Japan nuclear research

The SETFICS process (Solvent Extraction for Trivalent /-elements Intragroup Separation in CMPO-Complexant System) was initially proposed by research teams of the former Japan Nuclear Cycle Development Institute (JNC, today JAEA) to separate An(III) from PUREX raffinates. It uses a TRUEX solvent (composed of CMPO and TBP, respectively dissolved at 0.2 and 1.2 M in -dodecane) to coextract trivalent actinides and lanthanides, and a sodium nitrate concentrated solution (4 M NaN03) containing DTPA (0.05 M) to selectively strip the TPEs at pH 2 and keep the Ln(III) extracted by the TRUEX solvent (239). However, the DFs for heavy Ln(III) are rather poor. An optimized version of the SETFICS process has recently been proposed as an alternative process to extraction chromatography for the recovery of Am(III) and Cm(III) in the New Extraction System for TRU Recovery (NEXT) process. NEXT basically consists of a front-end crystallization of uranium, a simplified PUREX process using TBP for the recovery of U, Np, and Pu, and a back-end Am(III) + Cm(III) recovery step (240, 241). 

Department of Experimental Physics, Lajos Kossuth University, Debrecen, Bern ter 18/a, Hungary Institute of Nuclear Research of Hungarian Academy of Sciences H-4001 Debrecen, P.0.B.51 Hungary Department of Materials Science and Engineering, Kyoto University, Yoshida - honmachi, Kyoto 606, Japan... 

This volume includes the papers of Keynote Lectures and Invited Contributions presented at the First International Workshop on DV-Xa Method (DV-Xa 96, with Special Emphasis on Inner-Shell Physics and Chemistry). The Workshop was organized by the Society for Discrete Variational Xa (Japan), the Institute of Nuclear Research of the Hungarian Academy of Sciences (ATOMKI), and the Department of Theoretical Physics of the L. Kossuth University of Debrecen, following numerous annual meetings on this topic in Japan. 

For supporting the Workshop and the publication of this volume, special thanks should be expressed to the Society of Discrete Variational Xa (Japan), and to the Institute of Nuclear Research of the Hungarian Academy of Sciences for providing the necessary facilities. The financial support of the Osaka Electro-Communication University, the SONY Corporation Research Center, the Hungarian National Committee for Technical Development, the Hungarian Scientific Research Foundation (OTKA), the Universitas Foundation, the Council of Debrecen City, and the Hotel Aranybika is also acknowledged. 

The real boom in uranium from sea projects arose in the mid-1970s when concerted efforts to develop uranium specific sorbents and to evaluate processes based on their use for uranium recovery from seawater were undertaken in Japan and West Germany. The research in Japan, conducted by the Metal Mining Agency of Japan, was sponsored by the Ministry of International Trade and Industry [166,167]. In West Germany, the studies were carried out at the Nuclear Research Center (KFA) injlilich [168]. 

Bamier, R., Caminade, S., Foudenot, F., Maurel, M., and Courtois, F., Ultrafiltration treatment of manual laundry washes from a nuclear research centre. In Conference on Waste Management, Kyoto, Japan, 1989. 

The Japan Atomic energy Research Institue (JAERI) merged with the Japan Nuclear Cycle Development Institute... 

Organisation CRIEPI (Central Research Institute of Electric Power Industry), Hitachi (Hitachi Ltd), Toshiba (Toshiba Corporation), FES (Fuji Electric Systems Co.), INC (Japan Nuclear Cycle Development Institute), JAERI (Japan Atomic Energy Research Institute), MFH (Mitsubishi Heavy Industries, Ltd), ARTEC (Advanced Reactor Technology Co.), TGC (Tokyo Gas Co.), NSA (Nuclear Systems Association), Tokyo Tech (Tokyo Institute of Technology). 

One of authors (F.M) greatly thanks for Cooperative Research Fellowship by the Japan Society for Promotion of Science, which enabled us this joint work at IPMS in Kiev. We also thank Dr. S. Harasawa (Nuclear Research Inst., Rikkyo Univ.) for neutron irradiation, Prof. H. Tamehiro (Chiba Inst. Tech.) and Dr. K. Miyazawa (Univ. of Tokyo, now at NIMS) for useful discussion and Dr. N. Nogawa (Radioisotope Center, Univ. of Tokyo) for tritium charging. 

JNC. 2000. HI2 Project to Establish the Scientific and Technical Basis for HLW Disposal in Japan. Second progress report on research and development for the geological disposal of HLW in Japan. Five volumes. Japan Nuclear Cycle Development Institute (JNC). 

Japan Nuclear Cycle Development Institute (JNC) has already developed the coupled thermo -hydro and mechanical (T-H-M) model and has initiated a research on the coupled T-H-M-C processes to predict the chemical evolution of buffer material and porewater chemistry, and the chemical effects on other (thermal, hydraulic and mechanical) processes. In this research, numerical experiment system for the coupled T-H-M-C processes is developed in order to predict the longterm evolution of the near-field (engineered barriers and surrounding host rock) for various repository designs and geological environments. 

At the ANS Mathematics and Computation Division s third biennial meeting in 1969, papers were presented describing four new modular systems for reactor design being implemented at that time CARONTE at the Euratom Joint Nuclear Research Center, Ispra, Italy CODNUC by the Commissariat a I Energia Atomique s Saclay and Cadarache centers in France NCCS by the Hitachi Central Research Laboratory in Japan and JOSHUA at the U.S. Savannah River Laboratory. Significantly, three of... 

As already indicated, the early postwar decades saw an enormous growth of both basic and applied nuclear research. Almost everywhere, certainly in the USA, Western Europe, the Soviet Union, and Japan, governments supported nuclear science on a scale never before experienced. At the first Atoms for Peace Conference convened in 1955 at Geneva under the auspices of the United Nations, a vast amount of previously classified information was publicly presented for the first time (PUAE 1956). This conference gave a considerable impetus to the dissemination of nuclear research and the worldwide use of nuclear technology. 

A scaled down procedure, appKcable to the titration of 4 mg of plutonium, was set up at lAEA/SAL with the assistance of Dounreay (MacDonald and Savage 1987) and of the Nuclear Research Institute in Rez (CSSR) (Kuvik 1991). This made possible to receive and titrate samples of Pu products taken in Japanese fadhties, as only mg amounts of plutonium can be air flown from Japan in Type A packages. The process including the preliminary redox steps, was automatized to achieve coefficients of variation of 0.05% (Kuvik et al. 1992 Ronesch et al. 1992). 23 species do not interfere, but vanadium does quantitatively, and Np partially. The test sample should carry less than mg-amounts of nitrite, fluorosUicate, and iodate. The effect of americium remains to be studied (ISO 2000). 

Japan Nuclear Cycle Development Institute, The Federation of Electric Power Companies of Japan Joint Team Concept Research Report on TRU Waste Disposal, JNC TY1400 2000-001, TRU TR-2000-01, 2000 (in Japanese). 

To accomplish this plan, the sodium cooled experimental reactor JOYO is now under operation in the Japan Atomic Energy Agency (JAEA), a new organization combining the former Japan Nuclear Cycle Development Institute (JNC) and Japan Atomic Energy Research Institute (JAERI). The JOYO reactor is being operated to develop and validate sodium, fuel, and material technologies, etc. 

The work of the FUJI had been initiated in the Japan Atomic Research Institute (JAERI, currently within the Japan Atomic Energy Agency (JAEA)) then proceeded at the Tokai University with the cooperation of the Toyohashi Technical and Science University, Fujitsu Corporation, Toshiba Corporation, the Hokkaido University, Electricite de France (EDF), ORNL (USA), Lawrence Livermore National Laboratory (LLNL, USA), Russian Federal Institute of Technical Physics in Snezhinsk, Russian Research Centre Kurchatov Institute , Joint Institute for Power and Nuclear Research in Sosny (Belarus), Nuclear Research Institute Rez (Czech Republic) and many other organizations with notable contributions coming also from individual researchers. 

Superheavy elements are defined as the transactinide elements—elements with an atomic number greater than 103. The current production of new superheavy elements takes place mostly at four locations around the world the Lawrence Berkeley National Laboratory (LBNL) at Berkeley, California the GSI Helmholtz Centre for Heavy Ion Research (GSI) at Darmstadt, Germany the Joint Institute for Nuclear Research (JINR) at Dubna, Russia and the Superheavy Element Laboratory of the Institute of Physical and Chemical Research (RIKEN) at Nishina, Japan. As of 2012, the discoveries of elements 113-118 have all been reported. The discoveries of four of these elements, however, are still awaiting independent confirmation from the other laboratories. 

Research Reactor Institute, Kyoto University, Japan Graduate School of Agriculture, Kyoto University, Japan Nuclear Fuel Cycle Engineering Laboratory, Japan Atomic Energy Agency, Japan Institute of Multidisciplinary Research for Advanced Materials, Tohoku University, Japan... 

M. Li, Department of Metallurgy, Graduate School of Engineering, Tohoku University, Japan F. Lisy, Department of Fluorine Chemistry, Nuclear Research Institute Rez, pic, Czech Republic... 

Anon., 2012b. TEPCO Fukushima Daini Nuclear Power Station Research on the status of response to the Tohoku-Pacific Ocean Earthquake and Tsunami and Lessons learned therefrom, Tokyo Japan Nuclear Safety Institute. 

The breeder reactor, which would produce and bum plutonium and gradually increase the inventory of fissionable material, requires reprocessing of nuclear fuel. As of 1995 only limited research and development was in progress on breeder reactors, mainly in France and Japan. 

Osamu Shirai Department of Nuclear Energy System, Japan Atomic Energy Research Institute, Ibaraki, Japan... 

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