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Tsujimoto, Kazufumi; Tazawa, Yujiro; Oigawa, Hiroyuki; Sasa, Toshinobu; Takano, Hideki
JAERI-Tech 2003-085, 158 Pages, 2003/11
JAERI-Tech-2003-085.pdf:7.79MB
A safety analysis was performed for the Transmutation Physics Experiment Facility which was to research and develop the reactor physics aspects of the nuclear transmutation technology using the accelerator driven subcritical system. Design policies were evaluated for design of each equipment and system which had important role from view point of safety. Classification of safety class for reactor building, system, and equipment was also reconsidered. Based on the results of safety design policy, acceptance criteria for safety evaluation were reestablished and preliminary analysis were performed. Public exposure by the accident for site appropriateness assessment was evaluated based on revised guidelines in safety evaluation contained in the 1990 Recommendations of ICRP. A recritical event was analyzed by utilizing the newest knowledge for core disruptive accident and calculation code as the beyond design basis accident. The analytical results showed that the isolation capability of the container buildings was ensured against the recritical accident.
Noguchi, Hiroshi; Yokoyama, Sumi*
KURRI-KR-80, p.50 - 56, 2002/08
no abstracts in English
Kobayashi, Hideo
Genshiryoku Nenkan 2001/2002-Nen Ban, p.103 - 105, 2001/11
no abstracts in English
Mizushita, Seiichi
Proc. of 20th JAIF-KAIF Seminar on Nuclear Industry, p.4.1.1 - 4.1.15, 1998/00
no abstracts in English
Nomura, Yasushi
JAERI-M 90-158, 53 Pages, 1990/09
no abstracts in English
Takahashi, Fumiaki
no journal, ,
The Japan Health Physics Society holds the 50th Annual Meeting by collaboration with Japanese Society of Radiation Safety Management. Educational Session is set for young researchers at the meeting. Public dose from natural radiation in Japan is one of the session topics. The radiation dose from natural background is announced to public following the accident at TEPCO Fukushima Dai-ichi NPP accident. Principal radiation sources are terrestrial radiation, cosmic radiation, radon and radioactivity in food. The levels of radiation dose and radioactivity are continuously investigated in Japan. As a conversion coefficient is applied to estimate effective dose from the radiation dose or radioactivity, the revise of conversion coefficient affects the result of public dose. In addition, a life-style is an influential factor on the radiation dose to public, too. Thus, the basic radiation dose and method to estimate radiation dose should be comprehended, if an expert explains the public dose.