[3E09-14] Charged particle reaction

[3E13] Contribution of Isobaric Analog Resonance to (p,n) Spectra at Intermediate Energies

*Shintaro Hashimoto¹, Tatsuhiko Sato¹, Koji Niita² (1. JAEA, 2. RIST)

Keywords:PHITS, particle transport simulation code, Isobaric Analog Resonance, Intra-Nuclear Cascade model

PHITS has been used for many purposes such as radiation shielding in accelerator facilities. The Intra-Nuclear Cascade model INCL implemented in PHITS reproduces inclusive (p,n) spectra at intermediate energies very well. However, INCL is not enough to describe a peak structure in the spectra at forward angles, because the model does not include resonances of isobaric analog states or Gamow-Teller. In this study, we analyzed contributions of the resonances to the neutron spectra, and then developed a model to improve the reproduction of the calculated result by PHITS.