A sealed ceramic GEM-based neutron detector
| Autor: | Jianrong Zhou, Lin Zhu, Yuguang Xie, Jianjin Zhou, Beiju Guan, Xiao-guang Wu, Jianqing Yang, Yi Zhang, Xu Hong, Kang Wei, Yuanbo Chen, Huiyin Wu, Baowei Ding, Zhijia Sun, Yangdong Wei, Bitao Hu, Xiaojuan Zhou, Li-Min Duan, Gui-An Yang, Xiao-hu Wang |
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| Rok vydání: | 2020 |
| Předmět: |
Nuclear and High Energy Physics
Physics - Instrumentation and Detectors Physics::Instrumentation and Detectors Astrophysics::High Energy Astrophysical Phenomena FOS: Physical sciences 01 natural sciences Optics 0103 physical sciences Neutron detection Ceramic 010306 general physics Nuclear Experiment Instrumentation Image resolution Physics Atmospheric pressure 010308 nuclear & particles physics business.industry Detector Instrumentation and Detectors (physics.ins-det) Neutron radiation Full width at half maximum visual_art visual_art.visual_art_medium High Energy Physics::Experiment business Spallation Neutron Source |
| DOI: | 10.48550/arxiv.2009.08649 |
| Popis: | The GEM-based neutron detector has flourished in the past decade. However, most of the GEM-based neutron detectors operate in the flow-gas mode, and the long-term performances of the detectors may be unstable due to the dynamic changes of atmospheric pressure and ambient temperature. In this work, a sealed ceramic GEM-based neutron detector with 100 mm × 100 mm sensitive area was developed at China Spallation Neutron Source (CSNS). Various characteristics of the detector were determined. These included the plateau curve, neutron beam profile, neutron wavelength spectrum, spatial resolution (FWHM: 2.77 ± 0.01(stat) mm), two-dimensional (2D) imaging ability, neutron detection efficiency and long-term counting rate instability (Relative Standard Deviation (RSD): 0.80%). The results revealed the good performance of the detector in sealed mode. Furthermore, the detector can be used for measurements of the direct neutron beam at CSNS. |
| Databáze: | OpenAIRE |
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