[2H11-14] Detector Development 2

[2H14] n/gamma Pulse Shape Discrimination of Li loaded liquid scintillator for reactor neutrino monitor

*Atsuya Kawabata¹, Kyohei Nakajima¹, Yoichi Tamagawa¹ (1. University of Fukui)

Keywords:radiation measurement, radiation physics, neutrino, reactor neutrino monitor

A reactor neutrino monitor has been developed to monitor the operating status for reactors and the U/Pu ratio of the fuel by observing electron anti-neutrinos from the reactor. Neutrinos are detected by a pair of positron and neutron from inverse beta decay. Li-6 captures neutron,and emits alpha ray and tritium. Therefore, Li-6 is useful to detect neutron. The reactor neutrino events can be efficiently detected using this reaction. We developed Li-loaded liquid scintillators which have the ability of pulse shape discrimination. The sample of the Li-loaded liquid scintillator were irradiated with neutrons from a Cf-252 source. We will report the result of the pulse shape discrimination ability of the developing Li-loaded liquid scintillator.