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Study of the THGEM detector with a reflective CsI photocathode

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【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；

【Author】 LIU Hong-Bang1,2;1) ZHENG Yang-Heng1 XIE Yi-Gang1,3 LU¨ Jun-Guang3 ZHOU Li3 YU Bo-Xiang3 ZHANG Ai-Wu3 AN Zheng-Hua3 XIE Yu-Guang3 ZHANG Dong4 ZHENG Zhi-Peng3 1 Graduate University of Chinese Academy of Sciences, Beijing 100049, China 2 Guangxi University, Naning 530004, China 3 Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China 4 Beijing Nuclear Instrument Factory, Beijing 100176, China

【机构】 Graduate University of Chinese Academy of Sciences； Guangxi University； Institute of High Energy Physics Chinese Academy of Sciences； Beijing Nuclear Instrument Factory；

【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.更多还原

【Abstract】 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.更多还原

【关键词】 THGEM； CsI； photocathode； UV；
【Key words】 THGEM； CsI； photocathode； UV；

【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

【文献出处】中国物理C ,Chinese Physics C , 编辑部邮箱 ,2011年04期

【分类号】O572.212
【被引频次】5
【下载频次】68

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