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Nagao, Yoshiharu; Miyazawa, Masataka; Komukai, Bunsaku; Fujiki, Kazuo
JAERI-Tech 2003-067, 33 Pages, 2003/07
JAERI-Tech-2003-067.pdf:1.63MB
no abstracts in English
Tabata, Toshio; Nagao, Yoshiharu; Komukai, Bunsaku; Naka, Michihiro; Takeda, Takashi*; Fujiki, Kazuo
JAERI-Tech 2002-100, 108 Pages, 2003/01
JAERI-Tech-2002-100.pdf:4.44MB
After the investigation of the new core arrangement for the JMTR reactor in order to enhance the fuel burn-up and consequently extend the operation period, the "improved LEU core" that utilized 2 additional fuel elements instead of formerly installed reflector elements, was adopted. This report describes the results of the thermal-hydraulic analysis of the improved LEU core as a part of safety analysis for the licensing. The analysis covers steady state, abnormal operational transients and accidents, which were described in the annexes of the licensing documents as design bases events. Calculation conditions for the computer codes were conservatively determined based on the neutronic analysis results and others. The results of the analysis, that revealed the safety criteria were satisfied on the fuel temperature, DNBR and primary coolant temperature, were used in the licensing. The operation license of the JMTR with the improved LEU core was granted in March 2001, and the reactor operation with new core started in November 2001 as 142nd operation cycle.
Nagao, Yoshiharu; Ishii, Tadahiko; Niimi, Motoji; Fujiki, Kazuo; Takahashi, Hidetake
JAERI-Review 2002-031, 119 Pages, 2002/11
JAERI-Review-2002-031.pdf:5.64MB
The published reports on the research and development activities using the JMTR since 1971 to date have been surveyed by the search of literature database and questionnaire survey. This report compiles the title lists and abstracts of reports published by JAERI and survey the trend of the research and development in JAERI using JMTR.
Komukai, Bunsaku; Naka, Michihiro; Tabata, Toshio; Nagao, Yoshiharu; Takeda, Takashi*; Fujiki, Kazuo
JAERI-Tech 2002-067, 75 Pages, 2002/08
JAERI-Tech-2002-067.pdf:3.41MB
no abstracts in English
Nagao, Yoshiharu; Ishii, Tadahiko; Takeda, Takashi; Fujiki, Kazuo
JAERI-Review 2002-007, 191 Pages, 2002/03
JAERI-Review-2002-007.pdf:10.97MB
The published reports on the research activities using the JMTR since 1971 to date have been surveyed by the search of literature database and questionnaire survey. This report summarized the result of survey as the title lists by research categories.
Saito, Junichi; Ishii, Toshimitsu; Omi, Masao; Fujiki, Kazuo; Ito, Haruhiko; Takahashi, Hidetake
KAERI/GP-192/2002, p.3 - 11, 2002/00
no abstracts in English
Nagao, Yoshiharu; Itabashi, Yukio; Komori, Yoshihiro; Niimi, Motoji; Fujiki, Kazuo
KAERI/GP-195/2002, p.49 - 55, 2002/00
An improved analysis procedure has been introduced to evaluate irradiation field at each specimen in the irradiation capsule by using the MCNP code, which is able to model the complicated structure of the capsule directly. As the verification results, it was confirmed that the calculated fast and thermal neutron flux/fluence were agreed with measured ones within 
10% and 30%, respectively, for the irradiation tests in the JMTR. Concerning gamma dose/spectrum, it was confirmed that the calculated temperature was evaluated within -3
+14% using gamma heating obtained by MCNP calculations. The evaluations of neutron flux/fluence and specimens temperature with high accuracy are therefore possible in the irradiation test of the JMTR.
Shimakawa, Satoshi; Nagao, Yoshiharu; Fujiki, Kazuo
Reactor Dosimetry: Radiation Metrology and Assessment (ASTM STP 1398), p.244 - 251, 2001/00
no abstracts in English
Fujiki, Kazuo
Nihon Genshiryoku Gakkai-Shi, 41(9), p.933 - 934, 1999/09
no abstracts in English
Nagao, Yoshiharu; Komukai, Bunsaku; Tabata, Toshio; Takeda, Takashi; Fujiki, Kazuo
JAERI-Tech 99-063, 57 Pages, 1999/08
no abstracts in English
Tabata, Toshio; Komukai, Bunsaku; Nagao, Yoshiharu; Shimakawa, Satoshi; Koike, Sumio; Takeda, Takashi; Fujiki, Kazuo
JAERI-Tech 99-021, 68 Pages, 1999/03
no abstracts in English
Hirabayashi, Takakuni; Kanazawa, Katsuo; Fujiki, Kazuo; *; *
Proc. of Int. Conf. on Incineration & Thermal Treatment Technologies (IT3 Conference), p.261 - 264, 1998/00
no abstracts in English
Takeda, Takashi; Komukai, Bunsaku; ; ; Fujiki, Kazuo; Ooka, Norikazu
Dekomisshoningu Giho, (17), p.55 - 62, 1997/12
no abstracts in English
Nakamura, Hisashi; Fujiki, Kazuo
Nuclear Technology, 117(2), p.195 - 205, 1997/02
Times Cited Count：8 Percentile：56.36(Nuclear Science & Technology)no abstracts in English
*; Nakamura, Hisashi; Kanazawa, Katsuo; Fujiki, Kazuo; *
Chuzo Kogaku, 68(8), p.644 - 649, 1996/00
no abstracts in English
Fujiki, Kazuo; Nakamura, Hisashi
Doryoku, Enerugi Gijutsu No Saizensen : Doryoku, Enerugi Gijutsu Shimpojiumu Koen Rombunshu 1996, 0, p.372 - 374, 1996/00
no abstracts in English
Miyasaka, Yasuhiko; ; Tanaka, Mitsugu; Nakamura, Hisashi; ; Tachibana, Mitsuo; ; Hatakeyama, Mutsuo; ; Yoshimori, Michiro; et al.
Nihon Genshiryoku Gakkai-Shi, 38(7), p.553 - 576, 1996/00
no abstracts in English
Nakamura, Hisashi; Kanazawa, Katsuo; Fujiki, Kazuo
The 3rd JSME/ASME Joint Int. Conf. on Nuclear Engineering (ICONE),Vol. 4, 0, p.1785 - 1789, 1995/00
no abstracts in English
Fujiki, Kazuo;
EUR-15691, 0, p.133 - 146, 1994/00
no abstracts in English
Fujiki, Kazuo;
EUR-15691, 0, p.397 - 403, 1994/00
no abstracts in English
