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Chinese Physics C> 2016, Vol. 40> Issue(8) : 086001 DOI: 10.1088/1674-1137/40/8/086001

Discriminating cosmic muons and X-rays based on rise time using a GEM detector

  • 1.

      School of Nuclear Science and Technology, Lanzhou University, Lanzhou 730000, China

  • 2.

      School of Nuclear Science and Technology, University of South China, Hengyang 421001, China

  • 3.

      State Key Laboratory of Particle Detection and Electronics, Beijing 100049, China

  • Gas electron multiplier (GEM) detectors have been used in cosmic muon scattering tomography and neutron imaging over the last decade. In this work, a triple GEM device with an effective readout area of 10 cm × 10 cm is developed, and a method of discriminating between cosmic muons and X-rays based on rise time is tested. The energy resolution of the GEM detector is tested by 55Fe ray source to prove the GEM detector has a good performance. Analysis of the complete signal-cycles allows us to get the rise time and pulse heights. The experiment result indicates that cosmic muons and X-rays can be discriminated with an appropriate rise time threshold.
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  • References

    [1] A. Bressan et al, Nucl. Instrum. Methods A, 425: 254-261 (1999)
    [2] F. Sauli, Nucl. Instrum. Methods A, 386: 531-534 (1997)
    [3] K. Gnanvo et al, IEEE NSS/MIC: 552-559 (2010)
    [4] H. Ohshita et al, Nucl. Instrum. Methods A, 623: 126-128 (2010)
    [5] X. D. Wang et al, Chin. Phys. C, 39(2): 026001 (2015)
    [6] G. Croc et al, Nucl. Instrum. Methods A, 712: 108-112 (2013)
    [7] M. Raymond et al, IEEE NSS/MIC, 2(9): 113-118 (2000)

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Hui-Yin Wu, Sheng-Ying Zhao, Xiao-Dong Wang, Xian-Ming Zhang, Hui-Rong Qi, Wei Zhang, Ke-Yan Wu, Bi-Tao Hu and Yi Zhang. Discriminating cosmic muons and X-rays based on rise time using a GEM detector[J]. Chinese Physics C, 2016, 40(8): 086001. doi: 10.1088/1674-1137/40/8/086001
Hui-Yin Wu, Sheng-Ying Zhao, Xiao-Dong Wang, Xian-Ming Zhang, Hui-Rong Qi, Wei Zhang, Ke-Yan Wu, Bi-Tao Hu and Yi Zhang. Discriminating cosmic muons and X-rays based on rise time using a GEM detector[J]. Chinese Physics C, 2016, 40(8): 086001.  doi: 10.1088/1674-1137/40/8/086001 shu
Milestone
Received: 2015-12-08
Revised: 2016-01-28
Fund

    Supported by National Natural Science Foundation of China (11135002, 11275235, 11405077, 11575073)

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Discriminating cosmic muons and X-rays based on rise time using a GEM detector

    Corresponding author: Yi Zhang,
  • 1.  School of Nuclear Science and Technology, Lanzhou University, Lanzhou 730000, China
  • 2.  School of Nuclear Science and Technology, University of South China, Hengyang 421001, China
  • 3.  State Key Laboratory of Particle Detection and Electronics, Beijing 100049, China
  • Received Date: 2015-12-08
  • Accepted Date: 2016-01-28
  • Available Online: 2016-08-05
Fund Project:  Supported by National Natural Science Foundation of China (11135002, 11275235, 11405077, 11575073)

Abstract: Gas electron multiplier (GEM) detectors have been used in cosmic muon scattering tomography and neutron imaging over the last decade. In this work, a triple GEM device with an effective readout area of 10 cm × 10 cm is developed, and a method of discriminating between cosmic muons and X-rays based on rise time is tested. The energy resolution of the GEM detector is tested by 55Fe ray source to prove the GEM detector has a good performance. Analysis of the complete signal-cycles allows us to get the rise time and pulse heights. The experiment result indicates that cosmic muons and X-rays can be discriminated with an appropriate rise time threshold.

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