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Shinoda, Yoshihiko; Tsuchida, Shoji*; Kimura, Hiroshi*
Nihon Genshiryoku Gakkai Wabun Rombunshi, 13(3), p.94 - 112, 2014/09
Fukushima Daiichi Nuclear Power Plant accident (Fukushima accident) has brought about a great change in many people's perceptions about nuclear power plant safety. When discussing future energy options for Japan, it is important to have a full grasp of the attitude of a large number of people towards nuclear energy. The Atomic Energy Society of Japan has conducted annual questionnaire survey of 500 adults who live within 30 kilometers of Tokyo Station. The aim of this survey is to assess trends in public attitude towards nuclear energy. The authors that designed the questionnaire entries of this survey have been managing questionnaire data as members of the Data Management Working Group under the Social and Environmental Division of the Atomic Energy Society of Japan. We confirmed the change in public attitude towards nuclear energy through this periodical survey after the Fukushima accident. In particular, public concerns about the use of nuclear energy increased after the Fukushima accident, and many people have raised doubts over the use of nuclear energy in the future.
Shibata, Takanori; Koga, Shojiro*; Terasaki, Ryo*; Inoue, Takashi; Dairaku, Masayuki; Kashiwagi, Mieko; Taniguchi, Masaki; Tobari, Hiroyuki; Tsuchida, Kazuki; Umeda, Naotaka; et al.
Review of Scientific Instruments, 83(2), p.02A719_1 - 02A719_3, 2012/02
Times Cited Count：2 Percentile：12.31(Instruments & Instrumentation)In the NBI for large fusion devices, production of uniform negative ion beam is one of important issues. A physical model is proposed to understand the non-uniformity. It has been qualitatively shown that the non-uniform beam intensity is due to the following process; (1) formation of non-uniform EEDF, (2) localized production of hydrogen atoms/ions (H
/H
) due to (1), (3) non-uniform flux of H/H to the PG and (4) localized surface production of negative ions. However, in the past studies, the EEDF was assumed as two temperature Maxwellian distribution from measurements. Thus effects of high energy electrons are not taken into account precisely. In the present research, local EEDF is calculated by the 3D Monte-Carlo kinetic model which takes into account the spatial and magnetic configurations of the real negative ion source. The numerical result show that high energy component of the EEDF enhances the spatial non-uniformity in the production rate of H/H.
Yasuda, Hiroshi*; Saito, Tatsuo; Fumoto, Hiromichi*; Kasai, Atsushi*; Shimo, Michikuni*; Sugawara, Shinetsu*; Tsuchida, Shoji*; Furuta, Sadaaki*
no journal, ,
Contaminated with naturally occurring radionuclides uranium and its progeny nuclides, "uranium bearing wastes" have very long half-life to decay its radioactivity, which can be hundreds of thousands of years, and have risk to impose a considerable burden on future generations. Based on this, the authors considered that it is important to consider not only from the viewpoint of science and engineering as has been done so far, but also from the viewpoint of humanities and social sciences such as philosophy and history. Therefore, in 2020, the Health Physics Society of Japan established the "the Expert Panel on Management of NORM-Containing Wastes Investigated through the Perspective of Humanities and Social Sciences, and related fields". In this session, we will report on the history and future outlook of our activities so far.
Tekeda, Norito*; Tsuchida, Shoji*; Kuwafaki, Reiko*; Matsunaga, Yoko*; Horikoshi, Hidehiko*; Sata, Tsutomu
no journal, ,
We create a framework for evaluating risk communication based on evaluation indicators and evaluation methods that make use of the characteristics of risk communication such as collaboration and consensus building, and start a research project to consider methods for concrete social implementation. Therefore, I would like to give an overview of it.
