HPGe探测器的效率曲面研究  

Studies on the Efficiency Surface of the HPGe Detector

作　　者：李琦[1] 连琦[1] 常永福[1] 夏兵[1] 

机构地区：[1]西北核技术研究所,陕西西安710024

出　　处：《原子能科学技术》2001年第3期254-257,共4页Atomic Energy Science and Technology

摘　　要：研究了高效率HPGe探测器测量近距离面源情况下的效率曲面。通过测量 8种单能γ射线核素点源在探测器表面各点的相对效率及其面源效率 ,拟合得到了HPGe探测器的峰效率曲面和总效率曲面的解析表达式。使用该曲面计算的60 Co、152 Eu的真符合校正因子与实验测量结果基本一致。The efficiency surface of the HPGe detector in close distance between the plane radiation source is studied in the paper. According to having been measured relative efficiency of 8 kinds of dot sources with single energy γ ray, the peak efficiency and the total efficiency surfaces of the HPGe detector are fitted. The true concidence correction factors of 60 Co and 152 Eu calculated by the efficiency surface agree with the experimental results measured.

关 键 词：效率曲面 真符合校正因子 面源 点源 HPGE探测器 r射线 

分 类 号：TL816.2[核科学技术—核技术及应用]