A study of thinner-THGEM, with some applications
A study of thinner-THGEM, with some applications
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DOI：
10.1088/1748-0221/7/06/c06001
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发表时间：
2012-01
影响因子：
1.3
通讯作者：
H. Liu;Q. Liu;S. Chen;C. Nicholson;Y. Xie;Y. Zheng;Z. Zheng;J. Lu;L. Zhou;A. Tang;Y. Yang;Y. Dong;M. Li
中科院分区：
文献类型：
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作者：
H. Liu;Q. Liu;S. Chen;C. Nicholson;Y. Xie;Y. Zheng;Z. Zheng;J. Lu;L. Zhou;A. Tang;Y. Yang;Y. Dong;M. Li
研究了不同厚度、不同孔径和不同孔距的厚气电子倍增器。对于厚度为0.2 mm、孔径为0.2 mm、节距为0.2 mm、边缘较窄(5-10µm)的较薄THGEM，用5.9keV X射线研究了不同混合气体对高电压增益的影响。通常，在Ar/IC(4)H(10)中，单板获得了约3×10(3)的增益，而在Ne混合物中，在较低的电压下，获得了大于10(4)的增益。测量了漂移电场和感应电场对能量分辨率的影响，获得了15.9%的能量分辨率。为用于北京同步辐射装置(BSRF)的衍射研究，已组装了一维读出的曲线型稀释室。基于Thinner-THGEM的宇宙射线Muon示波器是为中国科学院研究生院(GUCAS)研制的教学实验。
THGEMs (THick Gas Electron Multiplier) of varying thickness, hole diameter and hole pitch have been studied. For a thinner-THGEM of thickness 0.2 mm, with hole diameter 0.2 mm, pitch 0.2mm and narrow (5-10 mu m) rim, the performance of gain versus high voltage with different gas mixtures have been studied using 5.9 keV X-rays. In general, a gain of around 3 x 10(3) was obtained with a single board in Ar/iC(4)H(10), and gains higher than 10(4) were obtained in Ne mixture at lower voltage. The dependence of the energy resolution on the drift and induction electric fields was measured and an energy resolution of 15.9% was obtained. A curved thinner-THGEM chamber with one-dimensional readout has been assembled for use in the diffraction studies at the Beijing Synchrotron Radiation Facility (BSRF). A cosmic-ray muon hodoscope based on thinner-THGEM was developed as a teaching experiment for the Graduate University of the Chinese Academy of Sciences (GUCAS).