Abstract
A gas electron multiplier (GEM) detector with a gadolinium cathode has been developed to explore its potential application as a neutron detector. It consists of three standard-sized (10 × 10 cm2) GEM foils and a thin gadolinium plate as the cathode, which is used as a neutron converter. The neutron detection efficiencies were measured for two different cathode setups and for two different drift gaps. The thermal neutron source at the Korea Research Institute of Standards and Science (KRISS) was used to measure the neutron detection efficiency. Based on the neutron flux measured by KRISS, the neutron detection efficiency of our gadolinium GEM detector was 4.630 ± 0.034(stat.) ± 0.279(syst.)%.
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Acknowledgments
This work was supported by the 2018 Research Fund of the University of Seoul (Inkyu Park). Also, this research was supported by a National Research Foundation of Korea (NRF) grant funded by the Korea Government’s Ministry of Education, Science and Technology (MEST, 2017R1A2B4006644) (DongHyun Song, Sunyoung Yoo, Yechan Kang) and by the Basic Science Research Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Education (2018R1A6A1A06024977) (Kyungeon Choi). We also thank Dr. Jungho Kim of KRISS for his collaboration on the test beam.
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Song, D., Choi, K., Jeng, Y. et al. Neutron Detection Using a Gadolinium-Cathode Gas Electron Multiplier Detector. J. Korean Phys. Soc. 76, 961–966 (2020). https://doi.org/10.3938/jkps.76.961
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DOI: https://doi.org/10.3938/jkps.76.961