Initialising ...
Initialising ...
Initialising ...
Initialising ...
Initialising ...
Initialising ...
Initialising ...
Konno, Chikara; Ota, Masayuki*; Kwon, Saerom*; Onishi, Seiki*; Yamano, Naoki*; Sato, Satoshi*
Journal of Nuclear Science and Technology, 60(9), p.1046 - 1069, 2023/09
Times Cited Count：5 Percentile：97.05(Nuclear Science & Technology)JENDL-5 was validated from a viewpoint of shielding applications under the Shielding Integral Test Working Group of the JENDL Committee. The following benchmark experiments were selected: JAEA/FNS in-situ experiments, Osaka Univ./OKTAVIAN TOF experiments, ORNL/JASPER sodium experiments, NIST iron experiment and QST/TIARA experiments. These experiments were analyzed with MCNP and nuclear data libraries (JENDL-5, JENDL-4.0 or JENDL-4.0/HE, ENDF/B-VIII.0 and JEFF-3.3). The analysis results demonstrate that JENDL-5 is comparable to or better than JENDL-4.0 or JENDL-4.0/HE, ENDF/B-VIII.0 and JEFF-3.3.
Ohshima, Hiroyuki; Morishita, Masaki*; Aizawa, Kosuke; Ando, Masanori; Ashida, Takashi; Chikazawa, Yoshitaka; Doda, Norihiro; Enuma, Yasuhiro; Ezure, Toshiki; Fukano, Yoshitaka; et al.
Sodium-cooled Fast Reactors; JSME Series in Thermal and Nuclear Power Generation, Vol.3, 631 Pages, 2022/07
This book is a collection of the past experience of design, construction, and operation of two reactors, the latest knowledge and technology for SFR designs, and the future prospects of SFR development in Japan. It is intended to provide the perspective and the relevant knowledge to enable readers to become more familiar with SFR technology.
Kunieda, Satoshi; Iwamoto, Osamu; Iwamoto, Nobuyuki; Minato, Futoshi; Okamoto, Tsutomu; Sato, Tatsuhiko; Nakashima, Hiroshi; Iwamoto, Yosuke; Iwamoto, Hiroki; Kitatani, Fumito; et al.
JAEA-Conf 2016-004, p.41 - 46, 2016/09
Neutron- and proton-induced cross-section data are required in a wide energy range beyond 20 MeV, for the design of accelerator applications. New evaluations are performed with recent knowledge in the optical and pre-equilibrium model calculations. We also evaluated cross-sections for p+
Li and p+
Be which have been highly requested from a medical field. The present high-energy nuclear data library, JENDL-4.0/HE, includes evaluated cross-sections for incident neutrons and protons up to 200 MeV (for about 130 nuclei). We overview substantial features of the library, i.e., (1) systematic evaluation with CCONE code, (2) challenges for evaluations of light nuclei and (3) inheritance of JENDL-4.0 and JENDL/HE-2007. In this talk, we also focus on the results of benchmark calculation for neutronics to show performance of the present library.
Suzuki, Takashi; Minakawa, Masayuki*; Amano, Hikaru; Togawa, Orihiko
Nuclear Instruments and Methods in Physics Research B, 268, p.1229 - 1231, 2010/04
Times Cited Count：26 Percentile：85.04(Instruments & Instrumentation)no abstracts in English
Otosaka, Shigeyoshi; Tanaka, Takayuki; Togawa, Orihiko; Amano, Hikaru; Karasev, E. V.*; Minakawa, Masayuki*; Noriki, Shinichiro*
Journal of Oceanography, 64(6), p.911 - 923, 2008/12
Times Cited Count：23 Percentile：46.85(Oceanography)Transport processes of particulate organic carbon (POC) were inferred from sediment trap experiments in the three regions of the Japan Sea (western and eastern Japan Basin and Yamato Basin) and radiocarbon measurement. Annual mean 
C/
C isotopic ratio decreased with depth and the vertical changes in the isotopic signature were considered to indicate mixing of two fractions; labile POC produced in the surface and refractory POC. From seasonal variations of POC flux of the two fractions, transport processes of POC in the Japan Sea were summarized as follows: (1) In the Japan Basin, both labile and refractory POC were supplied in spring and a reservoir of refractory POC was formed, and (2) in the Yamato Basin, larger amount of refractory POC were carried the interior and accumulated rapidly.
Yamano, Naoki*; Katakura, Junichi; Kato, Kiyoshi*; Igashira, Masayuki*
Proceedings of International Conference on Nuclear Data for Science and Technology (ND 2007), Vol.2, p.825 - 828, 2008/05
A nuclear data processing and utilization system has been developed as a modular code system of the integrated nuclear data utilization system for innovative nuclear energy system. The system is able to handle evaluated nuclear data in ENDF-6 format to generate point-wise and group-wise cross sections in several formats, and has a capability to perform criticality and shielding benchmarks. An overview of the integrated nuclear data utilization system and the scheme of cross-section generation and benchmark procedure in the system have been described as well as future development plan based on the system.
Aramaki, Takafumi*; Togawa, Orihiko; Otosaka, Shigeyoshi; Suzuki, Takashi; Amano, Hikaru; Tanaka, Takayuki; Senju, Tomoharu*; Minakawa, Masayuki*
JAEA-Conf 2008-005, p.149 - 152, 2008/03
no abstracts in English
Chinone, Shumpei*; Ishizawa, Akito*; Tokuhiro, Koji*; Nakatsubo, Koichi*; Amano, Masayuki*; Hase, Yoshihiro; Narumi, Issei; Tanaka, Atsushi
JAEA-Review 2007-060, JAEA Takasaki Annual Report 2006, P. 83, 2008/03
no abstracts in English
Suzuki, Takashi; Minakawa, Masayuki*; Amano, Hikaru; Togawa, Orihiko
Dai-10-Kai AMS Shimpojiumu Hokokushu, p.147 - 150, 2008/00
no abstracts in English
Igashira, Masayuki*; Watanabe, Yukinobu*; Fukahori, Tokio; Okumura, Keisuke; Katakura, Junichi; Chiba, Satoshi; Shibata, Keiichi; Yamano, Naoki*; Nakagawa, Tsuneo; Odano, Naoteru*; et al.
Nihon Genshiryoku Gakkai Wabun Rombunshi, 6(1), p.85 - 96, 2007/03
This technical note summarizes research activities on nuclear data carried out by Japanese Nuclear Data Committee (JNDC) during the fiscal years of 2003 and 2004. During this period, the nuclear data files for special purposes (JENDL-HE-2004 and JENDL-PD-2004) were released. Other activities are described: analysis of post nuclear fuel irradiation experiments, nuclear chart and nuclear data evaluation for astrophysics.
Chinone, Shumpei*; Hanaoka, Yasushi*; Tokuhiro, Koji*; Nakatsubo, Koichi*; Amano, Masayuki*; Hase, Yoshihiro; Tanaka, Atsushi; Narumi, Issei
JAEA-Review 2006-042, JAEA Takasaki Annual Report 2005, P. 90, 2007/02
no abstracts in English
Igashira, Masayuki*; Shibata, Keiichi; Takano, Hideki*; Yamano, Naoki*; Matsunobu, Hiroyuki*; Kitao, Kensuke*; Katakura, Junichi; Nakagawa, Tsuneo; Hasegawa, Akira; Iwasaki, Tomohiko*; et al.
Nihon Genshiryoku Gakkai Wabun Rombunshi, 3(1), p.128 - 139, 2004/03
no abstracts in English
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.
Takehisa, Masaaki*; Tagawa, Seiichi*; Kashiwagi, Masayuki*; Tominaga, Hiroshi*; Ishikawa, Isamu*; Ooka, Norikazu; Kamada, Toshimitsu*; Hosobuchi, Kazunari*; Makuuchi, Keizo; Takeshita, Hidefumi; et al.
Genshiryoku Riyo No Keizai Kibo; NSA/Commentaries, No.9, 139 Pages, 2001/01
no abstracts in English
Kishimoto, Hiroshi; Fujiwara, M.*; Tamano, T.*; Nagami, Masayuki
Purazuma, Kaku Yugo Gakkai-Shi, 76(1), p.19 - 20, 2000/01
no abstracts in English
*; Fujiwara, M.*; Tamano, T.*; Nagami, Masayuki
Purazuma, Kaku Yugo Gakkai-Shi, 74(7), p.768 - 769, 1998/07
no abstracts in English
Otosaka, Shigeyoshi; Togawa, Orihiko; Tanaka, Takayuki; Amano, Hikaru; Minakawa, Masayuki*
no journal, ,
In order to understand biogeochemical cycles of particulate materials in the deep part of the Japan Sea, we assessed processes and a time scale of transport of particulate materials by measurements of particulate lead-210 (210Pb) and organic radiocarbon (14C) in settling particles collected in three regions of the Japan Sea; the western Japan Basin (WJB), the eastern Japan Basin (EJB) and the Yamato Basin (YB). Values of delta-14C in settling particles collected at 1 km depth ranged -13
22 per mill, and there were little differences in delta-14C between sampling stations. In the YB, delta-14C values of settling particles collected in the bottom layer (about 200 m above the bottom) were similar to those in 1 km depth. On the other hand, the delta-14C values in bottom layer in the WJB and EJB were about 55 per mill smaller than those at shallower layers. These results in indicated that the deep part of the Japan Basin had a larger time scale of POC cycle than the Yamato Basin. By a comparison of mass balance of 210Pb between the WJB and EJB, it was estimated that about 60% of particulate 210Pb supplied to the WJB exported horizontally to the EJB.
Otosaka, Shigeyoshi; Amano, Hikaru; Tanaka, Takayuki; Togawa, Orihiko; Noriki, Shinichiro*; Kaba, Masato*; Minakawa, Masayuki*
no journal, ,
In order to understand biogeochemical cycles of particulate materials in the deep part of the Japan Sea, the authors assessed the processes and a time scale of transport of particulate materials by measurements of organic radiocarbon (C-14) in settling/suspended particles collected in three regions of the Japan Sea; the northwestern, northeastern and southeastern regions. Isotopic ratios of C-14 in settling particles collected at 1 km depth showed little differences between the sampling regions. In the southeastern region, isotopic ratios of C-14 of settling particles collected in the bottom layer (about 0.5 km above the bottom) were similar to those in 1 km depth. On the other hand, the ratios in bottom layer of the northern regions were smaller than those at the shallower layers significantly. These results in indicated that there are different origins of POC between the northern and southeastern regions of the Japan Sea.
Suzuki, Takashi; Amano, Hikaru; Togawa, Orihiko; Minakawa, Masayuki*
no journal, ,
no abstracts in English
Chinone, Shumpei*; Hanaoka, Yasushi*; Tokuhiro, Koji*; Nakatsubo, Koichi*; Amano, Masayuki*; Hase, Yoshihiro; Tanaka, Atsushi; Narumi, Issei
no journal, ,
no abstracts in English
