电致冷高纯锗γ谱仪系统的管理与维护

Management and maintenance of HPGe detector with electric refrigeration

高纯锗探测器是环境放射性测量的常见设备,其工作所需的低温环境给高纯锗γ谱仪的日常维护提出了更多要求。在总结三年不间断运行经验基础上,归纳了电致冷高纯锗γ谱仪系统的日常维护事项,包括供电、除湿等运行保障以及SHDW、探测器“冷凝”等故障的处理。同时,强调了实验室日常管理的重要性,并对高校实验室的管理提出了一些思考与建议。

As one of important equipments for environmental radioactivity measurement,the high purity germanium(HPGe)detector must be cooled to a low temperature during proper functioning.Based on continuous running state within three years,the service conditions of an HPGe detector system supported by electric mechanical coolers were investigated,which includes the running safeguards such as supply of power and control of humidity,also some common operation troubles such as shutdown(SHDW)and condensing were summarized.Furthermore,it is indicated that daily managements should be attracted more attention in laboratory construction,and some primary advises for the managements of laboratory in colleges and universities were given in this work.