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Fukuda, Mitsuhiro; Ito, Hisayoshi; Oshima, Takeshi; Saido, Masahiro; Tanaka, Atsushi
Charged Particle and Photon Interactions with Matter, p.813 - 859, 2003/11
An ion beam has been widely applied to a variety of research fields of materials, space, and bio-sciences. Notable results, which were hard to obtain in applications of a 
ray and an electron beam, have been produced by the ion beam application. Ion beams interacting with matter have such superior properties as highly localized ionization and excitation, production of secondary particles, implantation of different atoms, and nuclear transmutation of constituent atoms. Skillful utilization of the ion beam properties makes remarkable progress in creation of new materials and precise investigation of matters. The ion beam irradiation research facility, TIARA, was established in 1993 at JAERI for extensive applications of ion beams. An accelerator complex provides light to heavy ion beams with a broad energy range from keV to GeV. Various ion beam technologies pioneering the ion beam applications have been developed at TIARA. In this paper, new applications of accelerated ion beams to material, space, and biological science and engineering carried out mainly at TIARA are reviewed.
Masaki, Kei; Yagyu, Junichi; Arai, Takashi; Kaminaga, Atsushi; Kodama, Kozo; Miya, Naoyuki; Ando, Toshiro; Hiratsuka, Hajime; Saido, Masahiro
Fusion Science and Technology (JT-60 Special Issue), 42(2-3), p.386 - 395, 2002/09
Times Cited Count：9 Percentile：50.57(Nuclear Science & Technology)The wall conditioning of JT-60U consists of the 300
C baking, He-TDC, He-GDC, tokamak discharge cleaning and boronization. Using these methods, total pressure of the vacuum vessel reached finally 10
10
Pa. The oxygen impurity was decreased to 0.5%. The experience with the carbon-based first wall showed that taper shaping is effective to reduce the local heat concentration to the tile edges. The observed poloidal asymmetric deposition of carbon on the divertor region implies that the carbon impurity produced in the outer divertor contributes to the deposition on the inner divertor. In 1992 and 1993, the B
C converted CFC tiles were installed in the outer divertor to reduce chemical sputtering of CFC tiles and oxygen impurity. The reduction was successfully demonstrated with the BC converted CFC tiles. In order to understand the tritium behavior in JT-60U, tritium in the first wall and the exhaust gas were measured. The estimated tritium inventory in the first wall was 50% of the generated tritium.
Harada, Satoshi*; Tamakawa, Yoshiharu*; Ishii, Keizo*; Tanaka, Akira*; Sato, Takahiro; Matsuyama, Shigeo*; Yamazaki, Hiromichi*; Kamiya, Tomihiro; Sakai, Takuro; Arakawa, Kazuo; et al.
Nuclear Instruments and Methods in Physics Research B, 189(1-4), p.437 - 442, 2002/04
Times Cited Count：1 Percentile：12.41(Instruments & Instrumentation)To study the interactions between the induction of radiation-induced apoptosis and trace elements kinetics, human leukemia cells were irradiated in vitro by 
Co rays, after which the cells were evaluated for the detection of apoptosis and trace element imaging was carried out. The frequency of apoptosis was obtained by microscopic assay using TUNEL staining. The trace element distribution in the cell was determined by micro-PIXE. In the early phase of apoptosis, the maximum level of Fe accumulation was observed in the cell stroma. In the mid to end phase, Fe accumulation was diminished, and instead, Ca accumulation increased and Zn decreased in the nucleus. There appear to be two steps for the development of apoptosis: (1) the signaling from cell stroma to nucleus by Fe or an Fe-containing enzyme; and (2) the degeneration of the nucleus by Ca-dependent enzyme, and release of Zn from digested nucleus. Those strong accumulations may be new markers for apoptosis.
Saido, Masahiro
Hoshasen To Sangyo, (81), p.55 - 57, 1999/03
no abstracts in English
Yamaguchi, Y.*; ; Hino, Tomoaki*; Masaki, Kei; Saido, Masahiro; Ando, Toshiro; D.G.Whyte*; C.Wong*
Journal of Nuclear Materials, 266-269, p.1257 - 1260, 1999/00
Times Cited Count：21 Percentile：80.23(Materials Science, Multidisciplinary)no abstracts in English
Saido, Masahiro; Fukuda, Mitsuhiro; Arakawa, Kazuo; Tajima, Satoshi; Sunaga, Hiromi; Yotsumoto, Keiichi; Kamiya, Tomihiro; Tanaka, Ryuichi; Hirao, Toshio; Nashiyama, Isamu; et al.
Proceedings of 1999 IEEE Nuclear and Space Radiation Effects Conference, p.117 - 122, 1999/00
no abstracts in English
; ; ; Hino, Tomoaki*; Ogiwara, Norio; Yagyu, Junichi; Saido, Masahiro
Vacuum, 53(1-2), p.309 - 312, 1999/00
Times Cited Count：3 Percentile：18.71(Materials Science, Multidisciplinary)no abstracts in English
; Masaki, Kei; ; Morimoto, Masaaki*; ; Sakurai, Shinji; ; Saido, Masahiro; Inoue, Masahiko*; ; et al.
JAERI-Tech 98-049, 151 Pages, 1998/11
no abstracts in English
Masaki, Kei; ; ; Morimoto, Masaaki*; ; Hosogane, Nobuyuki; Sakurai, Shinji; Saido, Masahiro
Purazuma, Kaku Yugo Gakkai-Shi, 74(9), p.1048 - 1053, 1998/09
no abstracts in English
Sakurai, Shinji; Hosogane, Nobuyuki; Masaki, Kei; ; ; ; ; Shimizu, Katsuhiro; Akino, Noboru; Miyo, Yasuhiko; et al.
Fusion Engineering and Design, 39-40, p.371 - 376, 1998/00
Times Cited Count：5 Percentile：43.91(Nuclear Science & Technology)no abstracts in English
Tamai, Hiroshi; Kikuchi, Mitsuru; Arai, Takashi; ; ; Saido, Masahiro; Kimura, Toyoaki; Nagami, Masayuki; Shimizu, Masatsugu; ; et al.
Fusion Engineering and Design, 38(4), p.429 - 439, 1998/00
Times Cited Count：3 Percentile：31.46(Nuclear Science & Technology)no abstracts in English
Masaki, Kei; ; Morimoto, Masaaki*; ; ; Hosogane, Nobuyuki; Saido, Masahiro
Fusion Technology 1998, p.67 - 70, 1998/00
no abstracts in English
; ; Masaki, Kei; Hosogane, Nobuyuki; Sakurai, Shinji; Morimoto, Masaaki*; Miyo, Yasuhiko; Hiratsuka, Hajime; Akino, Noboru; ; et al.
Proceedings of 17th IEEE/NPSS Symposium Fusion Engineering (SOFE'97), 2, p.365 - 368, 1998/00
no abstracts in English
Saido, Masahiro; Fukuda, Mitsuhiro; Arakawa, Kazuo; Tajima, Satoshi; Sunaga, Hiromi; Yotsumoto, Keiichi; Tanaka, Ryuichi
Proceedings of 3rd International Workshop on Radiation Effects on Semiconductor Devices for Space Application, p.183 - 188, 1998/00
no abstracts in English
Kaminaga, Atsushi; Arai, Takashi; ; ; Saido, Masahiro
Shinku, 41(10), p.846 - 850, 1998/00
no abstracts in English
C-carbon fiber composite ceramics as plasma facing materials in nuclear fusion reactor, part 3; Heat resistance evaluation by electron beam irradiation and by in situ plasma discharge in JT-60; Saido, Masahiro; Nakamura, Kazuyuki; Akiba, Masato; ; Dairaku, Masayuki; ; ; ; Goto, Yoshitaka*
Nihon Seramikkusu Kyokai Gakujutsu Rombunshi, 105(1228), p.1091 - 1098, 1997/12
Times Cited Count：1 Percentile：18.40(Materials Science, Ceramics)no abstracts in English
Yagyu, Junichi; Ogiwara, Norio; Saido, Masahiro; Okabe, Tomokazu; Hiratsuka, Hajime; Miyo, Yasuhiko; Naramoto, Hiroshi; Yamamoto, Shunya; Takeshita, Hidefumi; Aoki, Yasushi; et al.
Journal of Nuclear Materials, 241-243, p.579 - 584, 1997/00
Times Cited Count：16 Percentile：75.19(Materials Science, Multidisciplinary)no abstracts in English
C-carbon fiber composite ceramics as plasma facing materials in nuclear fusion reactor, 3; Heat resistance evaluation by electron beam irradiation and by in situ plasma discharge in JT-60Jimbo, Ryutaro*; Saido, Masahiro; Nakamura, Kazuyuki; Akiba, Masato; ; Dairaku, Masayuki; ; ; ;
Journal of the Ceramic Society of Japan, International Edition, 105, p.1179 - 1187, 1997/00
no abstracts in English
Masaki, Kei; ; Ando, Toshiro; Saido, Masahiro; Shimizu, Masatsugu; Hayashi, Takumi; Okuno, Kenji
Fusion Engineering and Design, 31, p.181 - 187, 1996/00
Times Cited Count：22 Percentile：84.46(Nuclear Science & Technology)no abstracts in English
Sakurai, Shinji; Hosogane, Nobuyuki; ; Masaki, Kei; ; ; ; Takahashi, Shoryu*; Saido, Masahiro; Inoue, Masahiko*; et al.
Fusion Technology 1996, 0, 4 Pages, 1996/00
no abstracts in English
