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Maeda, Yukimoto; Kashimura, Yoichi; Suzuki, Toshiaki; Isozaki, Kazunori; Hoshiba, Hideaki; Kitamura, Ryoichi; Nakano, Tomoyuki; Takamatsu, Misao; Sekine, Takashi
JNC TN9440 2005-001, 540 Pages, 2005/02
JNC-TN9440-2005-001.pdf:8.35MB
Periodic safety review (Review of the activity for safety) which consisted of "Comprehensive evaluation of operation experience" and "Incorporation of the latest technical knowledge" was carried out up to January 2005.
Maeda, Yukimoto*; *; *; *; *
PNC TN9410 89-130, 36 Pages, 1989/09
Radioactive corrosion products (CP) are transported to the primary circuite and deposited on the wall of the primary piping and components. Radioactive CPs are also transferred to the fuel cleaning system following refueling operations, and the liquid waste from the fuel cleaning facility transfer CPs to the liquid waste disposal system. These deposited CPs and transferred CPs make radiation fields near the piping and components, and cause radiation burden to the plant personnel in maintenance of these systems. In order to establish the techniques of radiation dose reduction R&D program named "ALPHABET project" was conducted from 1984 to 1987 and the expected results were achieved by the activities. Radiation dose reduction techniques are improved in LWR by reduction of radioactive CRUD. Therefore, R&D for radiation dose reductjon of FBR plant is necessary to show the advantage of FBR. Based on this understanding, ALPHABET project has newly started as phase-II program to research and develop the reduction techniques of radioactive waste in addition to the remaining subjects to be improved. This report describes the R&D programs of ALPHABET project phase II.
Kishimoto, Yoichiro; Kawata, Tomio*; Ouchi, Jin; *; Sanyoshi, Hirotaka*; ; *
PNC TN8410 88-004, 123 Pages, 1987/12
None
Ouchi, Jin; Sanyoshi, Hirotaka*; ; Kishimoto, Yoichiro; Kawata, Tomio*; ; *; *
PNC TN8410 87-011, 253 Pages, 1987/01
None
Ouchi, Jin; Sanyoshi, Hirotaka*; ; Kishimoto, Yoichiro; Kawata, Tomio*; ; *; *
PNC TN8410 87-012, 98 Pages, 1986/12
None
*; Maeda, Yukimoto*; *; *; *; *; *
PNC TN941 85-16, 256 Pages, 1985/02
The forth annual inspection was conducted during the period from December 1, 1983 to April 28, 1984 in order to maintain the safety operation of the JOYO plant. As the forth annual inspection was the first inspection conducted after the core conversion work, the schedule and the contents were planned to be a prototype of the FBR annual inspection. We obtained a lot of precious experiences of the LMFBR inspection under the condition of activated sodium and corrosion products, such as disassembling and inspection of the primary main pump (A), and all activities were completed on schedule without any trouble.
- ray exposureKitahara, Yoshihisa*; ; Kishimoto, Yoichiro; *; *; *; *; *
PNC TN852 83-23, 37 Pages, 1983/10
None
*; Setoguchi, Keiichi; *; *; *; *; Miyaguchi, Kimihide
PNC TN941 82-270, 109 Pages, 1982/12
Following surveillance tests ought to be performed five times during twenty years operation of Joyo. (1)Surveillance test of reactor vessel (2)Surveillance test of safety vessel (3)Surveillance test of primary main cooling system (4)Surveillanee test of secondary cooling system The first taking-out of surveillance test pieces from the secondary dump tank was carried out from Feb. 22 to Mar. 10, 1982, based on the surveillance test, program of secondary cooling system. We had to perform the work under the conditions such as the sodium filled in the dump tank and to protect the air from coming into the tank. This report describes the details of the working processes.
exposureKitahara, Yoshihisa*; ; Kishimoto, Yoichiro; *; *; *; *; *
PNC TN852 81-65, 44 Pages, 1981/11
None
-ray exposureKitahara, Yoshihisa*; ; Kishimoto, Yoichiro; *; *; *; *; *
PNC TN852 81-20, 43 Pages, 1981/06
None
