Development of high time- and spectral-resolved charge exchange recombination spectroscopy and fine structure of radial electric field in high-viscosity plasmas

• Project/Area Number: 20686061
• Research Category: Grant-in-Aid for Young Scientists (A)
• Allocation Type: Single-year Grants
• Research Field: Nuclear fusion studies
• Research Institution: Kyoto University
• Principal Investigator: KOBAYASHI Shinji Kyoto University, エネルギー理工学研究所, 助教 (70346055)
• Project Period (FY): 2008 – 2010
• Project Status: Completed (Fiscal Year 2010)
• Budget Amount: ¥18,070,000 (Direct Cost: ¥13,900,000、Indirect Cost: ¥4,170,000); Fiscal Year 2010: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000); Fiscal Year 2009: ¥7,670,000 (Direct Cost: ¥5,900,000、Indirect Cost: ¥1,770,000); Fiscal Year 2008: ¥9,230,000 (Direct Cost: ¥7,100,000、Indirect Cost: ¥2,130,000)
• Keywords: プラズマ計測 / プラズマ・核融合 / 荷電交換再結合分光 / エッシェル型レンズ分光器 / プラズマ回転

Research Abstract

A high spatial- and spectral-resolved charge exchange recombination spectroscopy (CXRS) has been developed aiming at improving the resolution of the CXRS measurement. A monochromator with a numerical aperture of F2.9 has been developed having a linear dispersion of 2.82x10^<-3>nm/pixel. This corresponds to the resolution of the rotation velocity of 1.6 km/s/pixel. The sightlines for CXRS in the three dimensional magnetic configuration have been designed having a good spatial resolution around Δρ=±0.05 even when the heating neutral beam is used for diagnostics. The initial result obtained in the Heliotron J NBI plasmas shows the ion temperature and the rotation velocity have been measured with high spatial and spectral (velocity) resolution.

Research Products

• [Journal Article] Plasma startup using neutral beam injection assisted by 2.45 GHz microwaves in Heliotron J (2011)
  • Author(s): S.Kobayashi, K.Nagasaki, S.Yamamoto, 他16名
  • Journal Title: Nuclear Fusion 51 Pages: 62002-62002
  • Peer Reviewed
• [Journal Article] Application of beam emissionspectroscopy to NBI plasmas of Heliotron J (2010)
  • Author(s): S.Kobayashi, S.Kado, T.Oishi, 他16名
  • Journal Title: Review of Scientific Instruments 81
  • Peer Reviewed
• [Journal Article] Development of Highly Spectral-Resolved Charge Exchange Recombination Spectroscopy in Heliotron J (2010)
  • Author(s): S.Kobayashi, S.Ohshima, S.Kado, 他15名
  • Journal Title: J.Plasma Fusion Res.SERIES Vol.9 Pages: 59-63
  • Peer Reviewed
• [Journal Article] Fast-Ion Response to Energetic-Particle-Driven MHD Activity in Heliotron J (2010)
  • Author(s): S.Kobayashi, K.Nagaoka, S.Yamamoto, 他16名
  • Journal Title: Contribution to Plasma Physics 50 Pages: 539-543
  • Peer Reviewed
• [Journal Article] Development of Highly Spectral-Resolved Charge Exchange Recombination Spectroscopy in Heliotron J (2010)
  • Author(s): S.Kobayashi, S.Ohshima, S.Kado, et al.
  • Journal Title: Journal of Plasma and Fusion Research SERIES Volume: 9 Pages: 59-63
  • Peer Reviewed
• [Journal Article] Application of beam emission spectroscopy to NBI plasmas of Heliotron J (2010)
  • Author(s): S.Kobayashi, S.Kado, T.Oishi, et al.
  • Journal Title: Review of Scientific Instruments Volume: 81
  • Peer Reviewed
• [Journal Article] Design of a new high repetition rate Nd : YAG Thomson scattering system for Heliotron J (2010)
  • Author(s): Takashi Minami, Shinji Kobayashi, Touru Mizuuchi, et al.
  • Journal Title: Review of Scientific Instruments Volume: 81
  • Peer Reviewed
• [Journal Article] Fast ion response to energetic-particle-driven MHD activities in Heliotron J (2010)
  • Author(s): S.Kobayashi, K.Nagaoka, S.Yamamoto, et al.
  • Journal Title: Contributions to Plasma Physics
  • Peer Reviewed
• [Journal Article] Development of Highly Spectral-Resolved Charge Exchange Recombination Spectroscopy in Heliotron J (2010)
  • Author(s): S.Kobayashi, S.Ohshima, S.Kado, et al.
  • Journal Title: Journal of Japan Society of Plasma Science and Nuclear Fusion Research (Special Series)
  • Peer Reviewed
• [Journal Article] Effect of Toroidal Current on Rotational Transform Profile by MHD Activity Measurement in Heliotron J (2008)
  • Author(s): G. Motojima, S. Yamamoto, H. Okada, S. Sakakibara, K. Watanabe, K. Nagasaki, Y. Suzuki, T. Mizuuchi, S. Kobayashi, Boyd D. Blackwell, Y. Nakamura, K. Kondo, K. hanatani, H. Arimoto, S. Watanabe, F. Sano
  • Journal Title: Plasma and Fusion Research 3
  • NAID: 130000264012
  • Peer Reviewed
• [Journal Article] ECCD Experiments in Heliotron J, TJ-II, CHS, and LHD (2008)
  • Author(s): K. Nagasaki, G. Motojima, Angela C. Feindndez, Alvaro A. CAPPA, Jose Maria Fontdecaba, Y. Yoshimura, T. Notake, S. Kubo, T. Shimozuma, H. Igami, K. Ida, M. Yushimura, T. Kobuchi, Heliotron J Team, TJ-II Team, CHS Team and LHD Team
  • Journal Title: Plasma and Fusion Research 3
  • Peer Reviewed
• [Journal Article] Neutral Transport Analysis in a Non-Axisymmetric Plasma Confining System Based on a Monte-Carlo Simulation (2008)
  • Author(s): Y. Nakashima, Y. Higashizono, S. Kobayashi, H. Yabutani, M. Shoji, T. Mizuuchi, K. Nagasaki, H. Okada, F. Sano, K. Kondo, H. Kawano, T. Cho
  • Journal Title: Contribution to Plasma Physics 48 Pages: 141-146
  • Peer Reviewed
• [Journal Article] Measurement of Peripheral Plasma Turbulence Using a Fast Camera in Heliotron J (2008)
  • Author(s): N. Nishino, T. Mizuuchi, S. Kobayashi, K. Nagasaki, H. Okada, F. Sano, S. Yamamoto, K. Kondo
  • Journal Title: Plasma and Fusion Research 3
  • Peer Reviewed
• [Presentation] NBI experiments in Heliotron J (2010)
  • Author(s): S.Kobayashi, K.Nagaoka, T.Mizuuchi, 他16名
  • Organizer: 37th European Physical Society Conference on Plasma Physics P1.1053
  • Place of Presentation: Dublin, Ireland
• [Presentation] NBI experiments in Heliotron J (2010)
  • Author(s): S.Kobayashi, K.Nagaoka, T.Mizuuchi, et al.
  • Organizer: 37th European Physical Society Conference on Plasma Physics
  • Place of Presentation: Dublin, Ireland
• [Presentation] Development of Highly Spectral-Resolved Charge Exchange Recombination Spectroscopy in Heliotron J (2009)
  • Author(s): S.Kobayashi, H.Y.Lee, T.Minami, S.Kado, et al.
  • Organizer: Asia Plasma and Fusion Association 2009
  • Place of Presentation: Aomori, Japan
  • Year and Date: 2009-10-28
• [Presentation] Fast ion response to energetic-particle-driven MHD activities in Heliotron J (2009)
  • Author(s): S.Kobayashi, K.Nagaoka, S.Yamamoto, et al.
  • Organizer: 17th International Stellarator/Heliotron Workshop
  • Place of Presentation: Princeton, NJ, USA
  • Year and Date: 2009-10-16
• [Presentation] Development of Highly Spectral-Resolved Charge Exchange Recombination Spectroscopy in Heliotron J (2009)
  • Author(s): S.Kobayashi, 他15名
  • Organizer: Asia Plasma and Fusion Association 2009/Asia-Pacific Plasma Theory Conference in 2009 P28p-02
  • Place of Presentation: Aomori, Japan
• [Presentation] Energetic particle transport in NBI plasmas of Heliotron J (2009)
  • Author(s): S.Kobayashi, 他18名
  • Organizer: 17th International Stellarator/Heliotron Workshop I31
  • Place of Presentation: Princeton, New Jersey (USA)(招待講演)
• [Presentation] Configur ation effect on energetic particle and energy confinement in NBI plasmas of Heliotron J (2008)
  • Author(s): S. Kobayashi, T. Mizuuchi, K. Nagasaki, H. Okada, K. Kondo, S. Yamamoto, S. Murakami, D. Katayama, Y. Suzukc, T. Minami, K. Nagaoka, Y. Takeiri, K. Murai, Y. Nakamura, M. Yokoyama, K. Hanatani, G. Motojima, K. Hosaka, K. Toushi and F. Sano
  • Organizer: 18th International Toki Conference (ITC18) Development of Physics and Technology of Stellarators/Heliotronsen route to DEMO
  • Place of Presentation: セラトピア土岐、土岐市
  • Year and Date: 2008-12-10
• [Presentation] ヘリオトロンJのNBIプラズマにおけるエネルギー閉じ込めのバンピー磁場効果 (2008)
  • Author(s): 小林進二, 水内亨, 長崎百伸, 岡田浩之, 近藤克巳, 山本聡, 村上定義, 片山大輔, 鈴木康浩, 南貴司, 永岡賢一, 竹入康彦, 中村祐司, 横山雅之, 花谷清, 渡邉真也, 向井清史, 保坂勝幸, 小和田雄亮, 三原詩織, 木島滋, 東使潔, 佐野史道
  • Organizer: 第25回プラズマ・核融合学会年会
  • Place of Presentation: 栃木県総合文化センター、宇都宮市
  • Year and Date: 2008-11-02
• [Presentation] ヘリオトロンJにおけるバンピー磁場のNBIプラズマ中のエネルギー閉じ込めへの影響 (2008)
  • Author(s): 小林進二、水内亨、長崎百伸、岡田浩之、近藤克巳、山本聡、村上定義、片山大輔、鈴木康浩、南貴司、永岡賢一、竹入康彦、村井謙介、中村祐司、(核融合研)横山雅之、花谷清、本島厳、保坂勝幸、東使潔、佐野史道
  • Organizer: 第7回核融合エネルギー連合講演会
  • Place of Presentation: 青森市男女共同参画プラザ、青森市
  • Year and Date: 2008-06-19
• [Presentation] Configuration effect on energetic particle and energy confinement in NBI plasmas of Heliotron J (2008)
  • Author(s): S.Kobayashi, 他19名
  • Organizer: 18th International Toki Conference I-16
  • Place of Presentation: Toki, Japan(招待講演)
• [Presentation] Effect of Bumpy Magnetic Field on Energy Confinement in NBI Plasmas of Heliotron J (2008)
  • Author(s): S.Kobayashi, 他19名
  • Organizer: 22nd IAEA Fusion Energy Conference EX/P5-13
  • Place of Presentation: Geneva, Switzerland
• [Presentation] Effect of Bumpy Magnetic Field on Energy Confinement in NBI Plasmas of Heliotron J (2008)
  • Author(s): S. Kobayashi, S. Kobayashi, T. Mizuuchi, K. Nagasaki, H. Okada, K. Kondo, S. Yamamoto, S. Murakami, D. Katayama, Y. Suzuki, T. Minami, K. Nagaoka, Y. Takeiri, K. Murai, Y. Nakamura, M. Yokoyama, K. Hanatani, G. Motojima, K. Hosaka, K. Toushi, F. Sano
  • Organizer: 22nd IAEA Fusion Energy Conference
  • Place of Presentation: Geneva, Switzerland
• [Remarks] ホームページ等
  • URL: http://www.iae.kyoto-u.ac.jp/kbutsu/kbutsu.html#AR
• [Remarks] エネルギー理工学研究所年報
  • URL: http://www.iae.kyoto-u.ac.jp/kbutsu/kbutsu.html#AR