关于高纯锗γ能谱分析方法探测下限的探讨  

Discussion on the Detection Limit for HPGe γ Spectrometer

作　　者：史蕾 常明杰 郭学文 SHI Lei;CHANG Mingjie;GUO Xuewen(Shandong Nuclear and Radiation Safety Monitoring Center,Jinan Shandong 250117)

机构地区：[1]山东省核与辐射安全监测中心,山东济南250117

出　　处：《中国科技纵横》2024年第17期85-87,共3页China Science & Technology Overview

摘　　要：本文通过对判断限和探测下限的理解,对探测下限计算公式进行推导,具体分析应急情况下高纯锗γ能谱仪探测下限的应用,为低水平放射性测量提供实际应用依据。同时,提出优化高纯锗γ能谱探测下限的方法,以反康普顿γ谱仪为例,对比反康模式和无反康模式探测下限的差异。By understanding the judgment limit and detection lower limit,deriving the calculation formula for the detection lower limit,and specifically analyzing the application of the detection lower limit of high-purity germanium γ energy spectrum analysis in emergency situations,providing practical application basis for low-level radioactive measurement.Provide optimized high-purity germanium γ The method of detecting the lower limit of energy spectrum,using anti Compton method γ taking the spectrometer as an example,compare the difference in the lower detection limit between anti Compton mode and non anti Compton mode.

关 键 词：高纯锗γ能谱 探测下限 放射性 

分 类 号：TL817.2[核科学技术—核技术及应用]