高纯锗能谱仪系统研制  

Development of HPGe Spectrometer System

作　　者：何高魁[1] 孙慧斌[2] 郝晓勇[1] 刘义保[3] 代传波 邓长明[5] 王柱[6] 廖辉 汪天照 胡世鹏[2] 邵俊琪 张怀强[3] 刘海峰 杨松 贾伟强 厉文聪 刘洋[1] 阙子昂 田华阳[1] 张向阳[1] HE Gao-kui;SUN Hui-bin;HAO Xiao-yong;LIU Yi-bao;DAI Chuan-bo;DENG Chang ming;WANG Zhu;LIAO Hui;WANG Tian-zhao;HU Shi-peng;SHAO Jun-qi;ZHANG Huai-qiang;LIU Hai-feng;YANG Song;JIA Wei-qiang;LI Wen-cong;LIU Yang;QUE Zi-ang;TIAN Hua-yang;ZHANG Xiang yang(China Institute of Atomic Energy,Beijing 102413,China;Shenzhen University,Shenzhen 518060,Chinas;East China University of Technology,Nanchang 330032,China;Wuhan Second Ship Design and Research Institute,Wuhan 430064,China;China Institute of Radiation Protection,Shanxi 030006,China;Wuhan University,Wuhan 430072.China;Hubei Fangyuan Environmental Protection Technology Co Ltd,wuhan 430074,China)

机构地区：[1]中国原子能科学研究院,北京102413 [2]深圳大学,深圳518060 [3]东华理工大学,南昌330032 [4]武汉船舶第二研究所,武汉430064 [5]中国辐射防护研究院,山西030006 [6]武汉大学,武汉430072 [7]湖北方圆环保科技有限公司,武汉430074

出　　处：《核电子学与探测技术》2021年第1期55-61,共7页Nuclear Electronics & Detection Technology

基　　金：国家重点研发计划重点专项(2017YFF0106500)资助。

摘　　要：介绍了高纯锗能谱仪系统的研制。项目突破了探测器级高纯锗单晶提纯、高纯锗探测器表面钝化保护、高计数率数字化多道分析器以及无源效率刻度等关键技术,研制出高纯锗能谱仪系统样机。开展了高纯锗能谱仪在核燃料包壳破损在线监测、中高放射性废物桶核素源项无损检测和材料点缺陷特性分析示范应用研究。性能测试表明:85%探测效率的能谱仪的能量分辨率为1.98keV(1.33 MeV伽马射线),峰康比好于61。The development of High Purity Germanium spectrometer system is introduced.This project has broken through the key technologies of detector grade high-purity germanium single crystal purification,high-purity germanium detector surface passivation,high counting-rate digital multi-channel analyzer and source-less efficiency calibration,and successfully developed a highpurity germanium spectrometer system.The demonstration application research of HPGe spectrometer in on-line monitoring of nuclear fuel cladding damage,non-destructive detection of nuclide source term of medium and high-level radioactive waste barrels and analysis of material point defect characteristics were carried out.The performance test shows that the energy resolution of the spectrometer with 85%detection efficiency is 1.98 keV(1.33 MeV gamma ray),and the peak-to-Compton ratio is better than 61.

关 键 词：高纯锗单晶 高纯锗探测器 离子注入 多道分析器 

分 类 号：TL814[核科学技术—核技术及应用]