几种常用闪烁体衰减时间常数的实验测量  

Decay Time Constant Measurement for Some Scintillator

作　　者：李忠宝[1] 彭太平[1] 胡孟春[1] 唐登攀[1] 张建华[1] 陈钰钰[1] 

机构地区：[1]中国工程物理研究院核物理与化学研究所,四川绵阳621900

出　　处：《核电子学与探测技术》2013年第12期1523-1526,1562,共5页Nuclear Electronics & Detection Technology

摘　　要：针对强脉冲辐射场快中子、伽马脉冲信号的测量需求,对几种常用有机、无机闪烁体的衰减时间常数进行了测量;分别利用透紫光电探测器和普通光电探测器配闪烁体,观察光谱匹配对闪烁探测器时间性能的影响。测量结果表明闪烁探测器的时间性能对光谱匹配存在依赖关系,并给出了闪烁体的衰减时间常数。在测量过程中发现一种新的无机闪烁体,其时间性能优于BaF2晶体,可作为强脉冲辐射场快伽马脉冲信号测量的一种候选闪烁体。For the use in high imtensity neutron and γpulse radiation field ,the timedecay constant of some or-ganic and inorganic scintillator are measured .Both ordinary and UV-transmitting photoelectric cells are applied respectively ,that is aiming for researching the effect of scintillator emission spectrum on detectors ＆#39;time re-sponse .The results from this experiment show that：there is definite relationship between the time response of scintillator detector and the scintillator＆#39;sd emission spectrum .The time decay consdtant are provided .The time capability of Yb：YAP scintilltor is better than BaF 2 scintillator ,It may be used in high intensity fast γpulse ra-diation field .

关 键 词：有机闪烁体 无机闪烁体 衰减时间常数 光谱匹配 

分 类 号：TL812[核科学技术—核技术及应用] TL816