无机闪烁体性能测试方案研究  

Study on performance test plan of inorganic scintillator

作　　者：尹士玉 郭浩 颜敏 王志刚[2,3] 马丽双 张凌峰 钱森 Yin Shiyu;Guo Hao;Yan Min;Wang Zhigang;Ma Lishuang;Zhang Lingfeng;Qian Sen(School of Mechanical and Materials Engineering,North China University of Technology,Beijing 100144,China;Institute of High Energy Physics,Chinese Academy of Sciences,Beijing 100049,China;State Key Laboratory of Particle Detection and Electronics,Beijing 100049,China)

机构地区：[1]北方工业大学机械与材料工程学院,北京100144 [2]中国科学院高能物理研究所,北京100049 [3]核探测与核电子学国家重点实验室,北京100049

出　　处：《光电工程》2021年第6期40-49,共10页Opto-Electronic Engineering

基　　金：国家自然科学基金资助项目(11675205,11675196);中国科学院青年创新促进会经费资助;核探测与核电子学国家重点实验室资助项目(SKLPDE-ZZ-201902)。

摘　　要：为满足诸如大型对撞机实验探测器研制、空间载荷量能器等大科学工程和新型医疗影像设备TOF-PET对闪烁体的筛选需求,对闪烁体的闪烁性能(发射光谱、光输出、能量分辨率、衰减时间、余辉以及符合时间分辨率等)进行了研究,并针对不同闪烁体样品的测试需求设计了一整套完整的无机闪烁体性能测试方案。在发射光谱测试中选择了不同的激发源进行对比测试,对能量分辨率与符合时间分辨等闪烁性能的测试条件进行优化,并成功应用于热门闪烁体掺杂铈的硅酸钇镥(LYSO:Ce)和钆铝镓石榴石(GAGG:Ce)的性能研究中,取得了较好的测试结果。In order to respond to the scintillator screening requirements of large scientific projects and the new medical imaging equipment such as the development of large-scale collider experimental detectors,space load ca-lorimeters and TOF-PET,our laboratory conducts research on the scintillation performance(emission spectrum,light output,energy resolution,decay time,afterglow,coincidence time resolution,etc.)of scintillators.A complete set of inorganic scintillator performance test programs is designed for the optimal performance of different scintillator samples.In the test of emission spectrum,different excitation sources were selected for comparison test.The energy resolution and the test conditions of the scintillation performance such as time resolution were optimized,which were successfully applied to the performance research of popular scintillators including cerium-doped yttrium lutetium si-licate(LYSO:Ce)and gadolinium aluminum gallium garnet(GAGG:Ce),and good test results were obtained.The energy resolution of LYSO:Ce and ceramic GAGG:Ce scintillators are 7.9%and 5.4%,respectively,and the coinci-dence time resolution of the LYSO:Ce scintillator can reach 94.3 ps.

关 键 词：无机闪烁体 性能测试 能谱 能量分辨率 符合时间分辨率 

分 类 号：TL812.1[核科学技术—核技术及应用]