Performances of RETGEM with resistive electrodes made of kapton foils  

作　　者：俞伯祥 刘宏邦 谢一冈 章爱武 唐爱松 杨亚聃 董洋 李敏 王志刚 谢宇广 蔡啸 周莉 胡涛 吕军光 

机构地区：[1]Institute of High Energy Physics, Chinese Academy of Sciences [2]Graduate University of Chinese Academy of Sciences [3]Second Academy of China Aerospace Science and Industry CORP

出　　处：《Chinese Physics C》2011年第12期1120-1123,共4页中国物理C（英文版）

基　　金：Support by Youth Found of Institute of High Energy Physics,Chinese Academy of Sciences

摘　　要：THGEM with resistive Kapton electrodes （RETGEM） has been developed to make the THGEM more tolerant to discharges. At higher gains with resistive electrodes, serious discharges may travel to the streamer mode, in contrast to violent sparks in conventional GEMs. These streamers are mild and less dan- gerous to the detector and the front-end electronics. RETGEM looks very promising, and its basic properties are being studied. Recently we developed and tested the THGEM with electrodes using 20 um thick resistive kapton foils. The new RETGEM performs at a lower discharge current, has a lower discharge probability, and has a good energy resolution of 27% and a high effective gas gain and long-term stability.THGEM with resistive Kapton electrodes （RETGEM） has been developed to make the THGEM more tolerant to discharges. At higher gains with resistive electrodes, serious discharges may travel to the streamer mode, in contrast to violent sparks in conventional GEMs. These streamers are mild and less dan- gerous to the detector and the front-end electronics. RETGEM looks very promising, and its basic properties are being studied. Recently we developed and tested the THGEM with electrodes using 20 um thick resistive kapton foils. The new RETGEM performs at a lower discharge current, has a lower discharge probability, and has a good energy resolution of 27% and a high effective gas gain and long-term stability.

关 键 词：RETGEM resistive electrodes Kapton foil GEM 

分 类 号：O572.212[理学—粒子物理与原子核物理]