A large-area GEM detector using a novel self-stretching technique  

作　　者：尤文豪 周意 李澄 陈宏芳 邵明 孙勇杰 唐泽波 刘建北 

机构地区：[1]State Key Laboratory of Particle Detection and Electronics, University of Science and Technology of China

出　　处：《Chinese Physics C》2015年第4期51-54,共4页中国物理C（英文版）

基　　金：Supported by National Natural Science Foundation of China(11205151,11375180)

摘　　要：A Gas Electron Multiplier （GEM） detector with an effective area of 300 mm×300 mm has been constructed using a novel self-stretching technique, which allows a highly flexible and efficient GEM detector assembly free of glue or spacers. This makes the re-opening and repair of the GEM detectors possible and significantly reduces the scrap rate in the mass production of large-area GEM detectors. With the technique, the assembly time can be limited to a few hours, a factor of ten improvement compared to that using gluing techniques. The details of design and assembly procedure of the 300 mm×300 mm GEM detector are described in this paper. This detector was tested with 8 keV X-rays for the effective gain, energy resolution and performance uniformity. The results show that the typical energy resolution is 20% at an effective gain of about 10-4, with fairly good uniformity.A Gas Electron Multiplier （GEM） detector with an effective area of 300 mm×300 mm has been constructed using a novel self-stretching technique, which allows a highly flexible and efficient GEM detector assembly free of glue or spacers. This makes the re-opening and repair of the GEM detectors possible and significantly reduces the scrap rate in the mass production of large-area GEM detectors. With the technique, the assembly time can be limited to a few hours, a factor of ten improvement compared to that using gluing techniques. The details of design and assembly procedure of the 300 mm×300 mm GEM detector are described in this paper. This detector was tested with 8 keV X-rays for the effective gain, energy resolution and performance uniformity. The results show that the typical energy resolution is 20% at an effective gain of about 10-4, with fairly good uniformity.

关 键 词：GEM self-stretching effective gas gain energy resolution UNIFORMITY 

分 类 号：O572.212[理学—粒子物理与原子核物理]