Recent updates and shielding benchmark of PHITS

Ogawa, Tatsuhiko; Iwamoto, Yosuke; Hashimoto, Shintaro; Sato, Tatsuhiko; Matsuda, Norihiro; Kunieda, Satoshi; elik, Y.*; Furutachi, Naoya*; Niita, Koji*; Furuta, Takuya; et al.

no journal, , 

PHITS is a general-purpose radiation transport simulation code that has been developed mainly by JAEA in cooperation with domestic and foreign research institutes. We released the latest version, PHITS 3.27, in March 2022. Since SATIF-14 held in 3 years ago, following updates were implemented (1)Extension of the cross section data reading module, (2)Modernization of burn-up calculation code DCHAIN, (3)Functionality to calculate the dependence of the result on the input parameters, (4)Interactive 3D geometry viewer,PHIG-3D, (5)Cosmic ray source function, (6)Track-structure calculation models, which calculate the atomic-scale reactions of charged particles on event-by-event basis, for electrons, positions, and heavy ions, (7)GUI-version RT-PHITS development, (8)random number generation by Xor-shift64 algorithm, (9)User-defined stopping power reading module, (10)EXFOR data reading module, (11)Photon-induced mu-mu pair production model. In addition, a bench, ark study conducted by Iwamoto et al, is also presented to explain the importance of the new cross section reading module.