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Sakauchi, Hitoshi; Kikuchi, Yuki; Imaizumi, Haruki; Fukui, Yasutaka
Dekomisshoningu Giho, (57), p.34 - 42, 2018/03
OWTF (Oarai Waste Reduction Treatment Facility) is constructed for volume reduction processing and stabilization treatment of radioactive solid waste, which generate from hot facilities in Oarai Research and Development Center of Japan Atomic Energy Agency, using in-can type high frequency induction heating by remote control. In this report, we describe the outline of OWTF under construction and treatment technologies, in which incinerating and melting.
Nakano, Masahiro; Okawa, Hiroshi; Suzuki, Takeshi; Kishimoto, Katsumi; Terunuma, Akihiro; Yano, Masaaki
Dekomisshoningu Giho, (30), p.11 - 24, 2004/09
Japan Research Reactor No.2(JRR-2), heavy water moderated and cooled tank type research reactor with maximum thermal power of 10MW,was operated for over 36 years, and was permanently shut down in December, 1996. In 1997, decommissioning plan was submitted to the STA, and dismantling was begun. Decommissioning program of JRR-2 is divided into 4 phases. Phase 1, 2 had already been completely finished without any trouble. Furthermore, the phase 3 was also finished in February, 2004 as planned. On exposure of worker in phase 1, 2 and 3, it was achieved to control lower than the estimate. On exposure of worker in phase 1, 2 and 3, it was achieved to control lower than the estimate. Reactor will be removed in phase 4 by one piece removal technique. The reactor building is planned to use effectively as a hot experimental facilities after decommissioning. The decommissioning plan was changed that the reactor would be kept in safety storage.
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JNC TJ8420 2000-010, 171 Pages, 2000/03
JNC-TJ8420-2000-010.pdf:5.34MB
no abstracts in English
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Hoken Butsuri, 9(2), p.81 - 86, 1974/02
no abstracts in English
Ito, Satoshi; Sano, Kyohei; Tameta, Yuito; Akiyama, Kazuki
no journal, ,
The High Active Solid Waste store HASWS of Tokai Reprocessing Plant. HASWS don't have a equipment to retrieve the High Active Solid Waste. Therefore, I examined the Using remotely machine at decommissioning of domestic and international. In the technical investigation, I investigated the machine and others which could perform work of (1)-(3). (1) Cutting work of the wire attached to Hull Can. (2) Moving work of Hull Can. (3) Attach the hoisting accessory work of Hull Can. I compared the extracting machine and others. As a result, I chosed the Remotely operated Vehicle And underwater buoyancy.
