Development of a Li-Coated RPC for Low-Energy Neutron Detection
J. Korean Phy. Soc. 2006; 48: 846~
Published online April 15, 2006 © 2006 The Korean Physical Society.

Abstract
In this report, we present a newly developed hybrid resistive plate chamber (RPC) for the detection of low-energy neutrons. Lithium-fluoride (LiF) enriched for the $^{6}$Li isotope was chosen as the material sensitive to low-energy neutrons for the construction of the hybrid RPC. The LiF-coated RPC was tested by using the $^{252}$Cf neutron-irradiation facility at the Korea Atomic Energy Research Institute (KAERI). The detection efficiency of the double-layered LiF-coated RPC to neutrons in the energy range from 10 to 560 meV was approximately 1.6 \%. We obtained reliable efficiency plateaus over a wide range of electric-field intensities.


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