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Li(p,n) reactions using a time-of-flight methodIwamoto, Yosuke; Hagiwara, Masayuki*; Satoh, Daiki; Araki, Shohei*; Yashima, Hiroshi*; Sato, Tatsuhiko; Masuda, Akihiko*; Matsumoto, Tetsuro*; Nakao, Noriaki*; Shima, Tatsushi*; et al.
Nuclear Instruments and Methods in Physics Research A, 804, p.50 - 58, 2015/12
Times Cited Count：23 Percentile：87.12(Instruments & Instrumentation)We have measured neutron energy spectra for the 80, 100 and 296 MeV proton incident reactions at the RCNP cyclotron facility using time-of-flight method. The neutron energy spectrum consisted of the peak and continuum parts and the peak intensity was 0.9-1.1 
10
neutrons/sr/
C. The ratio of peak intensity of the spectrum to the total intensity was between 0.38 and 0.48. To consider the correction required to derive a response in the peak region from the measured total response for neutron monitors, we proposed the subtraction method using energy spectra between 0
and 25. The normalizing factor k against the 25 neutron fluence that equalizes the 0 neutron fluence in the continuum region was from 0.74 to 1.02. With our previous results, we have obtained data for characterization of monoenergetic neutron field for the Li(p,n) reaction with 80
389 MeV protons at the RCNP cyclotron facility.
Nakatsuji, Satoru*; Kuga, Kentaro*; Kimura, Kenta*; Satake, Ryuta*; Katayama, Naoyuki*; Nishibori, Eiji*; Sawa, Hiroshi*; Ishii, Rieko*; Hagiwara, Masayuki*; Bridges, F.*; et al.
Science, 336(6081), p.559 - 563, 2012/05
Times Cited Count：114 Percentile：95.24(Multidisciplinary Sciences)Frustrated magnetic materials can remain disordered to the lowest temperatures. Such is the case for Ba
CuSb
O
, which is magnetically anisotropic at the atomic scale but curiously isotropic on mesoscopic length and time scales. We find that the frustration on the triangular lattice is imprinted in a nanostructured honeycomb lattice of Cu
ions that resists a coherent static Jahn-Teller distortion. The resulting two-dimensional random-bond spin-1/2 system on the honeycomb lattice has a broad spectrum of spin-dimer like excitations and low-energy spin degrees of freedom that retain.
Nishitani, Takeo; Tanigawa, Hiroyasu; Nozawa, Takashi; Jitsukawa, Shiro; Nakamichi, Masaru; Hoshino, Tsuyoshi; Yamanishi, Toshihiko; Baluc, N.*; M
slang, A.*; Lindou, R.*; et al.
Journal of Nuclear Materials, 417(1-3), p.1331 - 1335, 2011/10
Times Cited Count：14 Percentile：71.96(Materials Science, Multidisciplinary)As a part of the Broader Approach (BA) activities, the research and development on blanket related materials and tritium technology have been initiated toward DEMO by Japan and EU. Recently, those five R&D items have progressed substantially in Japan and EU. As a preparatory work aiming at the RAFM steel muss-production development, a 5-ton heat of RAFM steel (F82H) was procured with the Electro Slag Re-melting as a secondary melting. The result of the double notch tensile test method for the NITE-SiC
/SiC specimen indicated notch insensitivity and very minor size effect on proportional limit tensile stress and fracture strength. For the fabrication technology development of beryllide neutron multiplayer pebbles, Be- Ti inter-metallic pebbles have been sintered directly from the mixed powder of Be and Ti in Japan.
Araki, Masanori; Hayashi, Kimio; Tobita, Kenji; Nishitani, Takeo; Tanigawa, Hiroyasu; Nozawa, Takashi; Yamanishi, Toshihiko; Nakamichi, Masaru; Hoshino, Tsuyoshi; Ozeki, Takahisa; et al.
Purazuma, Kaku Yugo Gakkai-Shi, 86(4), p.231 - 239, 2010/04
The Broader Approach Activities, which support the ITER Project and implement activities to aim early realization of fusion energy, is an EU-Japan collaborative project to carry out various kinds of researches and developments during the period of the ITER construction phase. In this special topic, achievements and prospects of the projects on the International Fusion Energy Research Centre (IFERC) is described.
Nishitani, Takeo; Tanigawa, Hiroyasu; Jitsukawa, Shiro; Nozawa, Takashi; Hayashi, Kimio; Yamanishi, Toshihiko; Tsuchiya, Kunihiko; Mslang, A.*; Baluc, N.*; Pizzuto, A.*; et al.
Journal of Nuclear Materials, 386-388, p.405 - 410, 2009/04
Times Cited Count：31 Percentile：87.96(Materials Science, Multidisciplinary)The establishment of the breeding blanket technology is one of the most important engineering issues on the DEMO development. For the DEMO blanket, developments of the structural materials and functional materials such as tritium breeder and neutron multiplier. Which should be used under the savior circumstance such as high neutron fluence, high temperature and strong magnetic field, are urgent issues. In the Broader Approach activities initiated by EU and Japan, developments of reduced activation ferritic martensitic steels as a DEMO blanket structural material, SiC/SiC composites, advanced tritium breeders and neutron multiplier for DEMO blankets, are planed as common interest issues of EU and Japan. This paper describes the overview of the development program.
and its carbon isotope analyses in the semi-natural woods on the campus of Hokkaido UniversityFujiyoshi, Ryoko*; Haraki, Yukihide*; Sumiyoshi, Takashi*; Amano, Hikaru
JAEA-Conf 2008-003, p.79 - 83, 2008/04
Carbon dioxide in soil air has been monitored in the holes at 30 and 100 cm in depth under a cool-temperate deciduous stand on the campus of Hokkaido University since June in 2007. Air samples were collected periodically from the holes, and also from the atmosphere in the woods (2 m in height from the soil surface). Carbon isotopic analyses of the CO samples were performed by AMS at the Mutsu Facility of the Japan Atomic Energy Agency (JAEA-AMS-MUTSU). Preliminary results show that CO in the woods including the air at 2 m in height may result from mixing of atmospheric air and soil components of various sources, such as CO from contemporary soil organic matter and old carbon of deep source to a varying degree depending on meteorological and biological conditions.
Ito, Takashi; Nishida, Nobuhiko*; Oishi, Kazuki; Higemoto, Wataru; Karaki, Yoshitomo*; Ishimoto, Hidehiko*
Journal of the Physical Society of Japan, 75(Suppl.), p.189 - 191, 2006/08
no abstracts in English
Mori, Masahiro; Shoji, Teruaki; Araki, Masanori; Saito, Keiji*; Senda, Ikuo; Omori, Junji*; Sato, Shinichi*; Inoue, Takashi; Ono, Isamu*; Kataoka, Takahiro*; et al.
Nihon Genshiryoku Gakkai-Shi, 44(1), p.16 - 89, 2002/01
no abstracts in English
Shimomura, Yasuo; Tsunematsu, Toshihide; Yamamoto, Shin; Maruyama, So; Mizoguchi, Tadanori*; Takahashi, Yoshikazu; Yoshida, Kiyoshi; Kitamura, Kazunori*; Ioki, Kimihiro*; Inoue, Takashi; et al.
Purazuma, Kaku Yugo Gakkai-Shi, 78(Suppl.), 224 Pages, 2002/01
no abstracts in English
Kuriyama, Masaaki; ; Araki, Masanori; ; Hanada, Masaya; Inoue, Takashi; Kawai, Mikito; Kazawa, Minoru; *; Kunieda, Shunsuke; et al.
Fusion Engineering and Design, 26, p.445 - 453, 1995/00
Times Cited Count：43 Percentile：95.65(Nuclear Science & Technology)no abstracts in English
Okumura, Yoshikazu; Araki, Masanori; Hanada, Masaya; Inoue, Takashi; Kunieda, Shunsuke; Kuriyama, Masaaki; Matsuoka, Mamoru; Mizuno, Makoto; Ohara, Yoshihiro; Tanaka, Masanobu*; et al.
Production and Neutralization of Negative Ions and Beams; AIP Conference Proceedings 287, p.839 - 848, 1994/00
no abstracts in English
Kuriyama, Masaaki; ; Araki, Masanori; ; Hanada, Masaya; Inoue, Takashi; Kawai, Mikito; Kazawa, Minoru; *; Kunieda, Shunsuke; et al.
15th IEEE/NPSS Symp. on Fusion Engineering,Vol. 1, 0, p.470 - 473, 1993/00
no abstracts in English
C-overlaid CFC/graphitesAndo, Toshiro; Yamamoto, Masahiro; Arai, Takashi; Kaminaga, Atsushi; ; Saido, Masahiro; *; ; Shimizu, Masatsugu; Akiba, Masato; et al.
Fusion Technology 1992, p.161 - 165, 1993/00
no abstracts in English
Dairaku, Masayuki; Akiba, Masato; Araki, Masanori; Inoue, Takashi; Mizuno, Makoto; Ohara, Yoshihiro; Okumura, Yoshikazu; Seki, Masahiro; Tanaka, Shigeru; Watanabe, Kazuhiro; et al.
NIFS-MEMO-3, 4 Pages, 1991/08
no abstracts in English
Ohara, Yoshihiro; Tanaka, Shigeru; Akiba, Masato; Araki, Masanori; Fujisawa, Noboru; Hanada, Masaya; Inoue, Takashi; *; Mizuno, Makoto; Okumura, Yoshikazu; et al.
JAERI-M 91-052, 176 Pages, 1991/03
no abstracts in English
Tanaka, Shigeru; ; Akiba, Masato; Araki, Masanori; Dairaku, Masayuki; Inoue, Takashi; Mizuno, Makoto; Okumura, Yoshikazu; Ohara, Yoshihiro; Seki, Masahiro; et al.
Review of Scientific Instruments, 62(3), p.761 - 771, 1991/03
Times Cited Count：16 Percentile：82.35(Instruments & Instrumentation)no abstracts in English
Tanaka, Shigeru; Ohara, Yoshihiro; Akiba, Masato; Araki, Masanori; Hanada, Masaya; Inoue, Takashi; Mizuno, Makoto; Okumura, Yoshikazu; Seki, Masahiro; Watanabe, Kazuhiro; et al.
Fusion Engineering and Design, 18, p.507 - 515, 1991/00
Times Cited Count：2 Percentile：31.89(Nuclear Science & Technology)no abstracts in English
Inoue, Takashi; Akiba, Masato; Araki, Masanori; Hanada, Masaya; *; Mizuno, Makoto; Okumura, Yoshikazu; Ohara, Yoshihiro; Seki, Masahiro; Tanaka, Shigeru; et al.
Fusion Engineering and Design, 18, p.369 - 376, 1991/00
Times Cited Count：3 Percentile：40.8(Nuclear Science & Technology)no abstracts in English
Ohara, Yoshihiro; Akiba, Masato; Araki, Masanori; Dairaku, Masayuki; Hanada, Masaya; Inoue, Takashi; Kojima, Hiroaki; Kuriyama, Masaaki; *; Matsuoka, Mamoru; et al.
JAERI-M 90-154, 119 Pages, 1990/09
no abstracts in English
Araki, Masanori; Dairaku, Masayuki; Inoue, Takashi; Komata, Masao; Kuriyama, Masaaki; Matsuda, Shinzaburo; Ogawa, Masuro; Ohara, Yoshihiro; Seki, Masahiro;
Fusion Engineering and Design, 9, p.231 - 236, 1989/00
no abstracts in English
