Sensitivity of a Gd-Coated Resistive Plate Chamber to Low-Energy Neutrons

Abstract
We present the design and the construction of a resistive plate chamber (RPC) with a Gd-coated electrode for the detection of low-energy neutrons. The signals were read out by using two perpendicular strip planes. The sensitivity of the RPC was tested by using the $^{252}$Cf source at the Korea Atomic Energy Research Institute. After the background had been properly subtracted, the neutron detection efficiency was determined to be about 3 \% and 2 \% for the backward and the forward scattered electron configurations, respectively, at an incident energy of about 75 meV.

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