β衰变型自给能堆芯中子探测器灵敏度K因子研究(第一篇:理论分析、计算模型及计算结果)  

Study on Sensitivity K Factor of Self-powered Detector with β Decay

作　　者：于稼驷 Yu Jiasi(Ministry of Ecology and Environment of the People’s Republic of China,Beljing 100006,China)

机构地区：[1]中华人民共和国生态环境部,北京100006

出　　处：《核安全》2024年第1期56-80,共25页Nuclear Safety

摘　　要：本文对β衰变型自给能堆芯中子探测器灵敏度K因子进行了较全面、深入、系统的研究,建立了热中子灵敏度K因子、超热共振中子灵敏度K因子、中子场全谱中子灵敏度K因子的完整理论体系,给出了计算这些K因子的数学模型及公式,并提供了各K因子的计算结果,论证了探测器的轻水堆K因子与重水堆K因子的关系。通过与其他文献发表的灵敏度K因子进行比较,验证了本文提出的灵敏度K因子理论模型是科学的,本文给出的灵敏度K因子计算结果是可信的。In this paper,the sensitivity K factor of self-powered detector withβdecay is studied comprehensively,deeply and systematically.A complete theoretical systems of thermal neutron K factor,epi-thermal resonance neutron K factor and neutron field full spectrum neutron K factor are established.The mathematical models and formulas for calculating these K factors are given,and the calculation results of each K factor are provided.The relationship between K factor of light water reactor and K factor of heavy water reactor with detectors of the same kind is demonstrated.By comparing with sensitivity K factor published in other literatures,it is verified that the theoretical model of sensitivity K factor proposed in this paper is scientific,and the calculation results of sensitivity K factor given in this paper are credible.

关 键 词：自给能 探测器 灵敏度 K因子 

分 类 号：TL375.4[核科学技术—核技术及应用]