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Sono, Hiroki; Tsukamoto, Michio; Aizawa, Eiju; Takeuchi, Masaki; Fukaya, Yuji; Iseda, Hirokatsu*; Ogawa, Kazuhiko; Sakuraba, Koichi; Tonoike, Kotaro
UTNL-R-0446, p.3_1 - 3_10, 2005/03
This report describes an investigation and countermeasures of the unexpected reactor shutdown of the TRACY facility at the Japan Atomic Energy Research Institute on June 17, 2004, caused by a malfunction of a safety rod of the facility. As a result of the investigation, the principal cause of the malfunction was ascribed to a drop in attraction of a binding magnet for the safety rod by a small piece of a foreign material. The following countermeasures were taken against its recurrence: prevention of incidence of foreign materials, reduction of the chance of intrusion of foreign materials into devices, and certain detection of foreign materials. This lesson learned through the experience is expected to be shared with the staffs concerned in reactor operation and maintenance.
Takada, Junichi; Hayashi, Shiro*; Watanabe, Koji; Takita, Koji*; Tsukamoto, Michio; Tashiro, Shinsuke; Abe, Hitoshi*; Uchiyama, Gunzo*
JAERI-Tech 2002-102, 87 Pages, 2003/01
no abstracts in English
Aizawa, Eiju; Ogawa, Kazuhiko; Sakuraba, Koichi; Tsukamoto, Michio; Sugawara, Susumu; Takeuchi, Masaki*; Miyauchi, Masakatsu; Yanagisawa, Hiroshi; Ono, Akio
JAERI-Tech 2002-031, 120 Pages, 2002/03
TRACY (Transient Experiment Critical Facility) in NUCEF (Nuclear Safety Research Facility) is the pulse-type critical facility using uranyl nitrate solution which can carry out various supercritical experiments changing reactivity addition up to 3$.TRACY achieved its first criticality on 20th December 1995,and transient operations have been conducted Since1996.This report summarizes the operation data of 176 experiments from the first criticality to FY2000.
Tsukamoto, Michio; Takada, Junichi; Koike, Tadao; Watanabe, Koji*; Miyata, Teijiro*; Nishio, Gunji*; Murata, Mikio*; Uchiyama, Gunzo
JAERI-Tech 2001-031, 47 Pages, 2001/03
no abstracts in English
Tsukamoto, Michio; Takada, Junichi; Koike, Tadao; Watanabe, Koji*; Miyata, Teijiro*; Nishio, Gunji*; Murata, Mikio
JAERI-Tech 2000-036, p.43 - 0, 2000/03
no abstracts in English
Miyata, Teijiro*; Takada, Junichi; Ida, Masaaki*; Nakagiri, Naotaka*; Koike, Tadao; Tsukamoto, Michio; Watanabe, Koji*; Nishio, Gunji*
JAERI-Tech 2000-035, p.64 - 0, 2000/03
no abstracts in English
Fujine, Sachio; Murata, Mikio; Abe, Hitoshi; Takada, Junichi; Tsukamoto, Michio; Miyata, Teijiro*; Ida, Masaaki*; Watanabe, Makio; Uchiyama, Gunzo; Asakura, Toshihide; et al.
JAERI-Research 99-056, p.278 - 0, 1999/09
no abstracts in English
Abe, Hitoshi; Takada, Junichi; Tsukamoto, Michio; ; Murata, Mikio
Journal of Nuclear Science and Technology, 36(7), p.619 - 625, 1999/07
Times Cited Count:0 Percentile:0.01(Nuclear Science & Technology)no abstracts in English
Miyata, Teijiro; Takada, Junichi; Nakagiri, Naotaka*; Koike, Tadao; Tsukamoto, Michio; ; Nishio, Gunji*
JAERI-Tech 99-040, 194 Pages, 1999/05
no abstracts in English
Miyata, Teijiro; Takada, Junichi; Ida, Masaaki*; Nakagiri, Naotaka*; Tsukamoto, Michio; Koike, Tadao; ; Nishio, Gunji*
JAERI-Tech 99-039, 70 Pages, 1999/05
no abstracts in English
Murata, Mikio; Takada, Junichi; Tsukamoto, Michio
KURRI-KR-30, p.5 - 11, 1998/00
no abstracts in English
Takada, Junichi; Suzuki, Motoe; Tsukamoto, Michio; Koike, Tadao;
JAERI-Tech 96-054, 237 Pages, 1996/12
no abstracts in English
Takada, Junichi; Suzuki, Motoe; Tsukamoto, Michio; Koike, Tadao; Nishio, Gunji
JAERI-Tech 95-024, 339 Pages, 1995/03
no abstracts in English
Koike, Tadao; Nishio, Gunji; Takada, Junichi; Tsukamoto, Michio; Miyata, Teijiro;
JAERI-Tech 95-005, 84 Pages, 1995/02
no abstracts in English
Nishio, Gunji; Suzuki, Motoe; Takada, Junichi; Koike, Tadao; Tsukamoto, Michio
JAERI-M 93-019, 209 Pages, 1993/02
no abstracts in English
Suzuki, Motoe; Nishio, Gunji; Takada, Junichi; Tsukamoto, Michio; Koike, Tadao
JAERI 1328, 90 Pages, 1993/01
no abstracts in English
Takada, Junichi; Koike, Tadao; Tsukamoto, Michio; Nishio, Gunji; Kitani, Susumu*; Uno, Seiichiro; ; Watanabe, Hironori; Hashimoto, Kazuichiro
JAERI-M 92-048, 332 Pages, 1992/03
no abstracts in English
Tsukamoto, Michio; Takada, Junichi; Koike, Tadao; Nishio, Gunji; Kitani, Susumu*; Uno, Seiichiro; ; Watanabe, Hironori; Hashimoto, Kazuichiro
JAERI-M 92-047, 384 Pages, 1992/03
no abstracts in English
Takada, Junichi; Koike, Tadao; Tsukamoto, Michio; Nishio, Gunji; Kitani, Susumu*; Uno, Seiichiro; ; Watanabe, Hironori; Hashimoto, Kazuichiro
JAERI-M 91-145, 195 Pages, 1991/09
no abstracts in English
Nishio, Gunji; Suzuki, Motoe; ; Takada, Junichi; Tsukamoto, Michio; Koike, Tadao
Nuclear Technology, 95, p.325 - 335, 1991/09
Times Cited Count:0 Percentile:0.01(Nuclear Science & Technology)no abstracts in English
Nishio, Gunji; Suzuki, Motoe; Takada, Junichi; Tsukamoto, Michio; Koike, Tadao
Proc. of the CSNI Specialist Meeting on Safety and Risk Assessment in Fuel Cycle Facilities, p.205 - 221, 1991/00
no abstracts in English