摘要
高纯锗探测器(HPGe)对于低本底稀有事例探测的发展具有重要的意义.本文介绍了HPGe的工作原理及其制备工艺,分析了对探测器起关键作用的钝化层和死层部分,并讨论了降低本底的关键技术.对于HPGe应用于包括暗物质探测和无中微子双贝塔衰变的稀有事例探测实验的进展,重点介绍了应用HPGe的CDEX、SuperCDMS、GERDA、MAJORANA等国际领先的稀有事例探测合作组相关实验技术和物理进展,进一步分析了HPGe用于下阶段国际稀有事例探测的发展方向.
High purity germanium detector is of great significance to development of low background rare event detectors. This paper reviews work principle and preparation process of HPGe. Both passivation and dead layers are analyzed. Key techniques in background reduction are discussed. HPGe detectors have been used in rare event detection including dark matter detection and neutrinoless double beta decay detection. Typical works include those of CDEX,SuperCDMS,GERDA,and MAJORANA. Future directions of HPGe for international rare events detections are analyzed.
作者
杜晟杰
吕沙沙
刘圆圆
田阳
李秀霞
李玉兰
DU Shengjie;Lü Shasha;LIU Yuanyuan;TIAN Yang;LI Xiuxia;LI Yulan(Key Laboratory of Beam Technology of Ministry of Education,College of Nuclear Science and Technology,Beijing Normal University,100875,Beijing,China;Department of Engineering Plhysics,Key Laboratory of Particle&Radiation Imaging of Ministry of Education,Tsinghua University,100084,Beijing,China;Joint Research Center,Nuctech Company Limited,100084,Beijig,China)
出处
《北京师范大学学报（自然科学版）》
CAS
CSCD
北大核心
2022年第5期781-789,共9页
Journal of Beijing Normal University(Natural Science)
基金
国家自然科学基金青年基金资助项目(12005017)。
关键词
高纯锗探测器
稀有事例
暗物质
无中微子双贝塔衰变
本底
high purity germanium detector
rare event
dark matter
neutrinoless double beta decay
background
