DOI QR코드

DOI QR Code

A novel ceramic GEM used for neutron detection

  • Zhou, Jianrong (School of Nuclear Science and Technology, Lanzhou University) ;
  • Zhou, Xiaojuan (Spallation Neutron Source Science Center) ;
  • Zhou, Jianjin (School of Nuclear Science and Technology, Lanzhou University) ;
  • Jiang, Xingfen (Spallation Neutron Source Science Center) ;
  • Yang, Jianqing (Spallation Neutron Source Science Center) ;
  • Zhu, Lin (Spallation Neutron Source Science Center) ;
  • Yang, Wenqin (Spallation Neutron Source Science Center) ;
  • Yang, Tao (Spallation Neutron Source Science Center) ;
  • Xu, Hong (Spallation Neutron Source Science Center) ;
  • Xia, Yuanguang (Spallation Neutron Source Science Center) ;
  • Yang, Gui-an (Spallation Neutron Source Science Center) ;
  • Xie, Yuguang (Spallation Neutron Source Science Center) ;
  • Huang, Chaoqiang (Institute of Nuclear Physics and Chemistry, China Academy of Engineering Physics) ;
  • Hu, Bitao (School of Nuclear Science and Technology, Lanzhou University) ;
  • Sun, Zhijia (Spallation Neutron Source Science Center) ;
  • Chen, Yuanbo (Spallation Neutron Source Science Center)
  • 투고 : 2019.10.30
  • 심사 : 2019.11.20
  • 발행 : 2020.06.25

초록

A novel ceramic Gas Electron Multiplier (GEM) has been developed to meet the demand of high counting rate for the neutron detection which is an alternative to 3He-based detector at China Spallation Neutron Source (CSNS). An experiment was performed to measure the neutron transmittance of ceramic-GEM and FR4-GEM at the small angle neutron scattering (SANS) instrument. The result showed the ceramic-GEM has higher transmittance and less self-scattering especially for cold neutrons. One single ceramic GEM could give a gain of 102-104 in the mixture gas of Ar and CO2 (90%:10%) and its energy resolution was about 27.7% by using 55Fe X ray of 5.9 keV. A prototype has been developed in order to investigate the performances of the ceramic GEM-based neutron detector. Several neutron beam tests, including detection efficiency, spatial resolution, two-dimensional imaging, and wavelength spectrum, were carried out at CSNS and China Mianyang Research Reactor (CMRR). The results show that the ceramic GEM-based neutron detector is a good candidate to measure the high intensity neutrons.

키워드

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피인용 문헌

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  3. Physical design of an Atmospheric Neutron Irradiation Spectrometer at China Spallation Neutron Source vol.386, 2022, https://doi.org/10.1016/j.nucengdes.2021.111579
  4. A sealed ceramic GEM neutron detector with the mixture gas Ne/CO 2 vol.1024, 2020, https://doi.org/10.1016/j.nima.2021.166076