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HE Zhan-Ying, ZHOU Jian-Rong, SUN Zhi-Jia, YANG Gui-An, XU Hong, WANG Yan-Feng, LIU Qian, LIU Hong-Bang, CHEN Shi, XIE Yi-Gang, ZHENG Yang-Heng, WANG Xiao-Dong, ZHANG Xiao-Dong, HU Bi-Tao and CHEN Yuan-Bo. Experimental studies of THGEM in different Ar/CO2 mixtures[J]. Chinese Physics C, 2014, 38(5): 056003. doi: 10.1088/1674-1137/38/5/056003
HE Zhan-Ying, ZHOU Jian-Rong, SUN Zhi-Jia, YANG Gui-An, XU Hong, WANG Yan-Feng, LIU Qian, LIU Hong-Bang, CHEN Shi, XIE Yi-Gang, ZHENG Yang-Heng, WANG Xiao-Dong, ZHANG Xiao-Dong, HU Bi-Tao and CHEN Yuan-Bo. Experimental studies of THGEM in different Ar/CO2 mixtures[J]. Chinese Physics C, 2014, 38(5): 056003.  doi: 10.1088/1674-1137/38/5/056003 shu
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Received: 2013-06-21
Revised: 1900-01-01
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Experimental studies of THGEM in different Ar/CO2 mixtures

    Corresponding author: ZHOU Jian-Rong,

Abstract: In this paper, the performance of a type of domestic THGEM (THick Gaseous Electron Multiplier) working in Ar/CO2 mixtures is reported in detail. This kind of single THGEM can provide a gain range from 100 to 1000, which is very suitable for application in neutron detection. In order to study its basic characteristics as a reference for the development of a THGEM based neutron detector, the counting rate plateau, the energy resolution and the gain of the THGEM have been measured in different Ar/CO2 mixtures with a variety of electrical fields. For the Ar/CO2(90%/10%) gas mixture, a wide counting rate plateau is achieved from 720 V to 770 V, with a plateau slope of 2.4%/100 V, and an excellent energy resolution of about 22% is obtained at the 5.9 keV full energy peak of the 55Fe X-ray source.

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