PHITS - Particle and Heavy Ion Transport code System LembitSihver Chalmers University of Technology, Sweden University of Houston, Houston, TX, USA Texas A&M University, TX, USA Roanoke College, VA, USA Practical Physics Solutions, LLC, TX, USA Medical College of Soochow University, Suzhou, China Nuclear Power/Accelerators Heavy Ion Therapy Space Dosimetry Treatment Planning System Dose in the atmosphere, ISS and deepspace Design of Shielding
Nuclear Science and Engineering Research Group • Main Research Areas • Fuel and Control Rod Integrity Management for LWR • Reactions & transport of ionizing particles • Radiation therapy • Shielding calculations • Dosimetry in space • Dose estimations at aviation altitudes • Development of particle & heavy ion transport codes
Particle and Heavy Ion Transport code System • PHITS Development Dr. Niita of RIST (Japan) JAEA (Japan), KEK (Japan), Chalmers Univ. Tech. (Sweden) Capability Transportand collision of “all” particles with wide energy range in 3D phase space with magnetic field & gravity from thermal up to ~ 200 GeV/u neutron, proton, meson, baryon electron photon, nucleus Application Fields Accelerator Design Radiation Therapy Space Application Chalmers
Particle and Heavy Ion Transport code System • PHITS The best with PHITS is JAEA & RIST (same site) Chalmers University of Technology KEK Very Nice and Friendly Developers!! Capability Transport and collision of “all” particles with wide energy range in 3D phase space with magnetic field & gravity neutron, proton, meson, baryon electron, photon, nucleus from thermal up to ~ 200 GeV/u Koji Norihiro Yosuke Hiroshi Tatsuhiko Hiroshi Yukio Lembit NiitaMatsuda Iwamoto Iwase Sato Nakashima Sakamoto Sihver
User Interfaces of PHITS • Input file Free format with user defined variables and formula You do not have to change the source files of PHITS ! • Geometry • GG or CG • 2D and 3D viewers • (ANGEL) • SimpleGEO* 2D viewer SimpleGEO 3D viewer • Tally functions Track length, Heat, Yield, DPA, Production, LET distribution etc. • Output Data Text data, histograms, contour maps • Platforms Windows (JAVA application) and Linux (Console) * GUI-based software originally for FLUKA, http://theis.web.cern.ch/theis/simplegeo/
Map of Models Used in PHITS Neutron Other hadrons （proton, p etc.） Nucleus Muon Electron Positron Photon Ionization SPAR or ATIMA 200 GeV 100 GeV/n 100 GeV FUTURE PLAN EGS5 and high-energy photo-nuclear reaction model Intra-Nuclear Cascade model: JAM (or Bertini, JQMD) + Evaporation & Fission: GEM Quantum Molecular Dynamics: JQMD + Evaporation GEM Photo-atomic data library 1 GeV Electro-atomic data library (option) Low ← Energy → High 20 MeV 20 MeV 10 MeV/n Nuclear data library JENDL-4.0 Photo-nuclear 1 MeV 1 keV 1 keV 1 keV Microdosimetric function 10-4 eV Event generator mode: determine all the ejectiles emitted from neutron interactions event by event
Shielding of all Beam Lines at J-PARC JapanProtonAcceleratorResearchComplex Nuclear and Particle Physics Experimental Facility Materials and Life Science Experimental Facility Nuclear Transmutation Neutrino to Kamiokande 50 GeV Synchrotron (0.75 MW) Linac(350m) 3 GeV Synchrotron (25 Hz, 1MW) Constructed under joint project of JAEA and KEK in Tokai-mura
Shielding Design around Neutron Beam Line 1MW Spallation Target Station Heat distribution calculated by PHITS 32 neutron beam lines in material and life science facility Duct source option • Source generation program specialized for shielding design of long beam lines • “Weight” of each source particle is automatically adjusted • obtain good statistics within reasonable computational time in whole area
Be reflector t = 0 nsec t = 2 nsec Fe reflector t = 4 nsec t = 100 nsec t = 1000 nsec t = 10 nsec Energy Deposition Moderators Proton Proton window Neutron window Neutron window Hg target Hg target Moderators Shielding Design around Spallation Target Estimation of Heat around target Geometry around Hg target M. Harada et al. J. Nucl. Material343, 197 (2005)
What can Sihver contribute with for the ESS project WP#3 and 11 • Nearly 30 years of experiences with nuclear chemistry, nuclear physics, • material science and various applications of these sciences. • Long experience of gamma spectroscopy, heavy ion experiments, gamma • spectroscopic analysis of accelerator based fragmentation experiments, • and development of gamma spectroscopic measurements systems. • PhD thesis at the department of neutron research, Uppsala University. • 20 years of experiences of development, improvements and benchmarking • of deterministic and Monte Carlo particle and heavy ion transport codes. • A extremely wide network and collaborations with Japanese scientists at • JAEA, NIRS, University of Tokyo, Tokyo Institute of Technology, Waseda • University., JAXA, RIKEN, etc. • A passionate interest for the construction of ESS and all possible experiments • which can be performed at ESS.
