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Okumura, Keisuke; Kawasaki, Kenji*; Mori, Takamasa
JAERI-Research 2005-018, 64 Pages, 2005/08
JAERI-Research-2005-018.pdf:3.26MB
In the KRITZ-2 critical experiments, criticality and pin power distributions were measured at room temperature and high temperature (about 245 degree C) for three different cores loading slightly enriched UO
or MOX fuels. For nuclear data testing, benchmark analysis was carried out with a continuous-energy Monte Carlo code MVP and its four nuclear data libraries based on JENDL-3.2, JENDL-3.3, JEF-2.2 and ENDF/B-VI.8. As a result, fairly good agreements with the experimental data were obtained with any libraries for the pin power distributions. However, the JENDL-3.3 and ENDF/B-VI.8 give under-prediction of criticality and too negative isothermal temperature coefficients for slightly enriched UO cores, while the older nuclear data JENDL-3.2 and JEF-2.2 give rather good agreements with the experimental data. From the detailed study with an infinite unit cell model, it was found that the differences among the libraries are mainly due to the different fission cross section of U-235 in the energy rage below 1.0 eV.
Mai, H. H.*; Duong, N. D.*; Kojima, Takuji
Radiation Physics and Chemistry, 69(5), p.439 - 444, 2004/04
Times Cited Count：20 Percentile：77.11(Chemistry, Physical)Characteristics of the polyvinyl chloride films containing 0.11wt% of malachite green oxalate or 6GX-setoglausine with 100
m in thickness were studied for use as routine dosimeters in radiation processing. These films show basically color bleaching under 
Co 
-ray irradiation in a dose range of 5 to 50 kGy. The sensitivity of the dosimeters and the linearity of dose response curves are improved by adding 2.5% of chloral hydrate [CCl
CH(OH)
] and 0.15% hydroquinone [HOC
H
OH]. These additions extent the minimum dose limit to 1 kGy covering dosimetric quality assurance in radiation processing of food and healthcare products. The dose responses of both films at irradiation temperatures of 20-35
C are constant relative to those at 25C, and the irradiation temperature coefficients for 35-55C were estimated to be (0.43 
0.01)%/ C. The dosimeter characteristics are stable within 1% at 25C before and 60 days after irradiation.
Fujimoto, Nozomu; Nojiri, Naoki; Takada, Eiji*; Saito, Kenji; Kobayashi, Shoichi; Sawahata, Hiroaki; Kokusen, Shigeru
JAERI-Tech 2000-091, 49 Pages, 2001/03
no abstracts in English
Yamane, Tsuyoshi; Yamashita, Kiyonobu; Fujimoto, Nozomu
New approaches to the nuclear fuel cycles and related disposal schemes, 1, p.267 - 277, 1998/00
no abstracts in English
H.H.Mai*; Tachibana, Hiroyuki; Kojima, Takuji
Radiation Physics and Chemistry, 53(1), p.85 - 91, 1998/00
Times Cited Count：5 Percentile：44.6(Chemistry, Physical)no abstracts in English
Fujimoto, Nozomu; Yamashita, Kiyonobu
Proc. of Int. Conf. on Future Nuclear Systems (Global'97), 2, p.957 - 962, 1997/00
no abstracts in English
Pu-enriched plutonium*; Yamashita, Kiyonobu; Shindo, Ryuichi; Fujimoto, Nozomu
JAERI-Tech 96-025, 50 Pages, 1996/06
no abstracts in English
; Yamane, Tsuyoshi
JAERI-Research 95-081, 32 Pages, 1995/11
JAERI-Research-95-081.pdf:1.28MB
no abstracts in English
; Yamane, Tsuyoshi; Sasa, Toshinobu
JAERI-Data/Code 94-013, 17 Pages, 1994/10
JAERI-Data-Code-94-013.pdf:0.77MB
no abstracts in English
; ; Aso, Tomokazu; Niimi, Motoji
JAERI-M 92-149, 78 Pages, 1992/10
no abstracts in English
Yamashita, Kiyonobu; Murata, Isao; Shindo, Ryuichi
Nuclear Science and Engineering, 110, p.177 - 185, 1992/02
Times Cited Count：3 Percentile：53.41(Nuclear Science & Technology)no abstracts in English
Kojima, Takuji; L.Chen*; Haruyama, Yasuyuki; Tachibana, Hiroyuki; Tanaka, Ryuichi
Applied Radiation and Isotopes, 43(7), p.863 - 867, 1992/00
no abstracts in English
; ; Hoshiya, Taiji
Journal of Nuclear Science and Technology, 28(10), p.961 - 964, 1991/10
no abstracts in English
Yamashita, Kiyonobu; Shindo, Ryuichi; Murata, Isao; Nakagawa, Shigeaki; Nakata, Tetsuo*; *
JAERI-M 90-008, 49 Pages, 1990/02
no abstracts in English
Yamane, Tsuyoshi; ; Akino, Fujiyoshi; Kaneko, Yoshihiko
Journal of Nuclear Science and Technology, 27(2), p.122 - 132, 1990/02
no abstracts in English
G.Xu*; Kumamaru, Hiroshige; Tasaka, Kanji
JAERI-M 89-178, 35 Pages, 1989/11
no abstracts in English
JAERI-M 87-063, 133 Pages, 1987/04
no abstracts in English
; ; ; ; ;
Nucl.Eng.Des., 102, p.11 - 20, 1987/00
Times Cited Count：5 Percentile：51(Nuclear Science & Technology)no abstracts in English
Journal of Nuclear Science and Technology, 14(11), p.826 - 832, 1977/11
Times Cited Count：2no abstracts in English
; Inabe, Teruo;
Nihon Genshiryoku Gakkai-Shi, 17(6), p.314 - 321, 1975/06
no abstracts in English
; ;
JAERI-M 5730, 52 Pages, 1974/06
no abstracts in English
