Study of the THGEM detector with a reflective CsI photocathode  

作　　者：刘宏邦 郑阳恒 谢一冈 吕军光 周莉 俞伯祥 章爱武 安正华 谢宇广 张东 郑志鹏 

机构地区：[1]Graduate University of Chinese Academy of Sciences [2]Guangxi University [3]Institute of High Energy Physics Chinese Academy of Sciences [4]Beijing Nuclear Instrument Factory

出　　处：《Chinese Physics C》2011年第4期363-367,共5页中国物理C（英文版）

基　　金：Supported by National Natural Science Foundation of China (10775181,10775151);A. Breskin of Weizmann Inst., P. Picchi and A.Braem of CERN for their friendly discussions andkind support;the NNSF of China for support of this work

摘　　要：The THGEM detector without and with a CsI has been tested successfully. The optimal parameters of THGEM have been determined from eight samples. The UV photoelectric effect of the CsI photocathode is observed. The changing tendency related to the extraction efficiency （εextr） versus the extraction electric field is measured, and several electric fields influencing the anode current are adjusted to adapt to the THGEM detector with a reflective CsI photocathode.The THGEM detector without and with a CsI has been tested successfully. The optimal parameters of THGEM have been determined from eight samples. The UV photoelectric effect of the CsI photocathode is observed. The changing tendency related to the extraction efficiency （εextr） versus the extraction electric field is measured, and several electric fields influencing the anode current are adjusted to adapt to the THGEM detector with a reflective CsI photocathode.

关 键 词：THGEM CSI PHOTOCATHODE UV 

分 类 号：O572.212[理学—粒子物理与原子核物理]