Study of microscopic radiation interaction of low energy electron in condensed phase; Development of electron transport calculation method

Kai, Takeshi   ; Ogawa, Tatsuhiko   ; Abe, Shinichiro   ; Sato, Tatsuhiko   

In study of radiation interaction induced in small spatial region of nanoscale, it is important to reveal electron behavior below 1 keV and its energy deposition. However, current radiation transport simulation code PHITS cannot simulate precisely the behavior in the materials. To clear the question, we have developed track structure code, also have an implementation plan of the code into PHITS. We calculated the microscopic behavior of the electron in water by using the developed code. As the results, we could predict theoretically that the electron thermalization progress contemporaneously with formation of prehydrated electron against previous prediction. In this presentation, we report our outcomes obtained from the developed track structure code, future plan for and implementation of the code into the PHITS as well as the functional extension.