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Journal Articles

The Prospective role of JAEA Nuclear Fuel Cycle Engineering Laboratories

Ojima, Hisao; Dojiri, Shigeru; Tanaka, Kazuhiko; Takeda, Seiichiro; Nomura, Shigeo

Proceedings of International Conference on Advanced Nuclear Fuel Cycles and Systems (Global 2007) (CD-ROM), p.273 - 282, 2007/09

The Nuclear Fuel Cycle Engineering Laboratories of Japan Atomic Energy Agency (JAEA) was established to take over activities of the Tokai Works of Japan Nuclear Cycle Development Institute (JNC). From 1959, several kinds of technologies (such as uranium refining, centrifuge for uranium enrichment, LWR spent fuel reprocessing and MOX fuel fabrication) have been accomplished. And also, R&Ds on the treatment and disposal of high level waste and the FBR fuel reprocessing have been carried out. Through such activities, control of environmental release of radioactive material and radiation exposure and management of nuclear materials have been done appropriately. The Laboratories will contribute to establish the closed cycle with R&Ds of the reprocessing technology during the transition period from LWR era to FBR era, improved MOX fuel fabrication technology, advanced FBR fuel reprocessing technology and high level waste disposal technology.

Journal Articles

Enhanced electrochemical oxidation of spent organic solvent under ultrasonic agitation

Sugikawa, Susumu; Umeda, Miki; Kobayashi, Fuyumi; Nagata, Masanobu*; Dojiri, Shigeru; Amano, Masae*

Proceedings of International Conference on Nuclear Energy System for Future Generation and Global Sustainability (GLOBAL 2005) (CD-ROM), 4 Pages, 2005/10

The mineralization of radioactive contaminated organic wastes by mediated electrochemical oxidation process has some attractive features as alternative to incineration process: The process operates safely at low temperatures and ambient pressures. JAERI has been investigated the process since 1996 and confirmed complete mineralization of this organic solvent. In order to greatly improve current efficiency for the oxidation reaction, further experiments were performed under condition of strong mixing of organic solvent and anolyte with an aide of ultrasonic wave. The current efficiencies for the oxidation reaction by ultrasonic agitation between organic solvent and anolyte were twice to that by mechanical agitation. On the basis of these results, two processes, one for destruction of a small amount of TBP/dodecane and the other for destruction of intermediate compounds following alkaline hydrolysis of a large amount of TBP/dodecane, were proposed.

Journal Articles

Research activities on advanced nuclear fuel cycle in NUCEF

Suzuki, Yasufumi; Dojiri, Shigeru; Ono, Akio; Maeda, Atsushi; Sugikawa, Susumu

Proceedings of International Conference on Back-End of the Fuel Cycle: From Research to Solutions (GLOBAL 2001) (CD-ROM), 7 Pages, 2001/09

no abstracts in English

JAEA Reports

Calibration of plutonium accountancy tanks at NUCEF critical facility; Calibration under tank ventilation

Mineo, Hideaki; Yanagisawa, Hiroshi; Tonoike, Kotaro; ; Hirose, Hideyuki; Murakami, Kiyonobu; *; Dojiri, Shigeru; Takeshita, Isao

JAERI-Tech 96-027, 209 Pages, 1996/06

JAERI-Tech-96-027.pdf:7.69MB

no abstracts in English

Journal Articles

Development of the vessel calibration data analysis program:VESCAL and its application to initial calibration data analyses at NUCEF

Yanagisawa, Hiroshi; Mineo, Hideaki; Dojiri, Shigeru; Takeshita, Isao

Dai-16-Kai Kaku Busshitsu Kanri Gakkai Nihon Shibu Nenji Taikai Rombunshu, 0, p.117 - 124, 1996/00

no abstracts in English

Journal Articles

An Approach for the reasonable TRU waste management in NUCEF

Mineo, Hideaki; Dojiri, Shigeru; Takeshita, Isao; Tsujino, Takeshi; ; Nishizawa, Ichio; Sugikawa, Susumu

Global 1995, Int. Conf. on Evaluation of Emerging Nuclear Fuel Cycle Systems,Vol. 1, 0, p.708 - 715, 1995/00

no abstracts in English

Journal Articles

Nearing completion of NUCEF construction; Present status and prospects of NUCEF project

Tsujino, Takeshi; Naito, Yoshitaka; Maeda, Mitsuru; ; Hoshi, Michio; Izawa, Naoki; Takeshita, Isao; ; Okazaki, Shuji; Dojiri, Shigeru

Genshiryoku Kogyo, 40(5), p.9 - 59, 1994/00

no abstracts in English

JAEA Reports

Electrolytic decontamination of transuranic waste by alternating electrolysis

Kozai, Naofumi; Dojiri, Shigeru; Moriyama, Noboru

JAERI-M 90-208, 15 Pages, 1990/11

JAERI-M-90-208.pdf:0.55MB

no abstracts in English

Journal Articles

Development of a partitioning method for the management of high-level liquid waste

Kubota, Masumitsu; Dojiri, Shigeru; Yamaguchi, Isoo; Morita, Yasuji; ; *; *

Proc. of the 1989 Joint Int. Waste Management Conf., Vol. 2, p.537 - 542, 1989/00

no abstracts in English

JAEA Reports

JAEA Reports

High hydrostatic pressure tests of the unsaturated polyester products

*; Dojiri, Shigeru; *; ; Okagawa, Seigo; Moriyama, Noboru

JAERI-M 88-027, 57 Pages, 1988/02

JAERI-M-88-027.pdf:5.02MB

no abstracts in English

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