Collimated LaBr_3 detector response function in radioactivity analysis of nuclear waste drums  

作　　者：QIAN Nan WANG Dezhong WANG Chuan ZHU Yuelong MAUERHOFER Eric 

机构地区：[1]School of Nuclear Science and Engineering,Shanghai Jiao Tong University [2]Nuclear Power Operations Management Co.,Ltd. [3]Institute of Energy and Climate Research – Nuclear Waste Management,Forschungszentrum Jülich Gmbh

出　　处：《Nuclear Science and Techniques》2013年第6期23-28,共6页核技术（英文）

基　　金：Supported by Research Fund for the Doctoral Program of Higher Education of China(No.20120073130009);National Natural Science Foundation of China(No.11175118);Research and innovation project of Shanghai Municipal Education Commission(No.12ZZ022)

摘　　要：The properties of a Lanthanum bromide(LaBr3)detector and its response functions were investigated via experiments and simulations in this paper.The LaBr3detector had good relative energy resolution and higher efficiency than a high-purity germanium detector.Monte Carlo and other numerical methods were used to calculate the efficiencies of a LaBr3detector with a square collimation window.A model of the numerical method was established based on a pure geometric model that was consistent with the experimental situation.The results showed that the detector response functions calculated by these methods were in great agreement with experimental results.The properties of a Lanthanum bromide （LaBr3） detector and its response functions were investigated via experiments and simulations in this paper. The LaBr3 detector had good relative energy resolution and higher efficiency than a high-purity germanium detector. Monte Carlo and other numerical methods were used to calculate the efficiencies of a LaBr3 detector with a square collimation window. A model of the numerical method was established based on a pure geometric model that was consistent with the experimental situation. The results showed that the detector response functions calculated by these methods were in great agreement with experimental results.

关 键 词：LaBr3 响应函数 放射性分析 准直 探测器 检测器具 料桶 数值方法 

分 类 号：TL941[核科学技术—辐射防护及环境保护]