Initialising ...
Initialising ...
Initialising ...
Initialising ...
Initialising ...
Initialising ...
Initialising ...
Kishida, Norio*; Murata, Toru*; Asami, Tetsuo*; Kosako, Kazuaki*; Maki, Koichi*; Harada, Hideo*; Lee, Y.*; Chang, J.*; Chiba, Satoshi; Fukahori, Tokio
AIP Conference Proceedings 769, p.199 - 202, 2005/05
Nuclear data for photonuclear reactions are required in the field of shielding design of high-energy electron accelerators and high-energy 
-ray therapy. The JENDL Photonuclear Data File was prepared by a working group on nuclear data evaluations for photonuclear reactions in Japanese Nuclear Data Committee. From a survey of many literatures, it is difficult to construct the photonuclear data file by using only measured data, since there are not sufficient experimental data. We were therefore evaluating with theoretical calculations based on statistical nuclear reaction models. The photonuclear cross sections that are to be contained in the file are as follows: photoabsorption cross sections, yield cross sections and DDX for neutrons, protons, deuterons, tritons, 
He-particles and alpha-particles, and isotope production cross sections. For the actinide nuclides, photofission cross sections are also included. The maximum energy of incident photons is 140 MeV and stored are the photonuclear data for 68 nuclides from 
H to 
Np.
Shibata, Keiichi; Asami, Tetsuo*; Watanabe, Takashi*; Watanabe, Yukinobu*; Yamamuro, Nobuhiro*; Igashira, Masayuki*; Kitazawa, Hideo*
JAERI-Research 2003-021, 49 Pages, 2003/09
JAERI-Research-2003-021.pdf:2.82MB
Evaluations of neutron nuclear data for medium-heavy nuclides were performed for JENDL-3.3. The present work was undertaken to remove the drawbacks of the previous library JENDL-3.2. Recent measurements and nuclear model calculations were taken into account to improve the accuracy of the evaluated data. The data on natural elements were not produced in order to solve a problem of the inconsistency between elemental and isotopic data except for carbon and vanadium in JENDL-3.3.
Shibata, Keiichi; Kawano, Toshihiko*; Nakagawa, Tsuneo; Iwamoto, Osamu; Katakura, Junichi; Fukahori, Tokio; Chiba, Satoshi; Hasegawa, Akira; Murata, Toru*; Matsunobu, Hiroyuki*; et al.
Journal of Nuclear Science and Technology, 39(11), p.1125 - 1136, 2002/11
Times Cited Count：669 Percentile：96.97(Nuclear Science & Technology)Evaluation for JENDL-3.3 has been performed by considering the accumulated feedback information and various benchmark tests of the previous library JENDL-3.2. The major problems of the JENDL-3.2 data were solved by the new library: overestimation of criticality values for thermal fission reactors was improved by the modifications of fission cross sections and fission neutron spectra for 
U; incorrect energy distributions of secondary neutrons from important heavy nuclides were replaced with statistical model calculations; the inconsistency between elemental and isotopic evaluations was removed for medium-heavy nuclides. Moreover, covariance data were provided for 20 nuclides. The reliability of JENDL-3.3 was investigated by the benchmark analyses on reactor and shielding performances. The results of the analyses indicate that JENDL-3.3 predicts various reactor and shielding characteristics better than JENDL-3.2.
Shibata, Keiichi; *; Asami, Tetsuo*; Mizumoto, Motoharu; *; *; *
Journal of Nuclear Science and Technology, 34(5), p.503 - 509, 1997/05
Times Cited Count：3 Percentile：30.37(Nuclear Science & Technology)no abstracts in English
Nakagawa, Tsuneo; Shibata, Keiichi; Chiba, Satoshi; Fukahori, Tokio; Nakajima, Yutaka; ; Kawano, Toshihiko*; Kanda, Yukinori*; Osawa, Takaaki*; Matsunobu, Hiroyuki*; et al.
Journal of Nuclear Science and Technology, 32(12), p.1259 - 1271, 1995/12
Times Cited Count：497 Percentile：99.95(Nuclear Science & Technology)no abstracts in English
Shibata, Keiichi; *; Asami, Tetsuo*
INDC(NDS)-334, 0, p.127 - 136, 1995/05
no abstracts in English
Asami, Tetsuo*; Nakagawa, Tsuneo
JAERI-M 93-195, 200 Pages, 1993/10
no abstracts in English
Fukahori, Tokio; Chiba, Satoshi; Asami, Tetsuo*
JAERI-M 92-053, 205 Pages, 1992/04
no abstracts in English
*; Iijima, Shungo*; Asami, Tetsuo*
JAERI-M 91-006, 65 Pages, 1991/02
no abstracts in English
Nakagawa, Tsuneo; Asami, Tetsuo*; Yoshida, Tadashi*
JAERI-M 90-099, 485 Pages, 1990/07
no abstracts in English
Shibata, Keiichi; Nakagawa, Tsuneo; Asami, Tetsuo*; Fukahori, Tokio; ; Chiba, Satoshi; Mizumoto, Motoharu; ; ; Nakajima, Yutaka; et al.
JAERI 1319, 516 Pages, 1990/06
no abstracts in English
OShibata, Keiichi; Asami, Tetsuo*; *; Kanda, Yukinori*; Chiba, Satoshi; Nakajima, Yutaka; *
JAERI-M 90-012, 32 Pages, 1990/02
no abstracts in English
Asami, Tetsuo*; Iijima, Shungo*; ; Ihara, Hitoshi; Kawai, Masayoshi*; ; Komuro, Yuichi; Shibata, Keiichi; Takano, Hideki; *; et al.
Nihon Genshiryoku Gakkai-Shi, 31(11), p.1190 - 1217, 1989/11
no abstracts in English
Fujiwara, Masayuki*; Nishida, Toshio*; Soshiroda, Tetsuo*; *
PNC TJ9058 88-007, 189 Pages, 1988/08
As the Oxide Dispersion Strengthened (ODS) ferritic steels have excellent resistance to swelling as well as superior strength at elevated temperatures, they are expected for the long life fuel claddings of the large scale FBR's. To evaluate the applicability of the ODS ferritic steels for the fuel claddings, we investigated the effects of the manufacturing conditions, the additional elements (Nb, V, Zr), the combined strengthening of solutin (W,Mo) and dispersion hardenings, and the kinds of the oxide particles (Y
O
, ZrO) on the properties, especially the elevated - temperature strength, of the ODS ferritic steels. (1)The conditions of the mechanical alloying(MA) process using the attritor showed the strong effect on the properties of the ODS steels. The higher energy the alloy powders are given, the better dispersion of the oxide particles is obtained. The higher agitater speed of the attritor is thought to be the most efficient condition among the MA conditions. (2)The mixed oxied were formed in the Nb and Zr added steels, but in the V added steel the formation of the mixed oxides was not observed. The additions of Nb and V raised the elevated - temperature strength, while the addition of Zr showed little effect on the strength. (3)The additions of the solution hardening elements, Mo and W, up to about 2% increased the creep rupture strength. The effect of W was larger than that of Mo. (4)We chose ZrO instead of YO, and studied the effect of ZrO dispersion on the elevated - temperature strength of the ODS ferritic steels. Although the effect of ZrO on the strength is rather smaller than that of YO, the dispersion strengthening by ZrO particles was observed.
Nakagawa, Tsuneo; Asami, Tetsuo
JAERI-M 87-025, 360 Pages, 1987/02
no abstracts in English
Asami, Tetsuo;
JAERI-M 86-080, 429 Pages, 1986/06
no abstracts in English
; Asami, Tetsuo
JAERI-M 86-029, 210 Pages, 1986/03
no abstracts in English
*
JAERI-M 85-035, 409 Pages, 1985/03
no abstracts in English
Kikuchi, Yasuyuki; Nakagawa, Tsuneo; Asami, Tetsuo; *; *; *
Journal of Nuclear Science and Technology, 22(8), p.593 - 603, 1985/00
Times Cited Count：13 Percentile：47.95(Nuclear Science & Technology)no abstracts in English
Kikuchi, Yasuyuki; Shibata, Keiichi; Asami, Tetsuo; ; *; *
Journal of Nuclear Science and Technology, 22(6), p.499 - 503, 1985/00
Times Cited Count：3 Percentile：53.49(Nuclear Science & Technology)no abstracts in English
