distributi ons measured behind the CIRS head phantom are in agreement with FRED MC si mulations showing 3D %GP (2mm/2%) over 99%.\n\nhttps://indico.koza.if.uj.e du.pl/event/1/contributions/39/ LOCATION:Collegium Maius URL:https://indico.koza.if.uj.edu.pl/event/1/contributions/39/ END:VEVENT BEGIN:VEVENT SUMMARY:Uncertainty of RBE model in proton radiotherapy based on α / β r atio and linear energy transfer. DTSTART;VALUE=DATE-TIME:20190625T113000Z DTEND;VALUE=DATE-TIME:20190625T130000Z DTSTAMP;VALUE=DATE-TIME:20260609T214539Z UID:indico-contribution-1-29@indico.koza.if.uj.edu.pl DESCRIPTION:Speakers: Kinga Jeleń (Institute of Nuclear Physics PAS)\nLiv ing systems exhibit complex response to radiation during and after radioth erapy with protons beams. The response\, measured usually by cell survival is mostly affected by the quantity of absorbed radiation. Many other fact ors\, including cell type\, dose rate and beam energy have also non-negl igible effect on cell-survival. \n\nIn proton radiotherapy constant value of the relative biological effect (RBE) is assumed in clinical practice. M any studies based on in-vitro and in-vivo experiments suggest that variabl e proton RBE would improve the treatment outcome. Several models based on data extracted from in-vitro experiments relate RBE variations with linear energy transfer (LET) and α / β ratio in linear-quadratic (LQ) model. I n our study we selected Wedenberg model and extended it by adding predict ion of RBE statistical distribution. Such approach propagates uncertaintie s of in-vitro cell experiments into higher level quantities such as RBE an d dose-volume-histograms.\n \nThe model is based on experimental data for 10 different cell lines irradiated with monoenergetic proton beams with LE T values ranging from from 6 keV/um to 30 keV/um. We reconstructed paramet ers of Wedenberg model by performing least-square fitting to the mean valu es of the cell survival. Then the model was improved by subsequent fitting including statistical uncertainty of cell survival which produced distrib utions of correlated α and β parameters of LQ model. We used bootstrappi ng - resampling technique\, to mimic new data generation\, by drawing modi fied samples (in this case: parametres α\, β and q) . The model outcom e was a skew RBE distribution. Mean value of predicted RBE distribution is in agreement of few percent with original Wedenberg model. \n \nWe estima ted that uncertainties of LQ model parameters α and β at 10% - 15% lead to RBE uncertainty at 9% level. Introduced model predicts RBE distribution which enable better inter-model testing than simple comparison of mean va lues. Uncertainty of the RBE allows for richer treatment plan comparison. \n\n*References:\n[1] M.Wedenberg\, B.K.Lind\, B.Hardemark\, “A model fo r the relative biological effectiveness of protons: The tissue specific pa rameter α / β of photons is a predictor for the sensitivity to LET chang es”\, Acta Oncologica 2012\n[2] K.Ilicic\, SE Combs\, TE Schmid\,“New insights in the relative radiobiological effectiveness of proton irradiati on.”\, Radiation Oncology 2018\n[3] B.Jones\, MD\, FRCR\, ”Why RBE mus t be a variable and not a constant in proton therapy”\, BRJ 2016*\n\nhtt ps://indico.koza.if.uj.edu.pl/event/1/contributions/29/ LOCATION:Collegium Maius URL:https://indico.koza.if.uj.edu.pl/event/1/contributions/29/ END:VEVENT BEGIN:VEVENT SUMMARY:Synthesis And Characterization Of The Plastic Scintillators For T he Total-Body J-PET Scanner DTSTART;VALUE=DATE-TIME:20190628T121500Z DTEND;VALUE=DATE-TIME:20190628T123500Z DTSTAMP;VALUE=DATE-TIME:20260609T214539Z UID:indico-contribution-1-159@indico.koza.if.uj.edu.pl DESCRIPTION:Speakers: Łukasz Kapłon (Jagiellonian University)\nJagiellon ian Positron Emission Tomograph (J-PET) is a PET scanner based on plastic scintillators [1]. The aim of the J-PET Collaboration is to build a modula r\, light and portable PET scanner for the total body examination. Current ly we are building prototype modules consisting of 500 and 1000 mm long pl astic scintillator strips with silicon photomultipliers coupled at both en ds [2].\n\nResult of styrene and vinyltoluene polymerization will be prese nted. The time-temperature cycles were established for polymerization in s mall cylinders as well as for polymerization in the glass mold allowing to manufacture long plastic scintillator strips. A new method developed for the fast quality control of plastic scintillator strips was successfully a pplied during J-PET prototype building and will be introduced. The new sci ntillator was manufactured via bulk polymerization of vinyltoluene and the optimal concentration of the 2-(4-styrylphenyl)benzoxazole wavelength shi fter [3]. The light yield for the best sample was established to be equal 10 000 photons per MeV. Obtained plastic scintillators were optimized for short rise and decay times needed in time of flight PET detectors. The ris e time and decay time of the developed plastic scintillator were determine d to be 0.5 ns and 1.9 ns\, respectively.\n\nWith high technical attenuati on length (TAL) more photons propagating along scintillator strip is reach ing silicon photomultipliers at both ends thus increasing time resolution of the J-PET scanner. The aim of TAL measurement is to determine technical light attenuation length value of commercially available plastic scintill ator strips and selecting the best type for J-PET scanner construction. A few models of plastic scintillators obtained from different manufacturers were tested. All strips have the same rectangular cross-section and dimens ions 6x24x1000 mm^3. TAL determination method is based on fast scanning of scintillator strip by UV lamp with 365 nm wavelength of maximum emission and reading light signal by silicon photodiode. Results of TAL measurement s will be compared to manufacturer’s specifications.\n\n[1] J-PET: P. Ko walski et al.\, Phys. Med. Biol.\, 63 (2018) 165008\n[2] J-PET: P. Moskal et al.\, Phys. Med. Biol.\, 61 (2016)\, 2025-2047\n[3] J-PET: A. Wieczorek et al.\, PLoS ONE\, 12:11: e018672 (2017)\, 1-16\n\nhttps://indico.koza.i f.uj.edu.pl/event/1/contributions/159/ LOCATION:Collegium Maius URL:https://indico.koza.if.uj.edu.pl/event/1/contributions/159/ END:VEVENT BEGIN:VEVENT SUMMARY:Monitoring proton therapy through in-beam PET – the perspective of proton therapy physicist DTSTART;VALUE=DATE-TIME:20190625T113000Z DTEND;VALUE=DATE-TIME:20190625T130000Z DTSTAMP;VALUE=DATE-TIME:20260609T214539Z UID:indico-contribution-1-24@indico.koza.if.uj.edu.pl DESCRIPTION:Speakers: Dawid Krzempek (Cyclotron Centre Bronowice\, Institu te of Nuclear Physics Polish Academy of Sciences\, Krakow\, Poland.)\nProt on therapy is a method of radiotherapy allowing the delivery of a high rad iation dose to the target volume in a conformal way. This is possible than ks to the very beneficial shape of the depth dose distribution of proton b eam\, called the Bragg peak. \nHowever\, the steep distal fall-off of the beam can result in over- or under-dosage in critical regions. Therefore th e monitoring of the beam range is very needed. The one of the method of su ch monitoring is the in-beam PET system\, DoPET developed by the group fro m Istituto Nazionale di Fisica Nucleare\, Sezione di Pisa (Italy). In orde r of an effective development of this kind of system the cooperation with proton therapy center is necessary. The tests of DoPET were performed\, am ong others\, in Cyclotron Centre Bronowice\, Institute of Nuclear Physics in Cracow (Poland)\, which is equipped with two Gantries with pencil beam scanning (PBS) system. \nIn order to evaluate the capabilities of DoPET se veral irradiations of different materials phantoms mimicking human tissue have been performed. The experimental conditions were simulated with FLUKA Monte Carlo code. The data analysis was performed focusing on the quantif ication of the activated volume in terms of depth and signal height.\nIn t his work the experiment will be presented in details\, including all issue s which have to be solved by the beam provider to convert the treatment pa rameters into the ones required by the PET system. The comparison of the M onte Carlo predictions vs. experimental data will be shown as well.\n\nhtt ps://indico.koza.if.uj.edu.pl/event/1/contributions/24/ LOCATION:Collegium Maius URL:https://indico.koza.if.uj.edu.pl/event/1/contributions/24/ END:VEVENT BEGIN:VEVENT SUMMARY:Measurement of the charge asymmetry for the KS → πeν decay and test of CPT symmetry with the KLOE detector DTSTART;VALUE=DATE-TIME:20190625T113000Z DTEND;VALUE=DATE-TIME:20190625T130000Z DTSTAMP;VALUE=DATE-TIME:20260609T214539Z UID:indico-contribution-1-154@indico.koza.if.uj.edu.pl DESCRIPTION:Speakers: Daria Kisielewska (Jagiellonian University)\nUsing 1 .63 fb$^{-1}$ of integrated luminosity collected by the KLOE experiment ab out $7 \\times 10^4$ $K_S \\rightarrow \\pi e \\nu$ decays have been recon structed. The measured value of the charge asymmetry for this decay is $A_ S = (−4.9 \\pm 5.7_{stat} \\pm 2.6_{syst}) \\times 10^{-3}$\, which is a lmost twice more precise than the previous KLOE result. The combination of these two measurements gives $A_S = (−3.8 \\pm 5.0_{stat} \\pm 2.6_{sys t}) \\times 10^{-3}$ and\, together with the asymmetry of the $K_L$ semile ptonic decay\, provides significant tests of the CPT symmetry. The obtaine d results are in agreement with CPT invariance.\n\nhttps://indico.koza.if. uj.edu.pl/event/1/contributions/154/ LOCATION:Collegium Maius URL:https://indico.koza.if.uj.edu.pl/event/1/contributions/154/ END:VEVENT BEGIN:VEVENT SUMMARY:Development of a new free Radiation Therapy Planning System for do se calculation in Radiation Oncology DTSTART;VALUE=DATE-TIME:20190625T113000Z DTEND;VALUE=DATE-TIME:20190625T130000Z DTSTAMP;VALUE=DATE-TIME:20260609T214539Z UID:indico-contribution-1-98@indico.koza.if.uj.edu.pl DESCRIPTION:Speakers: Hlib Lakhno (TSNUK - Taras Shevchenko National Unive rsity of Kyiv)\nThe work is dedicated to the development of the new free R TPS (the Radiation Therapy Planning System)\, the using GPU hardware and A rtificial Intelligence algorithms for dose calculation. The semi-empirical algorithms and Monte Carlo methods are applied to obtain balance between of speed and precision of work. Free RTPS systems are effective not only f or training students and medical physicists\, but also for increasing the reliability of the dose calculations in the radiation oncology\, quality c ontrol of dose delivery\, development of new types of radiation therapy su ch as proton therapy and therapy using carbon ions. We use the modern grap hical interface\, convenient and habitual for medical physicists\, written on the C++ and Python.\nOver the last decade we are observing a technolog ical revolution in radiation oncology. Enhanced use of imaging techniques combined with computer-controlled methods of dose delivery aims at escalat ing effective dose values deposited in tumors without increasing the morbi dity and tissue complications. A pivotal tool for these irradiation approa ches is the computerized radiation treatment planning system (RTPS) which is used to develop optimal treatment techniques for individual patients. M odern RTPSs make increased use of patient images\, possibly from various i maging modalities\, enhanced 3-D displays\, sophisticated dose-calculation algorithms\, complex treatment plan evaluation tools\, visualized and val idated by a comprehensive set of the generated images. Implementation of i ntensity-modulated radiation therapy (IMRT) added a further complexity to the RTPS. RTPSs are used in external beam radiation therapy (and brachythe rapy) to generate beam profiles (or positioning of the sources) and dose d istributions\, maximizing tumor control and minimizing normal tissue compl ications. Enhanced modern RTPSs have to serve as an essential education to ol for students of specialties related to using of ionizing radiation in m edicine and for training of medical physics personnel. Alternative RTPS ar e indispensable to provide an independent calculation path to estimate the dose obtained by patient as required by regulation documents.\nUnfortunat ely\, as a rule RTPSs are provided only as a complement to the purchased r adiation-therapy equipment\, which makes it inconvenient\, expensive and o ften impossible to use such RTPS for training and education of personnel a nd students as well as for independent checks. Therefore\, development of RTPS\, independent on a specific vendor of the equipment for radiation the rapy\, potentially using an open source approach\, is essential for improv ing the level of training and education as well as the quality standards i n radiation therapy in Ukraine and in other countries. The proposed develo pment of the open source RTPS will employ modern algorithms and approaches \, possibly best available open algorithms from commercial software\, forw ard and inverse planning\, semi empirical and Monte Carlo methods\, techni ques of parallelizing for effective calculations.\n\nhttps://indico.koza.i f.uj.edu.pl/event/1/contributions/98/ LOCATION:Collegium Maius URL:https://indico.koza.if.uj.edu.pl/event/1/contributions/98/ END:VEVENT BEGIN:VEVENT SUMMARY:Search for the $\\eta$-mesic Helium in $pd \\rightarrow pd\\pi^{0} $ Reaction with WASA-at-COSY DTSTART;VALUE=DATE-TIME:20190625T113000Z DTEND;VALUE=DATE-TIME:20190625T130000Z DTSTAMP;VALUE=DATE-TIME:20260609T214539Z UID:indico-contribution-1-35@indico.koza.if.uj.edu.pl DESCRIPTION:Speakers: Aleksander Khreptak (Jagiellonian University)\nThe n egatively charged pions and kaons can be trapped in the Coulomb potential of atomic nucleus forming so called mesonic atoms. It is also conceivable that a neutral meson could be bound to a nucleus. In this case the binding is exclusively due to the strong interaction and hence such object can be referred to as a mesic nucleus. \nThe most promising candidate for such s tate is the $\\eta$-mesic nucleus since the $\\eta$-nucleon interaction is strongly attractive. The existence of the mesic nuclear matter was postul ated over thirty years ago [1]\, however\, until now it has not been confi rmed experimentally. Such system in the form of the $\\eta$-mesic Helium m ay be created for example in the deuteron-deuteron or proton-deuteron fusi ons [2]. \nThree experiments dedicated to the search for $\\eta$-mesic Hel ium were performer up to now using the WASA detector system installed at t he Cooler Synchrotron COSY at the Forschungszentrum Jülich (Germany) [2- 8]. \nThe poster will be focused on the status and perspectives of the sea rch for the $\\eta$-mesic Helium in $pd \\rightarrow (^{3}He\\eta)_{bound} \\rightarrow pd\\pi^{0} \\rightarrow pd\\gamma\\gamma$ reaction. \n\n$\\t extbf{Bibliography:}$ \n[1] Q. Haider\, L. C. Liu\, Phys. Lett. $\\textbf{ B 172}$\, 1986\, 257. \n[2] M. Skurzok\, W. Krzemien\, O. Rundel and P. Mo skal\, Acta Phys.Polon. $\\textbf{B 47}$\, 2016\, 503. \n[3] P. Moskal\, J . Smyrski\, Acta Phys. Polon. $\\textbf{B 41}$\, 2010\, 2281. \n[4] P. Adl arson et al.\, Phys. Rev. $\\textbf{C 87}$\, 2013\, 035204. \n[5] P. Adlar son et al.\, Nucl. Phys. $\\textbf{A 959}$\, 2017\, 102. \n[6] P. Adlarson et al.\, Phys. Rev. Lett. $\\textbf{120}$\, 2018\, 022002. \n[7] M. Skurz ok et al.\, Phys. Lett. $\\textbf{B 782}$\, 2018\, 6.\n[8] S. Bass\, P. Mo skal\, Reviews of Modern Physics $\\textbf{91}$\, 2019\, 015003.\n\nhttps: //indico.koza.if.uj.edu.pl/event/1/contributions/35/ LOCATION:Collegium Maius URL:https://indico.koza.if.uj.edu.pl/event/1/contributions/35/ END:VEVENT BEGIN:VEVENT SUMMARY:Algorithm for recovery of the annihilation pairs from multi-photon events for the J-PET scanner with non-pure radioisotopes. DTSTART;VALUE=DATE-TIME:20190625T113000Z DTEND;VALUE=DATE-TIME:20190625T130000Z DTSTAMP;VALUE=DATE-TIME:20260609T214539Z UID:indico-contribution-1-114@indico.koza.if.uj.edu.pl DESCRIPTION:Speakers: Yulia Fedorova ()\nJ-PET scanner is the multi-layer\ , large field-of-view\, cylindrical-shape \nPET tomography device made of plastic scintillators. Its unique \ncapabilities allows to investigate var ious extensions to the traditional \n2-photon tomography. In this contribu tion we investigate the method to \nrecover 511 keV annihilation photons f rom the multi-photon events. The \nobtained fraction of events can be used to increase the statistics and \nimprove the quality of the reconstructed image. The studies are based on \nthe GATE Monte Carlo simulations with t he 44 Sc source. The preliminary \nresults of theselection algorithm based on energy\, geometrical and \ntemporal conditions will be presented. The presented technique can be \nfurther extended towards 2+1 tomography\, whe re the additional \ninformation based on the registration of the high-ener gy de-excitation \ngamma is incorporated into the image reconstruction pr ocedure.\n\nhttps://indico.koza.if.uj.edu.pl/event/1/contributions/114/ LOCATION:Collegium Maius URL:https://indico.koza.if.uj.edu.pl/event/1/contributions/114/ END:VEVENT BEGIN:VEVENT SUMMARY:Search of electric dipole moment using storage ring DTSTART;VALUE=DATE-TIME:20190625T113000Z DTEND;VALUE=DATE-TIME:20190625T130000Z DTSTAMP;VALUE=DATE-TIME:20260609T214539Z UID:indico-contribution-1-37@indico.koza.if.uj.edu.pl DESCRIPTION:Speakers: Anjali Aggarwal (The Marian Smoluchowski Institute o f Physics\, Jagiellonian University\, Kraków\, Poland)\nThe Standard Mode l (SM) of Particle Physics fails to explain the reason for our very existe nce since it is not capable to account for the apparent matter-antimatter asymmetry of our Universe. Permanent EDMs of particles violate both time r eversal and parity invariance\, therefore via CPT theorem CP is violated. Finding an EDM value larger than predicted by SM would be a strong indicat ion for physics beyond the SM. The JEDI collaboration attempts to measure EDM for proton and deuteron using storage ring. Final precision of 10-29 e ·cm is expected with the dedicated storage ring. \n\nThe assumed precisio n level is very high so it is necessary to pay attention to some standard effects which could mimic the investigated EDM. Up to now only the magneti c dipole moment (MDM) and EDM interaction with electromagnetic fields were considered when calculating spin evolution in the storage ring. However\, the elements of the storage ring have complicated field distributions\, h ence the fields gradients are also present. Therefore\, the MDM and electr ic quadrupole moment (EQM) interaction with fields gradients must be consi dered. This usually neglected effects could mimic EDM signal at the goal p recision. The analytical calculations for EQM-gradients interaction [1] co nfirm the importance of taking into account effects from field gradients i n the planned EDM measurements. \n\nThe simulations of these effects have to be performed prior to deciding about the design and construction of the final storage ring. Such calculations could be performed with properly mo dified BMAD software\, equipped with realistic fields for all elements. BM AD software was modified implementing particles tracking in custom defined elements and extending T-BMT equation with MDM and EQM interaction with f ields derivatives. Presently the custom elements fields are defined with a nalytical formula taken from Ref. [2]. This allows easy definition of fiel ds gradients and direct control of fields parameters. Preliminary calculat ions of spin precession with fields gradients effect included will be pres ented for the quasi-frozen spin method of EDM measurement described in Ref . [3]. \n\nReferences: \n\n1. A. Magiera\, Phys. Rev. Accel. Beams 20\, 09 4001 (2017) \n\n2. B.D. Muratori et al.\, Phys. Rev. Accel. Beams 18\, 064 001 (2015) \n\n3. Y. Senichev et al.\, in Proc. 6th Int. Particle Accelera tor Conf. (IPAC'15)\, Richmond\, VA\, USA\, May 2015\, p. 213\n\nhttps://i ndico.koza.if.uj.edu.pl/event/1/contributions/37/ LOCATION:Collegium Maius URL:https://indico.koza.if.uj.edu.pl/event/1/contributions/37/ END:VEVENT BEGIN:VEVENT SUMMARY:Gate Simulation study of the 24 Modular J-PET and data analyzing DTSTART;VALUE=DATE-TIME:20190625T113000Z DTEND;VALUE=DATE-TIME:20190625T130000Z DTSTAMP;VALUE=DATE-TIME:20260609T214539Z UID:indico-contribution-1-173@indico.koza.if.uj.edu.pl DESCRIPTION:Speakers: Meysam Dadgar (Faculty of Physics\, Astronomy and Ap plied Computer Science\, Jagiellonian University )\nA novel Positron Emiss ion Tomography (PET) detector consisting of strips of polymer scintillator s is being developed in J-PET Collaboration. Despite other commercial PET scanners which are based on crystal scintillators\, 24 modular J-PET is th e latest prototype of the J-PET collaboration using Silicon photomultiplie rs. Each module in this prototype contains 13 strips of EJ-230 with 50 cm long plastic scintillator. Modules in this geometry are placed on the lat eral area of a cylinder with 70 cm diameters. The axis of each detector is parallel to the axis of the cylinder. At ends of each module there is a s ilicon photomultiplier(Si-PM). GEANT4 Application for Tomographic Emission (GATE) is one of the most advanced specialized software packages for simu lations of the Positron Emission Tomography scanners. For this simulation\ , 6 point sources have been used and just back to back events taken into a ccount. Gate Output J-PET Analyzer (GOJA) is a software developed by J-PET collaboration to analyze GATE simulation output . This software can perfo rm three dimensional list-mode of coincidences\, which can be used in imag e reconstruction. Since modular J-PET is under construction\, one of the a ims of investigations is to find out all the NEMA characteristics of the t omography by GATE simulation. In parallel\, GATE simulation and GOJA data analyzing have been implemented\, to provide us with the reconstructed ima ges of J-PET. For this goal\, we are developing Quantitative Emission Tomo graphy Iterative Reconstruction (QETIR) software.\n\nhttps://indico.koza. if.uj.edu.pl/event/1/contributions/173/ LOCATION:Collegium Maius URL:https://indico.koza.if.uj.edu.pl/event/1/contributions/173/ END:VEVENT BEGIN:VEVENT SUMMARY:Investigations on physical and biological range uncertainties in K rakow proton beam therapy centre DTSTART;VALUE=DATE-TIME:20190624T092000Z DTEND;VALUE=DATE-TIME:20190624T094500Z DTSTAMP;VALUE=DATE-TIME:20260609T214539Z UID:indico-contribution-1-174@indico.koza.if.uj.edu.pl DESCRIPTION:Speakers: Antoni Ruciński (Institute of Nuclear Physics PAN)\ nThe physical and biological range uncertainties are limiting the clinical potential of proton beam therapy (PBT). Our research activities aim at de veloping software tools and detector instrumentation to tackle the problem of beam range uncertainties in the clinic. We will present research activ ities performed by our group within national and international collaborati ons in the perspective of recent advances in the field of proton therapy m edical physics. \n\nWe will report on our development and pre-clinical app lication of a GPU-accelerated Monte Carlo (MC) simulation toolkit FRED. Th e MC based recalculation of patient treatment plans with variable radiobio logical effectiveness is an essential input for medical doctors and physic ists and can support PBT treatment planning. Taking advantage from the FRE D time performance we aim to improve quality assurance efficiency in Krako w PBT facility. The software tools and procedures developed are currently integrated into the cancer patient treatment procedures to fully exploit t he advantages of proton beams in the clinic.\n\nWe will report on our inve stigations of plastic scintillator based PET detectors for monitoring of p article therapy delivery. We study the feasibility of Jagiellonian-PET det ector technology for proton beam therapy range monitoring by means of MC s imulations of the β+ activity induced in a phantom using proton beams. Th e experimental validation and image reconstruction activities are ongoing. \n\nUsing a GPU-accelerated Monte Carlo simulation toolkit FRED and plasti c scintillator based PET detectors we aim to improve patient treatment qua lity with protons.\n\nhttps://indico.koza.if.uj.edu.pl/event/1/contributio ns/174/ LOCATION:Collegium Maius URL:https://indico.koza.if.uj.edu.pl/event/1/contributions/174/ END:VEVENT BEGIN:VEVENT SUMMARY:Optimization of the collimator for spatially fractionated proton t herapy of the eye DTSTART;VALUE=DATE-TIME:20190625T113000Z DTEND;VALUE=DATE-TIME:20190625T130000Z DTSTAMP;VALUE=DATE-TIME:20260609T214539Z UID:indico-contribution-1-177@indico.koza.if.uj.edu.pl DESCRIPTION:Speakers: Agata Toboła-Galus ()\nPurpose\nIn spatially fracti onated proton therapy (SFTP) the arrays of parallel and narrow proton beam s are applied to reduce the impact of irradiation on healthy tissue. At th e beam entrance the locally irradiated skin benefits from faster recovery than that observed for the uniform exposure. In the same time\, due to the multiple Coulomb scattering of the proton beam\, the target volume can be uniformly irradiated.\n\nThe main goal of this work was to optimize the c onstruction of mechanical collimators to form minibeam. The theoretical st udy is concerned to design and test a beam collimator in the shape of mesh and slits that for the parallel 60 MeV proton beam would produce the desi red depth dose distribution at a depth relevant for eye proton therapy.\n\ nMaterials and Methods\nMonte Carlo simulations (FLUKA ver. 2011.2x-6) wer e used as a method to evaluate the dose distributions of SFTP irradiations in several configurations of mechanical collimation. The parameters of th e collimator i.e. center-to-center distance (c-t-c)\, mesh/slits aperture (diameter of spot or width of slit)\, Collimator-Phantom distance (CPD) an d material composition etc. were optimized in order to assure the required dose distribution.\n\nResults\n Comparable Peak to Valley Dose Ratio (PVD R) values were obtained for mesh collimators of the larger aperture (spot diameter 0.7-1.0 mm) than for slits collimator (width of slit 0.25-0.5 mm) . The results show that proton beam widths 0.7 mm with c-t-c distance 1.4 mm (mesh) and 0.25 mm width with c-t-c distance 0.75 mm are needed to obta in simultaneously uniform dose distribution in the target volume and the h igh values of PVDR. A larger c-t-c distances (2 mm or more) does not lead to the dose homogeneity in the BP area. Among the considered materials\, b rass and tungsten are offering the best compromise. The highest PVDR are o btained with a tungsten multislit collimator. The reduction of the Collima tor-Phantom distance allows to maximize the dose-volume effects. Despite l ower the PVDR values\, more advantageous in terms of\, manufacturing cost\ , material processing (drilling holes/slits) and secondary neutrons is use d brass collimator.\n\nConclusions\nSpatially fractionated proton therapy SFPT (proton grid therapy) is considered for treatment of eye tumor with s paring eyelids localized on the beam’s path after hypofractionated thera py.\n\nFor 60 MeV parallel proton beam the mesh diameter of 0.7 mm or the slits width of 0.25 mm was found sufficient to broaden the resulting mini- beams due to the multiply proton scattering in the collimator and in conse quence to the homogenous target irradiation.\n\nhttps://indico.koza.if.uj. edu.pl/event/1/contributions/177/ LOCATION:Collegium Maius URL:https://indico.koza.if.uj.edu.pl/event/1/contributions/177/ END:VEVENT END:VCALENDAR