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

YOU Wen-Hao; ZHOU Yi; LI Cheng; CHEN Hong-Fang; SHAO Ming; SUN Yong-Jie; TANG Ze-Bo; LIU Jian-Bei

doi:10.1088/1674-1137/39/4/046001

Chinese Physics C> 2015, Vol. 39> Issue(4) : 046001 DOI: 10.1088/1674-1137/39/4/046001

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

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Abstract：
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.

References

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YOU Wen-Hao, ZHOU Yi, LI Cheng, CHEN Hong-Fang, SHAO Ming, SUN Yong-Jie, TANG Ze-Bo and LIU Jian-Bei. A large-area GEM detector using a novel self-stretching technique[J]. Chinese Physics C, 2015, 39(4): 046001. doi: 10.1088/1674-1137/39/4/046001

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Received: 2014-05-09
Revised: 2014-09-25

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沈阳化工大学材料科学与工程学院沈阳 110142

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

Corresponding author: ZHOU Yi,

Received Date: 2014-05-09
Accepted Date: 2014-09-25
Available Online: 2015-04-05

Abstract: 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.