研究堆辐照孔道内热中子注量率测量方法研究  

Research on Measurement of Neutron Flux in Irradiation Channels of Research Reactor

作　　者：尹志涛[1,2] 吕征[2] 王玉林[2] 郑伍钦[2] 

机构地区：[1]国家核电技术有限公司北京研发中心,北京100190 [2]中国原子能科学研究院,北京102413

出　　处：《核动力工程》2014年第1期117-121,共5页Nuclear Power Engineering

基　　金：中国原子能科学研究院堆工所29室和计量站的大力支持

摘　　要：采用经典的活化箔法测量研究堆辐照孔道内热中子注量率的相对分布,并选择孔道内有代表性的点进行中子温度和热中子绝对注量率的测量;最后利用镉比修正法对实验结果进行校核。分析表明,2种方法得到的数据符合较好,可以相互校核用于其他孔道内的绝对热中子注量率测量。Relative distribution of thermal neutron flux in the irradiation channel is measured by classical activation foil method. After that, on a representative point in the irradiation channel, neutron temperature and absolute neutron flux are also measured. Cadmium ratio correction method is used to check the experiment result in the end. Comparative analysis shows that the results from two different methods are agreed pretty well, which adds the credibility of experiment results.

关 键 词：热中子注量率 中子温度 相对分布 活化箔法 镉比修正法 

分 类 号：TL375[核科学技术—核技术及应用]