Overview of PHITS Ver.3.34 with particular focus on track-structure calculation

Ogawa, Tatsuhiko   ; Hirata, Yuho   ; Matsuya, Yusuke  ; Kai, Takeshi   ; Sato, Tatsuhiko   ; Iwamoto, Yosuke   ; Hashimoto, Shintaro  ; Furuta, Takuya   ; Abe, Shinichiro   ; Matsuda, Norihiro  ; Sekikawa, Takuya; Yao, L.; Tsai, P.-E.*; Ratliff, H. N.*; Iwase, Hiroshi*; Sakaki, Yasuhito*; Sugihara, Kenta*; Shigyo, Nobuhiro*; Sihver, L.*; Niita, Koji*

The latest updates on PHITS, a versatile radiation transport code, focusing specifically on track-structure models are presented. Track structure calculations are methods used to simulate the movement of charged particles while explicitly considering each atomic reaction. Initially developed for radiation biology, these calculation methods aimed to analyze the radiation-induced damage to DNA and chromosomes. Several track-structure calculation models, including PHITS-ETS, PHITS-ETS for Si, PHITS-KURBUC, ETSART, and ITSART, have been developed and implemented to PHITS. These models allow users to study the behavior of various particles at the nano-scale across a wide range of materials. Furthermore, potential applications of track-structure calculations have also been proposed so far. This collection of track-structure calculation models, which encompasses diverse conditions, opens up new avenues for research in the field of radiation effects.