热分析法测量中子通量密度的探测器材料选择  

The Choice of the Material for Neutron Flux Density Measurement Detector by Thermal Analysis

作　　者：李来冬 朱庆福[1] 杨铜锁[2] 史永谦[1] 鲁瑾[1] 王璠[1] 

机构地区：[1]中国原子能科学研究院,北京102413 [2]西京学院,西安710123

出　　处：《核电子学与探测技术》2014年第10期1169-1172,共4页Nuclear Electronics & Detection Technology

基　　金：国家自然基金项目(A050504)

摘　　要：热分析法测量中子通量密度是一种新测量方法,它基于热分析技术测量经中子辐照后的探测器材料所放出的退火热量。选择合适的探测器材料是对该方法进行研究的前提,工作的主要内容是根据该测量方法的原理采用多种含10B物质进行实验研究,选出合适的探测器材料。通过对实验结果的对比分析,总结出了热分析法探测器材料需要满足的条件,并初步选定晶体硼与磷灰石的混合物作为热分析法探测器材料,为以后进一步的研究提供参考。Measuring neutron flux density by thermal analysis is a new method ,which is based on measuring the annealing heat relaxed by detector material exposure to neutron through thermal analysis .Choosing the appropri-ate detector material is the precondition for the study of the method , the main content of the work is that based on the principle of the measurement method , experiment research is carried out by using several kinds of materi -als containing 10 B, to choose the suitable detector material .Finally, through comparison and analysis of experi-mental results , the thermal analysis of detector material conditions to be met is summarized , and the mixture of crystal boron and apatite is preliminarily selected as detector material .

关 键 词：中子通量密度 热分析 退火热量 含^10B物质 

分 类 号：TL816[核科学技术—核技术及应用]