Experimental study of a THGEM detector with mini-rims

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ZHANG Ai-Wu, YU Bo-Xiang, XIE Yu-Guang, LIU Hong-Bang, AN Zheng-Hua, WANG Zhi-Gang, CAI Xiao, SUN Xi-Lei, SHI Feng, FANG Jian, XUE Zhen, SUN Li-Jun, GE Yong-Shuai, LIU Ying-Biao, HU Tao, ZHOU Li, Experimental study of a THGEM detector with mini-rims[J]. Chinese Physics C, 2012, 36(2): 142-145. doi: 10.1088/1674-1137/36/2/007
ZHANG Ai-Wu, YU Bo-Xiang, XIE Yu-Guang, LIU Hong-Bang, AN Zheng-Hua, WANG Zhi-Gang, CAI Xiao, SUN Xi-Lei, SHI Feng, FANG Jian, XUE Zhen, SUN Li-Jun, GE Yong-Shuai, LIU Ying-Biao, HU Tao, ZHOU Li, Experimental study of a THGEM detector with mini-rims[J]. Chinese Physics C, 2012, 36(2): 142-145.  doi: 10.1088/1674-1137/36/2/007 shu
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Received: 2011-05-06
Revised: 2011-06-22
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Experimental study of a THGEM detector with mini-rims

    Corresponding author: YU Bo-Xiang,

Abstract: The gas gain and energy resolution of single and double THGEM detectors (5 cm×5 cm effective area) with mini-rims (rim less than 10 μm) were studied. The maximum gain was found to reach 5×103 and 2×105 for single and double THGEMs respectively, while the energy resolution for 5.9 keV X-rays varied from 18% to 28% for both single and double THGEM detectors of different hole sizes and thicknesses. Different combinations were also investigated of noble gases (argon, neon) mixed with a quantity of other gases (isobutane, methane) at atmospheric pressure.

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