摘要
主要针对核电站蒸汽发生器传热管破损的氮-16监测系统工程实践中遇到的探测效率无法用常规计算和实验得出的困难,以WWER-1000堆型为基础,建立了光子与NaI探测器介质作用的简化数学物理模型,采用EGS5蒙特卡罗程序对探测器效率进行了数值计算。计算结果与工程设计资料提供的数据符合较好,为今后研究几何位置变更与探测效率间的关系提供了基础。
The efficiency of full energy peak of N-16 monitoring system is very difficult to obtain by the calculation with commonly formula or with the experimental method.Simplified calculation model based on the N-16 monitoring system used in WWER-1000 nuclear power plants for detecting the radioactivity level of the main steam line is established for simulating with EGS5 Monte Carlo code.The calculated results of Monte Carlo simulation show good agreement with the data recommended by supplier within ＋1.0%.Therefore,the efficiency of full energy peak of N-16 monitoring system is available based on monte carlo method when its position is changed.
出处
《核电子学与探测技术》
CAS
CSCD
北大核心
2011年第7期739-741,共3页
Nuclear Electronics & Detection Technology
