An efficient method and system for simultaneously measuring the performance of vast scintillating materials  

作　　者：CHEN Yan ZHANG Zhiming LI Daowu SHUAI Lei HUANG Xianchao TANG Haohui LI Ting ZHUANG Kai WANG yingjie LIU Yantao ZHANG Yiwen CHAI Pei LIU Shuangquan ZHU Meiling WANG Baoyi WEI Long 

机构地区：[1]Laboratory of Nuclear Analysis Techniques, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China [2]Beijing Engineering Research Center of Radiographic Techniquesand Equipment, Beijing 100049, China [3]Graduate University of Chinese Academy of Sciences, Beijing 100049, China

出　　处：《Nuclear Science and Techniques》2012年第3期144-149,共6页核技术（英文）

基　　金：Supported by National Natural Science Foundation of China (10805049,11175200);Knowledge Innovation Program of the Chinese Academy of Sciences,Grant (KJCX2-EW-N06);Special-funded Programme on National Key Scientific Instruments and Equipment Development (2011YQ120096)

摘　　要：A method and system for automatically and simultaneously measuring the light output of multiple scintillators,or each scintillating unit of an array,were developed.Using a large area flat panel PSPMT H8500,the light output and energy resolution were obtained automatically by comparing with reference scintillators or array using an Energy Table,Look-up Table and energy spectrum data.The aim of developing an efficient performance evaluation of scintillators was achieved.Using the method,a scintillator performance testing system was set up and six LYSO crystals and a 3×3 LYSO array were measured.The results showed that the light output and energy resolution were accurately measured automatically.The deviation of repeat measurements for the same sample was not more than 2%,and the nonlinear deviation of the system was not more than 3%.The system is suitable for measuring the performance of crystals,especially where the mass measurement of crystals and arrays is required.A method and system for automatically and simultaneously measuring the light output of multiple scintillators, or each scintillating unit of an array, were developed. Using a large area flat panel PSPMT H8500, the light output and energy resolution were obtained automatically by comparing with reference scintillators or array using an Energy Table, Look-up Table and energy spectrum data. The aim of developing an efficient performance evaluation of scintillators was achieved. Using the method, a scintillator performance testing system was set up and six LYSO crystals and a 3x3 LYSO array were measured. The results showed that the light output and energy resolution were accurately measured automatically. The deviation of repeat measurements for the same sample was not more than 2%, and the nonlinear deviation of the system was not more than 3%. The system is suitable for measuring the performance of crystals, especially where the mass measurement of crystals and arrays is required.

关 键 词：性能测试系统 同时测量 闪烁材料 能量分辨率 线性偏差 光输出 绩效评估 重复测量 

分 类 号：TN253.06[电子电信—物理电子学] TB39[一般工业技术—材料科学与工程]