MCNP多方式计算16Nγ能谱功率监测仪探测效率  

MCNP Multi-Mode Calculation of Detection Efficiency of 16N γ Energy Spectrum Power Monitor

作　　者：汪伦 雷鸣[2] 张文利 叶芝甫 曾德凯 屈国普[1] WANG Lun;LEI Ming;ZHANG Wen-li;YE Zhi-fu;ZENG De-kai;QU Guo-pu(University of South China,Hengyang Hunan 421001,China;Nuclear Power Institute of China,Chengdu 610213,China)

机构地区：[1]南华大学核科学技术学院,湖南衡阳421001 [2]中国核动力研究设计院,成都610213

出　　处：《核电子学与探测技术》2020年第1期109-114,共6页Nuclear Electronics & Detection Technology

基　　金：国家0然科学基金(11175083);湖南省自然科学基金(2018JJ2314)资助。

摘　　要：针对MC法模拟计算16Nγ能谱功率监测仪探测效率误差较大问题,采用了直接计算、分段衔接与剂量估算三种方法,分析了某压水堆基于γ能谱的16N功率监测仪设计,三种方法根据该设计模拟得出的探头计数率结果接近,验证了三种计算方法的一致性,提供了可靠的16N监测仪探测效率模拟结果.Aiming the problem that the simulation error of 16N power monitor detection efficiency based on gamma energy spectrum is big by MC method calculation,the paper uses three calculation methods:direct calculation,bootstrapping and dose estim ation,and analyzes the design of 16 N power monitor based on γ energy spectrum of a pressurized water reactor.Those detector count rates are approximate by the three methods*verifying the consistency of the three calculation methods,and providing a reliable simulation result of the 16N monitor detection efficiency.

关 键 词：Γ射线 铅屏蔽 MCNP模拟 探测效率计算 

分 类 号：TL82[核科学技术—核技术及应用]