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Journal Articles

Stability of magnesite and its high-pressure form in the lowermost mantle

Isshiki, Maiko*; Irifune, Tetsuo*; Hirose, Kei*; Ono, Shigeaki*; Oishi, Yasuo*; Watanuki, Tetsu; Nishibori, Eiji*; Takata, Masaki*; Sakata, Makoto*

Nature, 427(6969), p.60 - 63, 2004/01

 Times Cited Count:205 Percentile:96.47(Multidisciplinary Sciences)

no abstracts in English

Journal Articles

Anomalous spin density distribution in CeB$$_{6}$$

Saito, Masahiro*; Okada, Noriko*; Nishibori, Eiji*; Takagiwa, Hiroyuki*; Yokoo, Tetsuya*; Nishi, Masakazu*; Kakurai, Kazuhisa; Kunii, Satoru*; Takata, Masaki*; Sakata, Makoto*; et al.

Journal of the Physical Society of Japan, 71(10), p.2369 - 2372, 2002/10

 Times Cited Count:12 Percentile:59.94(Physics, Multidisciplinary)

no abstracts in English

Journal Articles

Neutronic optimization of premoderator and reflector for decoupled hydrogen moderator in 1MW spallation neutron source

Harada, Masahide; Teshigawara, Makoto; Kai, Tetsuya; Sakata, Hideaki*; Watanabe, Noboru; Ikeda, Yujiro

Journal of Nuclear Science and Technology, 39(8), p.827 - 837, 2002/08

 Times Cited Count:18 Percentile:74.81(Nuclear Science & Technology)

For a decoupled hydrogen (super critical) moderator, optimization studies have been performed on a premoderator and reflector material (Pb, Be, Fe and Hg) together with the decoupling energy to realize a higher neutronic performance. The result indicated that the best neutronic performance could be obtained for a decoupled H$$_2$$ moderator in a Pb reflector by optimizing the premoderator and adopting an appropriate decoupling energy, even compared with optimized one in a Be reflector.

Journal Articles

Optimization of coupled hydrogen moderator for a short pulse spallation source

Kai, Tetsuya; Teshigawara, Makoto; Watanabe, Noboru; Harada, Masahide; Sakata, Hideaki*; Ikeda, Yujiro

Journal of Nuclear Science and Technology, 39(2), p.120 - 128, 2002/02

 Times Cited Count:11 Percentile:60.05(Nuclear Science & Technology)

no abstracts in English

JAEA Reports

Neutronic characteristics of coupled moderator proposed in integrated model

Teshigawara, Makoto; Meigo, Shinichiro; Sakata, Hideaki*; Kai, Tetsuya; Harada, Masahide; Ikeda, Yujiro; Watanabe, Noboru

JAERI-Research 2001-022, 33 Pages, 2001/05

JAERI-Research-2001-022.pdf:5.16MB

no abstracts in English

JAEA Reports

Premoderator optimization of decoupled hydrogen moderator

Harada, Masahide; Teshigawara, Makoto; Kai, Tetsuya; Sakata, Hideaki*; Watanabe, Noboru; Ikeda, Yujiro

JAERI-Research 2001-016, 32 Pages, 2001/03

JAERI-Research-2001-016.pdf:1.74MB

An optimization study on the premoderator, the reflector material choice and a length of the liner is carried out for the design of high performance decoupled hydrogen moderator. NMTC/JAM and MCNP-4C are used for the neutronics calculation. The result indicates that, assuming premoderator dimensions and decoupling energy is controlled, the decoupled hydrogen moderator with a premoderator can provide better pulse characteristics than that without the premoderator for a Be reflector. On the selection of the reflector material, it is clearly shown that Pb and Hg reflectors give merits in using the premoderator for higher intensity and reduction of energy deposition in moderator. It is also shown that a H2O premoderator provides a short tail while a D2O premoderator provides the high peak intensity. Minimum liner length is evaluated to be 20 cm from the viewpoint of neutronics.

Journal Articles

Optimization study of coupled hydrogen moderator with extended premoderator

Kai, Tetsuya; Teshigawara, Makoto; Watanabe, Noboru; Harada, Masahide; Sakata, Hideaki*; Ikeda, Yujiro

JAERI-Conf 2001-002, p.786 - 792, 2001/03

no abstracts in English

Journal Articles

Neutronic performance of decoupled poisoned and unpoisoned composite moderators for high resolution experiments

Kai, Tetsuya; Harada, Masahide; Watanabe, Noboru; Teshigawara, Makoto; Sakata, Hideaki*; Ikeda, Yujiro

JAERI-Conf 2001-002, p.868 - 872, 2001/03

no abstracts in English

Journal Articles

Proton energy dependence of slow neutron intensity

Teshigawara, Makoto; Harada, Masahide; Watanabe, Noboru; Kai, Tetsuya; Sakata, Hideaki*; Ikeda, Yujiro; Oi, Motoki*

JAERI-Conf 2001-002, p.835 - 847, 2001/03

no abstracts in English

Journal Articles

A Proposal to use mercury as a reflector material for decoupled moderator system

Teshigawara, Makoto; Harada, Masahide; Watanabe, Noboru; Kai, Tetsuya; Sakata, Hideaki*; Ikeda, Yujiro

JAERI-Conf 2001-002, p.722 - 733, 2001/03

no abstracts in English

Journal Articles

Optimization of decoupled hydrogen moderator

Harada, Masahide; Teshigawara, Makoto; Kai, Tetsuya; Sakata, Hideaki*; Watanabe, Noboru; Ikeda, Yujiro

JAERI-Conf 2001-002, p.793 - 807, 2001/03

no abstracts in English

JAEA Reports

Premoderator extension effect for a decoupled hydrogen moderator

Harada, Masahide; Teshigawara, Makoto; Kai, Tetsuya; Sakata, Hideaki*; Watanabe, Noboru; Ikeda, Yujiro

JAERI-Research 2000-014, p.40 - 0, 2000/03

JAERI-Research-2000-014.pdf:2.99MB

no abstracts in English

Journal Articles

Recent progress in design sutdy of Japanese spallation neutron source

Watanabe, Noboru; Teshigawara, Makoto; Kai, Tetsuya; Harada, Masahide; Sakata, Hideaki*; Ikeda, Yujiro; Kaminaga, Masanori; Hino, Ryutaro; Oyama, Yukio

Proceedings of 8th International Conference on Nuclear Engineering (ICONE-8) (CD-ROM), p.12 - 0, 2000/00

no abstracts in English

Journal Articles

JT-60 Plasma Control System

Kurihara, Kenichi; Kimura, Toyoaki; Yonekawa, Izuru; ; Matsukawa, Makoto; ; Kawamata, Yoichi; Totsuka, Toshiyuki; Akasaka, Hiromi; Sakata, Shinya

Fusion Engineering and Design, 11, p.441 - 454, 1990/00

no abstracts in English

14 (Records 1-14 displayed on this page)
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