[3D05-08] Neutronics & Small Neutron Facility

[3D06] Evaluation of soft-error rates at the 18 MeV proton cyclotron-driven neutron source by energy-dependent neutron soft-error cross-sections

*Ryu Kiuchi¹, Hirotaka Sato¹, Takashi Kamiyama¹, Hidenori Iwashita², Yoshiharu Hiroshima², Yuichiro Okugawa², Michihiro Furusaka¹, Yoshiaki Kiyanagi³ (1. Hokkaido Univ., 2. NTT Space Environment and Energy Laboratories, 3. Nagoya Univ.)

Keywords:Fast neutron energy spectrum, Neutron-induced soft-error, Energy-dependent soft-error cross-section, Proton cyclotron-driven neutron source, Particle transport simulation calculation

The fast neutron-induced soft-errors in semiconductor memories are becoming troubles for our society. Estimating the neutron soft-error rate in various neutron environments is an indispensable first step for solving this problem. As one of the neutron environments, we measured the soft-error rates at the neutron field of the 18 MeV proton cyclotron-driven neutron source. Besides, we examined how much it could be reproduced by a calculation of the soft-error rates using the soft-error cross-sections of FPGAs from 0.65 MeV to 800 MeV already measured by our group and the neutron energy spectra of the neutron fields obtained by particle transport simulation calculations.