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JAEA Reports

Development of plasma neutralizer using DC arc discharge

Kashiwagi, Mieko; Okumura, Yoshikazu; Hanada, Masaya; Morishita, Takatoshi; Watanabe, Kazuhiro; Orita, Yoshitaka*; Horiike, Hiroshi*; Ido, Shuji*

JAERI-Tech 2001-046, 19 Pages, 2001/06

JAERI-Tech-2001-046.pdf:1.79MB

no abstracts in English

Journal Articles

Negative hydrogen ion source for tokamak neutral beam injector

Okumura, Yoshikazu; Fujiwara, Yukio; Kashiwagi, Mieko; Kitagawa, Tadashi*; Miyamoto, Kenji; Morishita, Takatoshi; Hanada, Masaya; Takayanagi, Tomohiro; Taniguchi, Masaki; Watanabe, Kazuhiro

Review of Scientific Instruments, 71(2), p.1219 - 1224, 2000/02

 Times Cited Count:36 Percentile:84.06(Instruments & Instrumentation)

no abstracts in English

Journal Articles

Development of a high brightness negative hydrogen ion source

; Okumura, Yoshikazu; Miyamoto, Naoki*; Kusano, Joichi; Mizumoto, Motoharu

Review of Scientific Instruments, 67(3), p.1051 - 1053, 1996/03

 Times Cited Count:1 Percentile:23.5(Instruments & Instrumentation)

no abstracts in English

Journal Articles

Development of a 500 keV, 22A D$$^{-}$$ ion source for the neutral beam injector for JT-60U

Okumura, Yoshikazu; Fujiwara, Yukio; Honda, Atsushi; Inoue, Takashi; Kuriyama, Masaaki; Miyamoto, Kenji; Miyamoto, Naoki*; Mogaki, Kazuhiko; Nagase, Akihito*; Ohara, Yoshihiro; et al.

Review of Scientific Instruments, 67(3), p.1018 - 1020, 1996/03

 Times Cited Count:29 Percentile:86.28(Instruments & Instrumentation)

no abstracts in English

Journal Articles

Correlation between negative hydrogen ion production and work function of plasma grid in a cesium-introduced volume-production-type negative hydrogen ion source

Shinto, Katsuhiro*; Okumura, Yoshikazu; *; Wada, Motoi*; *; Inoue, Takashi; Miyamoto, Kenji; Nagase, Akihito*

Japanese Journal of Applied Physics, 35(3), p.1894 - 1900, 1996/00

 Times Cited Count:20 Percentile:68.19(Physics, Applied)

no abstracts in English

Journal Articles

Multi-ampere D$$^{-}$$ ion source for negative-ion-based neutral beam injector

Okumura, Yoshikazu; Fumelli, M.*; Hanada, Masaya; Jequier, F.*; Pamela, J.*; Watanabe, Kazuhiro

Fusion Technology 1992, Vol.1, p.594 - 598, 1994/00

no abstracts in English

Journal Articles

Negative ion based neutral beam injector for JT-60U

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

Journal Articles

Development of a 500keV,22A D$$^{-}$$ ion source for neutral beam injectors

Okumura, Yoshikazu; Hanada, Masaya; Inoue, Takashi; *; Miyamoto, Kenji; Mizuno, Makoto; Ohara, Yoshihiro; Tanaka, Masanobu*; Watanabe, Kazuhiro

Dai-4-Kai Ryushisen No Sentanteki Oyo Gijutsu Ni Kansuru Shimpojiumu, p.51 - 54, 1993/00

no abstracts in English

Journal Articles

Long pulse operation of a cesium-seeded multicusp H$$^{-}$$ ion source

Okumura, Yoshikazu; Hanada, Masaya; Inoue, Takashi; Mizuno, Makoto; Ohara, Yoshihiro; Suzuki, Yasuo*; Tanaka, Hideki*; Tanaka, M.*; Watanabe, Kazuhiro

Review of Scientific Instruments, 63(4), p.2708 - 2710, 1992/04

 Times Cited Count:24 Percentile:86.6(Instruments & Instrumentation)

no abstracts in English

Journal Articles

Effect of filament material and area on the extracted current from a volume H$$^{-}$$ ion source

Inoue, Takashi; *; Ohara, Yoshihiro; Okumura, Yoshikazu; M.Bacal*; P.Berlemont*

Plasma Sources Sci. Technol., 1, p.75 - 81, 1992/00

 Times Cited Count:13 Percentile:49.03(Physics, Fluids & Plasmas)

no abstracts in English

Journal Articles

Development of a high current H$$^{-}$$/D$$^{-}$$ ion source

Okumura, Yoshikazu

Proc. of the 1st Meeting on the Ion Engineering Society of Japan, p.23 - 30, 1992/00

no abstracts in English

Journal Articles

Reduction of the operating gas pressure in a cesium-seeded large multicusp H$$^{-}$$ ion source

Okumura, Yoshikazu; Hanada, Masaya; Inoue, Takashi; Mizuno, Makoto; Ohara, Yoshihiro; Pamela, J.*; Suzuki, Yasuo*; Tanaka, Hideki*; Watanabe, Kazuhiro

Production and Application of Light Negative Ions, p.35 - 40, 1991/00

no abstracts in English

Journal Articles

Effect of cesium vapor injection in a large volume H$$^{-}$$ ion source

Okumura, Yoshikazu; Hanada, Masaya; Inoue, Takashi; Kojima, Hiroaki; *; Watanabe, Kazuhiro

Proc. of the 13th Symp. on Ion Sources and Ion-Assisted Technology,I, p.149 - 152, 1990/06

no abstracts in English

JAEA Reports

Measurement of impurities in a volume produced H-ion beam

Okumura, Yoshikazu; Hanada, Masaya; Kojima, Hiroaki; *; Ohara, Hiroshi

JAERI-M 89-090, 14 Pages, 1989/07

JAERI-M-89-090.pdf:0.8MB

no abstracts in English

Journal Articles

A high current volume H$$^{-}$$ion source with multi-aperture extractor

Okumura, Yoshikazu; Horiike, Hiroshi; Inoue, Takashi; Kurashima, Toru; Matsuda, Shinzaburo; Ohara, Yoshihiro; Tanaka, Shigeru

4th Int.Symp.on Production and Neutralization of Negative Ions and Beams, p.309 - 318, 1987/00

no abstracts in English

JAEA Reports

Development of a Volume H$$^{-}$$ Ion Source for Neutral Beam Injector

; Ohara, Yoshihiro; ;

JAERI-M 84-098, 23 Pages, 1984/05

JAERI-M-84-098.pdf:0.82MB

no abstracts in English

JAEA Reports

High Accuracy Measurements of Bulk Densities of ThO$$_{2}$$ and (Th、U)O$$_{2}$$ Microspheres by Mercury Pycnometry

; ; Shiba, Koreyuki

JAERI-M 83-168, 20 Pages, 1983/11

JAERI-M-83-168.pdf:0.8MB

no abstracts in English

Oral presentation

Advanced nuclear and renewables in Japan

Hayafune, Hiroki

no journal, , 

Synergy of Nuclear and Renewable Energy is important for future sustainable society and net zero of carbon energy. Important R&D is; (1) Development of advanced reactors for the reduction of the volume and radiotoxicity and recycling of radioactive waste. (2) Development of Integrated nuclear energy and renewable energy. And for the nuclear technology beyond the energy use also contributes to the society. JAEA is trying these R&Ds.

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