Gas electron multiplier(GEM) detector is used in Cosmic Muon Scattering Tomography and neutron imaging in the last decade. In this work, a triple GEM device with an effective readout area of 10 cm X 10 cm is developed, and an experiment of discriminating between cosmic muon and x-ray based on rising time is tested. The energy resolution of GEM detector is tested by 55Fe ray source to prove the GEM detector has a good performance. The analysis of the complete signal-cycles allows to get the rising time and pulse heights. The experiment result indicates that cosmic muon and x-ray can be discriminated with an appropriate rising time threshold.
@article{arxiv.1512.01787,
title = {Discriminating cosmic muon and x-ray based on rising time using GEM detector},
author = {Wu Hui-Yin and Zhao Sheng-Ying and Wang Xiao-Dong and Zhang Xian-Ming and Qi Hui-Rong and Zhang Wei and Wu Ke-Yan and Hu Bi-Tao and Zhang Yi},
journal= {arXiv preprint arXiv:1512.01787},
year = {2016}
}