Neutron Detection Using a Gadolinium-Cathode Gas Electron Multiplier Detector

Dong Hyun Song, Kyungeon Choi, Youngun Jeng, Yechan Kang, Jason Sang Hun Lee, Inkyu Park, Sunyoung Yoo

Research output: Contribution to journalArticlepeer-review

1 Scopus citations


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.)%.

Original languageEnglish
Pages (from-to)961-966
Number of pages6
JournalJournal of the Korean Physical Society
Issue number11
StatePublished - 1 Jun 2020


  • GEM
  • Gadolinium
  • Neutron
  • Particle detector


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