Implementation of EGS5 physics into PHITS

Iwase, Hiroshi*; Namito, Yoshihito*; Hirayama, Hideo*; Niita, Koji*; Hashimoto, Shintaro  ; Matsuda, Norihiro  ; Noda, Shusaku; Ota, Shuya*; Iwamoto, Yosuke   ; Sato, Tatsuhiko   ; Chiba, Satoshi*; Fukahori, Tokio  ; Sakamoto, Yukio; Suyama, Kenya; Nakashima, Hiroshi

The Electron Gamma Shower (EGS), which has been developed by Univ. of Michigan, SLAC, Canadian government, KEK etc., is one of the electrons and -ray shower transport Monte Carlo code. The EGS5 code is used in various fields of radiation shielding of accelerator facilities, design of radiation detectors, dose estimation in medical application, and so on. The Particle and Heavy Ion Transport code System PHITS, the multi-purpose and multi-particle Monte Carlo code, has a lot of useful user-interfaces and output functions. It would be of great benefit to EGS users if EGS5 can be operated in the PHITS system, and to PHITS users too, if the EGS5 physics can be used in the PHITS code. The EGS5 models are divided into some parts and implemented in the PHITS code in a manner that the calculation procedure is identical to the original EGS5 so that users can obtain same results.