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Asazuma, Shinichiro
Hozengaku, 11(4), p.13 - 17, 2013/01
no abstracts in English
Okada, Takashi; Asazuma, Shinichiro; Kashiro, Kashio; Matsumoto, Masaki
CD-ROM, WM-5214, p.8, 8 Pages, 2005/00
The dismantling activities, which consist of removal of the glove panel, dismantling of the interior equipment and dismantling of the GB body and made up about 45% of the dismantling of the GB in GBDF, could be performed by remote control.
Asazuma, Shinichiro; Takeda, Shinso; Toshihiko, Ohnishi,; Soma, Susumu; Onose, Ken ; Shoichi, Tajima,; Okada, Takashi
JNC TN8420 2004-001, 122 Pages, 2004/11
JNC-TN8420-2004-001.pdf:167.0MB
In order to prevent spread of contamination, glovebox dismantling activity is usually performed in a confined enclosure with personal radioactive protective equipment. Since large potion of these materials is made of vinyl acetate, there exist potential risks of fire, damage and injury to the environment and workers during the dismantling (cutting or melting) operation. It is therefore important to establish standard for proper use of equipment and hazard controls in such a specific environment. Working Group composed of Tokai Works and O-arai Works has examined and developed the operational standard for cutting work in glovebox dismantlement. The result is reflected to the Tokai Works Safety Operational Standard.
Asazuma, Shinichiro; Okada, Takashi; Kashiro, Kashio; Matsumoto, Masaki; Nakata, Keiji*; Gonnokami, Kiyomi*; Toda, Rikiya*
JNC TN8430 2003-011, 56 Pages, 2004/01
JNC-TN8430-2003-011.pdf:2.07MB
The glove-box dismantling facility in the Plutonium Fuel Production Facility is developed to dismantle after-service glove-boxes with remote-controlled devices such as an arm-type manipulator. An abrasive wheel cutter, which is used to size reduce the gloveboxes, generates sparks during operation. This dispersing spark was a problem from the fire prevention point of view. A suitable spark control measures for this operation were required. We developed panels to minimize spark dispersion, shields to prevent the income of sparks to the pre-filter, and incombustible pre-filters. The equipment was tested and effectiveness was confirmed. This report provides the results of these tests.
Kitamura, Akihiro; Okada, Takashi; Asazuma, Shinichiro; Uematsu, Shinichi; Ishibashi, Takashi
Proceedings of 12th International Conference on Nuclear Engineering (ICONE-12) (CD-ROM), 6 Pages, 2004/00
The gloveboxes and process equipment used at plutonium fuel handling facilities had to bereplaced due to deterioration or change of object.
Matsumoto, Kenichi*; Miyahara, Kenji; ; Asazuma, Shinichiro; Fukushima, Isao; Shoji, Kenji; Nojima, Yasuo; Kimura; Ikeda; Shibuya, Jun*; et al.
PNC TN8440 87-194, 82 Pages, 1987/08
no abstracts in English
Nakamichi, Shinya; Kitamura, Akihiro; Yanagawa, Chihiro; Nakai, Koji; Okada, Takashi; Asazuma, Shinichiro; Kashiro, Kashio
no journal, ,
no abstracts in English
Abe, Hironobu; Ikeda, Koki; Mikake, Shinichiro; Nagasaki, Yasushi; Niizato, Tadafumi; Asazuma, Shinichiro; Aoki, Isao; Ishikawa, Nobuyuki; Ishikawa, Hiroyasu; Ishizaki, Nobuhiro; et al.
no journal, ,
no abstracts in English
Sudo, Tomoyuki; Ishikawa, Hiroyasu; Uesaka, Takahiro*; Sonoda, Takashi; Ishikawa, Nobuyuki*; Niizato, Tadafumi; Mikake, Shinichiro; Aoki, Isao; Ishizaki, Nobuhiro; Imamura, Hiroaki; et al.
no journal, ,
JAEA is working the decontamination activity for the environmental remediation of Fukushima. In this activity, I support the decontamination activity for local governments to devise a decontamination plan and actually decontaminate. In this report, 1 introduce the technical knowhow for the decontamination activity of a house.
Hata, Katsuro; Ishikawa, Nobuyuki; Uesaka, Takahiro; Sudo, Tomoyuki; Matsumoto, Masaki; Aoki, Isao; Ishizaki, Nobuhiro; Imamura, Hiroaki; Uchida, Shinichi; Kikuchi, Sakae; et al.
no journal, ,
JAEA supports the decontamination activity that the local government of Fukushima carries out. In addition, JAEA carries out instruction and the advice about decontamination. I explain the concrete-based decontamination method of the house which polluted by the accident of the nuclear power plant.
Sumiya, Masato; Ikeda, Koki; Sonoda, Takashi; Niizato, Tadafumi; Mikake, Shinichiro; Abe, Hironobu; Inoue, Makoto; Eguchi, Kazutoshi; Kozawa, Masachiyo; Terunuma, Akihiro; et al.
no journal, ,
no abstracts in English
Aoki, Isao; Asazuma, Shinichiro; Sudo, Tomoyuki; Komiya, Tomokazu; Nakamura, Masahiko; Uchida, Shinichi; Kozawa, Masachiyo; Sonoda, Takashi; Mikake, Shinichiro; Ikeda, Koki; et al.
no journal, ,
JAEAs technical experiences and lessons learned for environmental remediationof Fukushima. (Technical supports for local governments)
Kanazawa, Shingo; Sudo, Tomoyuki; Komiya, Tomokazu; Hata, Katsuro; Nakamura, Masahiko; Kozawa, Masachiyo; Ohata, Kiyoshi; Nanko, Masayuki; Hoshino, Masato; Uchida, Shinichi; et al.
no journal, ,
JAEA is working the decontamination activity for the environmental remediation of Fukushima. In this activity, we support the decontamination activity for local governments to devise actually decontaminate. In this report, we show the decontamination effect of a house.
Niizato, Tadafumi; Aoki, Isao; Asazuma, Shinichiro
no journal, ,
This paper presents current status on the JAEA's study of the dynamic behavior of radiocaesium in the Fukushima environment and technical know-how on the decontamination work.
Asazuma, Shinichiro
no journal, ,
no abstracts in English
Mitsui, Seiichiro; Sekiyama, Tomio; Kato, Mitsugu; Asazuma, Shinichiro; Kato, Hiroyasu*; Ueta, Shinzo*
no journal, ,
A huge volume of contaminated soils and wastes has been generated by off-site decontamination works in Fukushima and has been stored at temporary storage sites located near or at decontamination sites. The soils and wastes will be sequentially transferred to the Interim Storage Facility (ISF). According to a relevant law, the soils and wastes will be disposed at a final disposal site outside Fukushima within the next 30 years. The total volume of the contaminated soils which will be stored in the ISF is estimated to be up to 20 million cubic meters, thus reduction of its final disposal volume is vital to minimize various impacts of final disposal. In order to optimize final disposal outside Fukushima, the government will commence research and development on soil treatment techniques and use application of less-contaminated soil. As the one and only institution dedicated to the comprehensive R&D of nuclear energy-related technology in Japan, we will support the government efforts.
Umezawa, Katsuhiro; Haginoya, Masashi; Kato, Mitsugu; Asazuma, Shinichiro
no journal, ,
no abstracts in English
Umezawa, Katsuhiro; Haginoya, Masashi; Kato, Mitsugu; Asazuma, Shinichiro
no journal, ,
no abstracts in English
Terunuma, Hirotaka; Tanaka, Kiwamu; Kabumoto, Hiroshi; Haginoya, Masashi; Sano, Naruto; Takahashi, Masatomi; Hoshino, Masato; Aoki, Isao; Asazuma, Shinichiro
no journal, ,
no abstracts in English
