Initialising ...
Initialising ...
Initialising ...
Initialising ...
Initialising ...
Initialising ...
Initialising ...
Kawasaki, Masatsugu; Nakajima, Junya; Yoshida, Keisuke; Kato, Saori; Nishino, Sho; Nozaki, Teo; Nakagawa, Masahiro; Tsunoda, Junichi; Sugaya, Yuki; Hasegawa, Rie; et al.
JAEA-Data/Code 2017-004, 57 Pages, 2017/03
JAEA-Data-Code-2017-004.pdf:2.34MB
In emergency situation of nuclear facilities, we need to estimate the radiation dose due to radiation and radioactivity to grasp the influence range of the accident in the early stage. Therefore, we prepare the case studies of dose assessment for public exposure dose and personal exposure dose and contribute them to emergency procedures. This document covers about accidents of nuclear facilities in Nuclear Science Research Institute and past accident of nuclear power plant, and it can be used for inheritance of techniques of emergency dose assessment.
Watanabe, Norio
JAEA-Review 2014-031, 18 Pages, 2014/08
JAEA-Review-2014-031.pdf:4.92MB
It has been recognized an important means to learn lessons from operating experience and to feed them back to the design, construction, operation and management of facilities. A lot of events involved similar occurrences which have been experienced in the past. These are referred to as precursors. In the present study, identified and discussed are the precursors to the accident at Fukushima Daiichi Nuclear Power Plant to obtain the generic lessons which should have been learned. As precursors to the Fukushima accident, six events are identified: massive internal flooding and loss of safety systems; prolonged station blackout involving loss of control room and loss of residual heat removal; external flooding involving loss of safety systems and multi units site issue; loss of offsite power with one of two emergency diesel generators inoperable; tsunami-induced flooding; common-mode loss of instrument power. Furthermore, the most notable near-miss to the Fukushima accident is discussed.
Watanabe, Norio
JAEA-Review 2006-040, 60 Pages, 2007/02
JAEA-Review-2006-040.pdf:5.41MB
The Japan Atomic Energy Agency is carrying out the cooperative activity by providing specialized educational and training staff and making our facilities available for the graduate school of engineering in The University of Tokyo as part of developing human resources in nuclear technology. This report is prepared as a textbook for the lecture in the graduate school of engineering in The University of Tokyo and provides the outlines of activities on the analysis of nuclear and radiological events and analysis methods as well as the summaries of major incidents and accidents that occurred.
Watanabe, Norio
JAERI-Data/Code 2001-002, 129 Pages, 2001/03
JAERI-Data-Code-2001-002.pdf:6.65MB
no abstracts in English
Watanabe, Norio; ; Hirano, Masashi
JAERI-Data/Code 98-023, 488 Pages, 1998/09
JAERI-Data-Code-98-023.pdf:19.01MB
no abstracts in English
Matsumoto, Kiyoshi; *; Tanabe, Fumiya
JAERI-M 90-210, 222 Pages, 1990/11
no abstracts in English