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Published on: May 2, 2018
Energy and angular dependence of active-type personal dosemeter for high-energy neutron
Hirotaka Rito1, Tomoya Yamauchi, Keiji Oda
1Graduate School of Maritime Sciences, Kobe University, 5-1-1 Fukae-minamimachi, Higashinada-ku, Kobe 658-0022, Japan. hirotaka.rito@gmail.com
Abstract:
In order to develop an active-type personal dosemeter having suitable sensitivity to high-energy neutrons, the characteristic response of silicon surface barrier detector has been investigated experimentally and theoretically. An agreement of the shape of pulse-height distribution, its change with radiator thickness and the relative sensitivity was confirmed between the calculated and experimental results for 14.8-MeV neutrons. The angular dependence was estimated for other neutron energies, and found that the angular dependence decreased with the incident energy. The reason was also discussed with regard to the radiator thickness relative to maximum range of recoil protons.
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