Investigation of single event upset subject to protons of intermediate energy range (RAM)

Nuclear reaction models to reproduce p+Si nuclear reactions precisely in the incident proton energy region of below 50 MeV are investigated, and a computer code based on exciton models is developed. Si irradiation experiments in the intermediate energy region were performed to measure energy deposited by p+Si nuclear reactions with two totally depleted Si detectors in face-to-face arrangement. Coincident signals were analyzed by a two-dimensional pulse height analyzer. This method is shown to be effective in discriminating signals of contaminating particles. The experimental observations are in good agreement with the computed predictions. The single-event upset (SEU) cross section of the 93L422 (RAM) is also compared with the calculated values.>