YAP:Ce闪烁探测器的γ射线灵敏度研究  

Studies on γ-ray sensitivity of YAP:Ce scintillation detector

作　　者：张建华[1] 张传飞[1] 胡孟春[1] 王振通[1] 唐登攀[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》2005年第2期200-203,共4页Nuclear Electronics & Detection Technology

摘　　要：使用进口的新型YAP:Ce无机晶体和近年国内研制的CeF3,PbWO4配大线性电流光电倍增管组成闪烁探测器系统,用60Co和137Csγ源实验测量探测系统的γ射线灵敏度;并用MCNP/4B程序进行建模计算;最后对理论计算和实测数据进行了比较,分析研究。得出结论:新型YAP:Ce无机晶体对γ射线的灵敏度相对较高,对60Co源和137Cs源γ射线而言,是同体积的CeF3晶体的10倍多,利于γ射线测量。The detectors are composed of YAP:Ce, CeF_3 and PbWO_4 with PMT which has large line current. In the experiments on ()^(60)Co and ()^(137)Cs radioactive sources we have measured the γ-ray sensitivities of the detectors. The data have been analyzed and γ-ray sensitivities of the detectors are gained. From the experiments and the results of the modeling with MCNP/4B program we have drawn the conclusion: the γ-ray sensitivity of YAP:Ce is more than 10 times of that of CeF_3 with the same volume; YAP:Ce-an alternative solution for γ-ray detecting.

关 键 词：Γ射线 ^60CO源 晶体 ^137CS 灵敏度 研究 国内 闪烁探测器 CeF3 光电倍增管 

分 类 号：TL812[核科学技术—核技术及应用]