Measurement of nuclide production cross sections with 0.4 GeV - 3.0 GeV proton beams at J-PARC, 2; Cross sections of light nuclides

Matsuda, Hiroki  ; Meigo, Shinichiro   ; Iwamoto, Hiroki   ; Maekawa, Fujio  

For the improvement of nuclear design for Accelerator-Driven System (ADS), production cross section with higher accuracy is required. For data acquisition around 1 GeV energy range at J-PARC, protons having energy 0.4 to 3.0 GeV were irradiated on metal samples such as carbon and beryllium. Experiment and analysis methods were employed that were presented in the AESJ2018 autumn meeting. They were compared with the evaluated data (JENDL-HE/2007), the calculated one by PHITS code, and the one by the latest intranuclear cascade model INCL++ and a statistical decay model ABLA07. It was found that the cross section of and in this experiment has higher accuracy (approx. 7%) than other experiments due to precise beam control at J-PARC. JENDL/HE-2007 in which reaction is stored among light nuclides agreed with these results and other experiments within 9% uncertainty. PHITS calculation also showed a good agreement over the whole energy range. Especially PHITS in which the original GEM model was implemented, showed better agreement above 1 GeV range. Though the INCL++/ABLA07 calculations excellently agree with the experiments, the calculation overestimated over the whole range. In reaction, new experimental data were obtained around few GeV range. It was found that the calculation underestimated about 20 - 50% over the whole range.