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Shibata, Hiroshi; Takeuchi, Tomoaki; Seki, Misaki; Shibata, Akira; Nakamura, Jinichi; Ide, Hiroshi
JAEA-Data/Code 2021-018, 42 Pages, 2022/03
Japan Materials Testing Reactor (JMTR) in Oarai Research and Development Institute of the Japan Atomic Energy Agency has been developing various reactor materials, irradiation techniques and instruments for more than 30 years. Among them, the development of self-powered neutron detectors (SPNDs) and gamma detectors (SPGDs) has been carried out, and several research results have been reported. However, most of the results are based on the design study of the detector development and the results of in-core irradiation tests and gamma irradiation tests using Cobalt-60. In this report, a numerical code is developed based on the paper "Neutron and Gamma-Ray Effects on Self-Powered In-Core Radiation Detectors" written by H.D. Warren and N.H. Shah in 1974, in order to theoretically evaluate the self-powered radiation detectors.
Takeuchi, Tomoaki; Otsuka, Noriaki; Shibata, Hiroshi; Nagata, Hiroshi; Endo, Yasuichi; Matsui, Yoshinori; Tsuchiya, Kunihiko
KAERI/GP-418/2015, p.110 - 112, 2015/00
irradiation experiments with a Co source were carried out for developing Self-Powered Gamma Detectors (SPGDs) with lead (Pb) emitter and Self-Powered Neutron Detectors (SPNDs) with Pt-40%Rh emitter prior to in-core irradiation experiments. The results showed the output currents of the SPGDs were proportional to the dose rate in the range from about 200-6000 Gy/h with about 10% accuracy. In the case of SPNDs, the output currents flowed in inverse direction and were an order of magnitude lower compared with that of the SPGDs. These different behaviors of the output currents are considered to be caused by the difference in the emitter sizes and the current component originated at the MI cables.
Nakamichi, Masaru; *; Kawamura, Hiroshi; Sagawa, Hisashi; Nakazawa, Masaharu*
Fusion Technology 1996, 0, p.1591 - 1594, 1997/00
no abstracts in English
Sakasai, Kaoru; Kakuta, Tsunemi; ; Nakazawa, Masaharu*; *; Iguchi, Tetsuo*
IEEE Transactions on Nuclear Science, 43(3), p.1549 - 1553, 1996/06
Times Cited Count:7 Percentile:54.39(Engineering, Electrical & Electronic)no abstracts in English
Kawamura, Hiroshi; ; ; ;
JAERI-M 83-133, 27 Pages, 1983/08
no abstracts in English
; ; *
Hitachi Hyoron, 54(5), p.1 - 5, 1972/05
no abstracts in English
Ito, Chikara
no journal, ,
no abstracts in English