The gas gain and energy resolution of single and double THGEM detectors (5{\times}5cm2 effective area) with mini-rims (rim is less than 10{\mu}m) were studied. The maximum gain can reach 5{\times}103 and 2{\times}105 for single and double THGEM respectively, while the energy resolution of 5.9 keV X-ray varied from 18% to 28% for both single and double THGEM detectors of different hole sizes and thicknesses.All the experiments were investigated in mixture of noble gases(argon,neon) and small content of other gases(iso-butane,methane) at atmospheric pressure.
@article{arxiv.1105.1757,
title = {Experimental study of THGEM detector with mini-rim},
author = {Ai-Wu Zhang and Bo-Xiang Yu and Yu-Guang Xie and Hong-Bang Liu and Zheng-Hua An and Zhi-Gang Wang and Xiao Cai and Xi-Lei Sun and Feng Shi and Jian Fang and Zhen Xue and Qi-Wen Lu and Li-Jun Sun and Yong-Shuai Ge and Ying-Biao Liu and Tao Hu and Li Zhou and Jun-Guang Lu},
journal= {arXiv preprint arXiv:1105.1757},
year = {2015}
}
Comments
4pages,6figures, it has been submitted to Chinese Physics C