体源HPGe探测器全能峰效率的参量化归一  

Parametric Normalization for Full-Energy Peak Efficiency of HPGe γ-ray Spectra at Different Counting Positions for Bulky Sources

作　　者：聂鹏[1] 倪邦发[1] 田伟之[1] 王平生[1] 肖才锦[1] 黄东辉[1] 刘存兄[1] 张贵英[1] 陈喆[1] 秦亚丽[1] 张海青[1] 

机构地区：[1]中国原子能科学研究院核物理研究所,北京102413

出　　处：《原子能科学技术》2010年第2期206-209,共4页Atomic Energy Science and Technology

摘　　要：对体源的HPGe探测器全能峰效率与测量几何关系的有效作用深度(EID)原理进行了系统研究。通过对一定体积的体源进行的实验测量以及MCNP软件模拟实验,证明了EID原理在一定范围内亦适用于体源,推广了该原理的适用范围。此结论可用于体源的效率刻度工作中。The application of effective interaction depth （EID） principle for parametric normalization of full energy peak efficiencies at different counting positions, originally for quasi-point sources, was extended to bulky sources （within φ30 mm×40 mm） with arbitrary matrices. It is also proved that the EID function for quasi-point source can be universally used for cylindrical bulky sources with the geometric center as effective point source. In addition, the EID principle was theoretically verified by MCNP calculations.

关 键 词：体源 参量法 有效作用深度 MCNP模拟 

分 类 号：TL81[核科学技术—核技术及应用]