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KMID : 0364920050300010035
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Journal of Radiation Protection and Research
2005 Volume.30 No. 1 p.35 ~ p.37
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Design of a High Efficiency Neutron Detector Using a GEM
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Kim Yong-kyun
Park Se-Hwan
Kang Sang-Mook
Jung Jong-Eun
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Abstract
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The radiation detector research group at KAERI has developed a high efficiency neutron detector using a Gas Electron Multiplier (GEM). The double GEM was fabricated and operated in an Ar/Isobutane mixture. For an application to a high efficiency neutron detector, ^6Li;or;^{10}B neutron converters coated on each surface of the multi GEM foils were considered. The optimized thickness of the thin film for a neutron detection was calculated with the MCNP and SRIM. The neutron efficiency was calculated by changing the chemical components of the thin film, and the thickness of the thin film. The thermalized neutrons were measured by a GEM detector with a thin neutron converter on the drift plate.
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KEYWORD
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neutron detector, neutron measurement, $^6Li\, or\, ^{10}B$ neutron converter, GEM
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