[3B04-07] Charged Particle Reaction

[3B04] Measurement displacement cross-section of copper for 3-GeV protons

*Shin-ichiro Meigo¹, Hiroki Matsuda¹, Yosuke Iwamoto¹, Makoto Yoshida², Shoichi Hasegawa¹, Tatsushi Nakamoto², Fujio Maekawa¹, Hiroki Iwamoto¹, Taku Ishida², Shunsuke Makimura² (1. J-PARC/JAEA, 2. J-PARC/KEK)

Keywords:Displacement cross-section, 3 GeV, proton, Copper, J-PARC, PHITS

At the 3 GeV proton synchrotron accelerator facility in J-PARC Center, a displacement cross-section of copper with 3 GeV protons was measured. As a result, it was the first time in the world that we could obtain the displacement cross-section of 3 GeV protons. Calculations by the NRT model commonly used for Displacement per Atom (DPA) evaluations, the NRT model was found to overestimate the experiment approximately 3 times. A new model, which is recently developed by Nordlund et al, was shown to reproduce the experiment well.