[2M10-12] Experimental Analysis

[2M12] Characterization of signals output from a proton-recoil proportional counter placed in UTR-KINKI

*HIROYUKI FUKUDA¹, TADAFUMI SANO¹, TAKASHI KANDA¹, MASAKI GOTO¹, SHOICHI IKEDA¹, YASUNORI MATSUO¹, KENGO HASHIMOTO¹ (1. Kindai Univ.)

Keywords:UTR-KINKI, detector characteristics, neutron-gamma discrimination, proton-recoil proportional counter, circuit noise

Neutron signals at five power levels from 1mW to 100mW by a proton-recoil proportional counter installed at the north stringer in UTR-KINKI were measured. In the experiment, pulse height and rise time distribution of the neutron signals by a MCA & MCS using a time-stamping function were measured. As a result, a peak signal at 1.5µs in the rise time distribution by gamma rays and the other peak at 2.2µs by neutrons were obtained. In the presentation, a comparison between the present results and ex-core experimental result reported in previous conference will be shown.