The Present status of the PHITS code

Niita, Koji*; Nakashima, Hiroshi; Sato, Tatsuhiko   ; Matsuda, Norihiro  ; Iwamoto, Yosuke   ; Sakamoto, Yukio; Iwase, Hiroshi*; Sihver, L.*; Mancusi, D.*

A particle and heavy ion transport code is an essential implement in the design study of accelerator facilities for various purposes such as radiotheraphy, spallation neutron source and rare isotopes production, and also in space technology. We have therefore developed a multi-purpose particle and heavy ion transport Monte Carlo code system, PHITS (Particle and Heavy Ion Transport code System), based on the NMTC/JAM code. PHITS has three important ingredients which enable us to simulate (1) hadron-nucleus reactions with energies up to 200 GeV, (2) nucleus-nucleus collisions from 10 MeV/nucleon up to 100 GeV/nucleon, (3) transports of heavy ions, all hadrons including low energy neutrons down to 10eV, and leptons. In this paper, we report a brief description of the models incorporated in the PHITS code and the present status of the code, showing some benchmarking tests of the PHITS code for accelerator facilities.