Radiation damage calculation in PHITS for materials irradiated with neutrons, protons and deuterons over a wide energy range

Iwamoto, Yosuke   ; Iwamoto, Hiroki   ; Harada, Masahide   ; Niita, Koji*; Sawai, Tomotsugu

The displacement cross sections for common structural materials were calculated using the radiation damage model in PHITS. The displacement cross sections with the defect production efficiency gave good agreement with experimental data. For application to the DPA calculations at 400 MeV proton and 40 MeV deuteron, calculated cross sections were folded into calculated particle fluxes in PHITS. Thus the PHITS including the displacement cross sections can be useful to calculate the DPA values in materials used at accelerator facilities that will be exposed to intense primary and secondary particle irradiation. It will also be useful at fission and fusion reactor facilities.