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Oral presentation

Development of track-structure simulation mode of low energy electrons in PHITS

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

no journal, , 

A general purpose particle transport simulation code, PHITS can simulate the radiation behavior in arbitrary 3-D systems. Then, this code is applied to researches of several fields which are related to radiation transport phenomena. However, as the code has a cutoff energy of 1 keV for electron transport calculation in materials, it is difficult to study microscopic radiation interaction. To clear the problem, we implemented track structure code into the PHITS to study microscopic behavior of low energy electrons below 1 keV. The implement made it possible to calculate the localized energy deposition of nanoscale by the low energy electrons in materials. Various application studies involved in microscopic radiation interaction such as a DNA damage simulation will be expected using this track-structure simulation mode.

Oral presentation

Track-structure simulation mode of low energy electrons for nanoscale spatial resolution

Kai, Takeshi; Sato, Tatsuhiko

no journal, , 

When applying a general purpose particle transport simulation code such as PHITS to the study of biological body influence by radiation exposure, it is important to evaluate energy deposition (dose) for organ size, and to simulate precisely radiation interaction in DNA size (nanoscale) because low energy secondary electrons, which become an importance for chemical reaction process after energy deposition, have been included some unknown factors. To clear the problem, we developed track structure simulation mode to make behavior calculation of the low energy electron in arbitrary 3-D systems and various materials possible. Various application studies involved in microscopic radiation interaction such as DNA damage simulations will be expected using this simulation mode implemented below PHITS ver.2.93.

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