Characterization of large area photomultiplier ETL 9357FLB for liquid argon detector  

作　　者：杜迎帅 岳骞 刘义保 陈庆豪 李金 程建平 康克军 李元景 李玉兰 马豪 幸浩洋 余训臻 曾志 

机构地区：[1]Engineering Research Center of Nuclear Technology Application, Ministry of Education,East China Institute of Technology [2]Department of Engineering Physics, Tsinghua University [3]Key Laboratory of Particle and Radiation Imaging, Tsinghua University, Ministry of Education [4]School of Physical Science and Technology, Sichuan University

出　　处：《Chinese Physics C》2014年第7期88-91,共4页中国物理C（英文版）

基　　金：Supported by National Natural Science Foundation of China(10935005,10945002,11275107,11175099);Major State Basic Research Development Program(2010CB833006)

摘　　要：The China Dark Matter Experiment （CDEX） Collaboration will carry out a direct search for weakly interacting massive particles with germanium detectors. Liquid argon will be utilized as an anti-Compton and cooling material for the germanium detectors. A low-background and large-area photomultiplier tube （PMT） immersed in liquid argon will be used to read out the light signal from the argon. In this paper we have carried out a careful evaluation on the performance of the PMT operating at both room and cryogenic temperatures. Based on the single photoelectron response model, the absolute gain and resolution of the PMT were measured. This has laid a foundation for PMT selection, calibration and signal analysis in the forthcoming CDEX experiments.The China Dark Matter Experiment （CDEX） Collaboration will carry out a direct search for weakly interacting massive particles with germanium detectors. Liquid argon will be utilized as an anti-Compton and cooling material for the germanium detectors. A low-background and large-area photomultiplier tube （PMT） immersed in liquid argon will be used to read out the light signal from the argon. In this paper we have carried out a careful evaluation on the performance of the PMT operating at both room and cryogenic temperatures. Based on the single photoelectron response model, the absolute gain and resolution of the PMT were measured. This has laid a foundation for PMT selection, calibration and signal analysis in the forthcoming CDEX experiments.

关 键 词：dark matter PMT SER gain dark count 

分 类 号：P171[天文地球—天文学]