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Yamaguchi, Isoo*; Morita, Yasuji; Fujiwara, Takeshi; Yamagishi, Isao
JAERI-Tech 2005-054, 61 Pages, 2005/09
JAERI-Tech-2005-054.pdf:12.38MB
The HLW-79Y-4T type transportation cask for liquid radioactive fuel material (commonly called "Cendrillon") was imported from France and modified for Japanese regulation in order to obtain high-level radioactive liquid waste (HLW) for partitioning tests in JAERI by transportation from Tokai Establishment of Japan Nuclear Fuel Cycle Development Institute. The cask was used for the HLW transportation five times from 1982 to 1990. After that, it was kept and maintained for next transportation of HLW from facilities outside JAERI. Finally, we decided to decompose the cask because HLW can be obtained in JAERI Tokai. For the decomposition, radiation dose and contamination by radioactivity was first measured and then the methods to reduce those levels were determined. The cask was decomposed after the decontamination to separate the part that has high radiation level. The separated part was put in a vessel specially prepared. The present report describes those procedures for the decomposition of the transportation cask.
Yamaguchi, Isoo*; Suzuki, Shinichi; Sasaki, Yuji; Yamagishi, Isao; Matsumura, Tatsuro; Kimura, Takaumi
JAERI-Tech 2005-037, 56 Pages, 2005/07
JAERI-Tech-2005-037.pdf:2.31MB
For the development of the reprocessing of spent nuclear fuels, the solvent extraction using the mixer-settler equipment is greatly available. This method has the advantages of the treatment of the large mass of materials and continuous operations. In case of the application of the mixer-settler devise, the precise calculation using the distribution ratio of metals in order to determine the metal concentration at each stage is indispensable. This calculation is performed in the development of ARTIST process. The metal concentration in each stage of ARTIST process is calculated by the simulation using excel software equipped with counter-current equations. This method is not taken into consideration of the change of acid concentration, therefore, we developed the new method to calculate the metal concentration even after acidity change. This method can calculate not only the metal concentration at each extraction step but also at each stage of mixer-settler. Using this calculation, we evaluated the optimum condition of solvent extraction in ARTIST process.
Yamagishi, Isao; Yamaguchi, Isoo; Kubota, Masumitsu*
JAERI-Research 2000-038, 40 Pages, 2000/09
JAERI-Research-2000-038.pdf:1.33MB
no abstracts in English
Morita, Yasuji; Yamaguchi, Isoo; Fujiwara, Takeshi; Mizoguchi, Kenichi*; Kubota, Masumitsu*
JAERI-Research 2000-024, 55 Pages, 2000/06
JAERI-Research-2000-024.pdf:2.24MB
no abstracts in English
Morita, Yasuji; Yamaguchi, Isoo; ; *; Kubota, Masumitsu
Proc. of the Int. Conf. on Future Nuclear Systems (GLOBAL'99)(CD-ROM), 8 Pages, 1999/00
no abstracts in English
Morita, Yasuji; Mizoguchi, Kenichi*; Yamaguchi, Isoo; ; Kubota, Masumitsu
JAERI-Research 98-046, 18 Pages, 1998/08
JAERI-Research-98-046.pdf:1.01MB
no abstracts in English
Mizoguchi, Kenichi*; Yamaguchi, Isoo; Morita, Yasuji; Yamagishi, Isao; ; Kubota, Masumitsu
JAERI-Research 98-026, 29 Pages, 1998/05
JAERI-Research-98-026.pdf:1.45MB
no abstracts in English
Mizoguchi, Kenichi*; Yamaguchi, Isoo; Morita, Yasuji; ; Kubota, Masumitsu
JAERI-Research 97-071, 27 Pages, 1997/10
JAERI-Research-97-071.pdf:0.89MB
no abstracts in English
Morita, Yasuji; Yamaguchi, Isoo; ; Mizoguchi, Kenichi*; Kubota, Masumitsu
JAERI-Research 97-046, 35 Pages, 1997/07
JAERI-Research-97-046.pdf:1.3MB
no abstracts in English
Yamaguchi, Isoo; Morita, Yasuji; ; Mizoguchi, Kenichi*; Kubota, Masumitsu
JAERI-Tech 97-023, 23 Pages, 1997/06
no abstracts in English
Yamaguchi, Isoo; Morita, Yasuji; ; ; ; ; *; *; ; Kubota, Masumitsu
JAERI-Tech 96-009, 51 Pages, 1996/03
no abstracts in English
Yamaguchi, Isoo; *; Morita, Yasuji; ; Shirahashi, Koichi; ; ; *; ; *; et al.
JAERI-Tech 94-030, 53 Pages, 1994/11
no abstracts in English
*; ; Yamaguchi, Isoo; Kubota, Masumitsu
JAERI-M 93-010, 38 Pages, 1993/02
no abstracts in English
Kubota, Masumitsu; Yamaguchi, Isoo; Morita, Yasuji; ; Shirahashi, Koichi; ;
Proc. of the Future Nuclear Systems: Emerging Fuel Cycles and Waste Disposal Options; GLOBAL 93, p.588 - 594, 1993/00
no abstracts in English
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