A Monte-Carlo simulation method for the study of self-powered neutron detectors

作者:Cui, Tongyuan; Yang, Yigang*; Xue, Hongyuan; Kuang, Hongbo
来源:Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment , 2020, 954: 161383.
DOI:10.1016/j.nima.2018.10.061

摘要

Self-powered neutron detectors (SPND) play a key role in the monitoring of the neutron flux in the reactor core. In this research, a modified simulation method is proposed and realized in order to predict the performance of the SNPD that might be affected by a variety of parameters of the detector. Compared with the methods proposed by researchers in the past, this method involves more comprehensive physical processes, and it can be used to analyze the sensitivity and life-span of a practical detector under real reactor conditions. The research results are compared with the experimental results and show a relative error < 4%, better than the relative error of > 9% of past research.