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Kishimoto, Katsumi; Arigane, Kenji*
JAERI-Tech 2005-016, 83 Pages, 2005/03
JAERI-Tech-2005-016.pdf:10.52MB
Revaluation to activation activity of reactor evaluated at the notification of dismantling submitted in 1997 was carried out in JRR-2 where decommissioning was advanced now. In the revaluation, estimation accuracy on neutron streaming at various horizontal experimental tubes was improved by applying 3 dimensional model to neutron transport calculation that had been carried out by 2 dimensional model, and calculating with TORT. As the result, excessive overestimations on horizontal experimental tubes and biological shield that had greatly contributed to total activation activity in evaluation at the notification of dismantling was revised, sum of their activation activities in the revaluation decreased to 1/18(case after 1 year from the permanent shutdown of reactor) of evaluation at the notification of dismantling, and the structural materials that had large activation activity were changed. By the above, it was shown that introducing 3 dimensional model was effective in evaluation on activation activity of the research reactor that had a lot of various experimental tubes.
Nakano, Masahiro; Arigane, Kenji; Okawa, Hiroshi; Suzuki, Takeshi; Kishimoto, Katsumi; Terunuma, Akihiro; Yano, Masaaki; Sakuraba, Naotoshi; Oba, Nagamitsu
JAERI-Tech 2003-072, 92 Pages, 2003/08
JAERI-Tech-2003-072.pdf:6.99MB
The decommissioning plan of the Japan Research reactor No2(JRR-2), decommissioning activities until the first half of phase-3, radioactive wastes and exposure dose of workers are described in this report. Since the first criticality in October 1960, JRR-2 had been operated about 36 years for various experiments. However, JRR-2 was permanent shutdown in December 1996 based on JAERI's long term plan, and the decommissioning of the JRR-2 was started in August 1997. Decommissioning of the JRR-2 was planed for 11 years from 1997 to 2007 and the program was divided into 4 phases. The decommissioning activities of the phase-1, phase-2 and the first half of phase-3 had already completed as planned in March 1998, February 2000, March 2002, respectively. The decommissioning activities of the later half of Phase-3 (dismantling of the reactor cooling systems) are carrying out at present time with planed 2002 and 2003 fiscal years.
Iwashita, Mitsushige*; Arigane, Kenji; Kishimoto, Katsumi; Seiki, Y.*; Fukumura, Nobuo*; Mio, K.*
Journal of Nuclear Science and Technology, 37(Suppl.1), p.372 - 378, 2000/03
no abstracts in English
Arigane, Kenji
Dai-14-Kai Rikkyo Daigaku Gensiryoku Kenkyujo Koenkai Rombunshu (IAERU-9904), p.19 - 29, 2000/00
no abstracts in English
Kishimoto, Katsumi; Bamba, Masao; Arigane, Kenji
JAERI-Conf 99-006, p.96 - 101, 1999/08
no abstracts in English
Kishimoto, Katsumi; Bamba, Masao; Arigane, Kenji
Proc. of 1999 Workshop on the Utilization of Research Reactors, p.96 - 101, 1999/00
no abstracts in English
Kaieda, Keisuke; ; Arigane, Kenji
Genshiryoku Nenkan '98/'99-Nen Ban, P. 216, 1998/12
no abstracts in English
Seguchi, Tadao; ; Arigane, Kenji
S+N (seeds and needs), 0, p.6 - 13, 1994/09
no abstracts in English
Arigane, Kenji; ; Sasajima, Fumio; Takahashi, Hidetake; Seguchi, Tadao;
JAERI-Tech 94-004, 33 Pages, 1994/07
no abstracts in English
Arigane, Kenji; Takahashi, Hidetake
KURRI-TR-392, 0, p.25 - 33, 1994/06
no abstracts in English
; Arigane, Kenji; ; Takahashi, Hidetake; Seguchi, Tadao
39th Int. SAMPE Symp. and Exhibition,Vol. 39 (Book 2), 0, p.2231 - 2243, 1994/00
no abstracts in English
Arigane, Kenji; ; ; Seguchi, Tadao; Takahashi, Hidetake
Proc. of 4th Asian Symp. on Research Reactors, 10 Pages, 1993/00
no abstracts in English
Arigane, Kenji; ; ; Aoyama, Isao; Seguchi, Tadao; Takahashi, Hidetake
JAERI-M 92-078, 22 Pages, 1992/06
no abstracts in English
Arigane, Kenji; Yamada, Tadanori; ; ;
JAERI-M 91-139, 60 Pages, 1991/09
no abstracts in English
Arigane, Kenji
Oyo Hoshasen Kagaku Shimpojiumu; Hoshasen Kankyo To Kobunshi Zairyo Koen Yoshishu, p.25 - 28, 1991/01
no abstracts in English
Arigane, Kenji; Watanabe, Shukichi; Tsuruta, Harumichi
JAERI-M 88-078, 21 Pages, 1988/04
no abstracts in English
Arigane, Kenji; Watanabe, Shukichi; Tsuruta, Harumichi
Japan-China Symp. on Research and Test Reactors, 17 Pages, 1988/00
no abstracts in English
Arigane, Kenji
JAERI-M 87-063, 133 Pages, 1987/04
no abstracts in English
