[2C01-07] Irradiation Effect 1

[2C01] Calculations of dpa based on new athermal recombination correction model in various radiation enviroments

*Yosuke Iwamoto¹, Shin-ichiro Meigo¹, Shintaro Hashimoto¹ (1. JAEA)

Keywords:dpa, NRT model, athermal recombination correction (arc), PHITS code

The displacements per atom based on the athermal recombination correction (arc-dpa) is more reliable radiation damage index than the Norgett−Robinson−Torrens model (NRT-dpa). In this study, we calculated the rescaling factor (NRT-dpa/arc-dpa) for neutron irradiations at fission reactor, fusion reactor and accelerator facilities and charged particle irradiations. As a results, we found that this factor ranges from 1.4 to 5.7 for each material and it influences on the evaluation of dpa values.