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2013 Fiscal Year Final Research Report

Measurement of electron Bernstein wave emission to search the optimum injection condition to heat the central region of the extremely high dense plasma

Research Project

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Project/Area Number 23561006
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Nuclear fusion studies
Research InstitutionNational Institute for Fusion Science

Principal Investigator

IGAMI Hiroe  核融合科学研究所, ヘリカル研究部, 准教授 (10390634)

Co-Investigator(Renkei-kenkyūsha) KUBO Shin  核融合科学研究所, 教授 (80170025)
SHIMOZUMA Takashi  核融合科学研究所, 教授 (80270487)
YOSHIMURA Yasuo  核融合科学研究所, 准教授 (90300730)
TAKAHASHI Hiromi  核融合科学研究所, 教授 (00462193)
IDEI Hiroshi  九州大学, 応用力学研究所, 教授 (70260049)
Project Period (FY) 2011 – 2013
Keywords炉心プラズマ / 電子バーンシュタイン波加熱
Research Abstract

For the electron cyclotron heating (ECH) in over-dense plasmas by launching the electron cyclotron (EC) wave from the low magnetic field side, the electron Bernstein wave (EBW) excited via the ordinary - extraordinary - EBW (OXB) mode conversion process is used. To excite the EBW, the ordinary mode should be launched toward the restricted range of the injection angle, so called "OXB mode conversion window". The EBW emitted thermally in the electron cyclotron resonance (ECR) layer in the over-dense region, can be radiated as an electromagnetic wave via the B-X-O mode conversion process, which is the reverse process of the heating. To survey the "OXB mode conversion window" experimentally, an waveguide switch was installed in the middle of the ECH transmission line to send the emission from the plasma to a heterodyne radiometer system. As the first results, we have observed emission with the radiometer when an over-dense plasma is generated.

  • Research Products

    (10 results)

All 2014 2013 2012 2011

All Journal Article (4 results) (of which Peer Reviewed: 2 results) Presentation (6 results) (of which Invited: 1 results)

  • [Journal Article] Electron Bernstein wave heating and emission measurement through the very narrow O-X-B mode conversion window in the LHD2014

    • Author(s)
      H.Igami, S.Kubo, T.Shimozuma, Y.Yoshimura, H.Takahashi, M. Nishiura, Ogasawara, R. Makino, H. Idei, K. Nagasaki, T. Seki, T. Mutoh
    • Journal Title

      AIP Conf. Proc.

      Volume: 1580 Pages: 490

  • [Journal Article] Progress of ECRH by EBW in over-dense plasmas and controlling the confinement regime by ECCD with high power launching in LHD2012

    • Author(s)
      H. Igami, Y. Yoshimura, H. Takahashi, T. Shimozuma, S. Kubo, H. Idei, M. Nishiura, S. Ogasawara, R. Makino S. Ohdachi, K. Ida, M. Yoshinuma, Ido, A. Shimizu, N. Tamura, S. Inagaki and T. Mutoh
    • Journal Title

      EPJ Web of Conference

      Volume: 32 Pages: 02006

  • [Journal Article] Experimental Results for Electron Bernstein Wave Heating in the Large Helical Device2012

    • Author(s)
      H. Igami, S. Kubo, T. Shimozuma, Y. Yoshimura, H. Takahashi, H. Idei, M. Nishiura, S. Ogasawara, R. Makino, R. Kumazawa, T. Mutoh, A. Sagara and T. Goto
    • Journal Title

      Plasma and Fusion Research

      Volume: 7 Pages: 2402110

    • Peer Reviewed
  • [Journal Article] Measurement of the Electron Bernstein Wave Emission with One of the Power Transmission Lines for ECH in LHD2011

    • Author(s)
      IGAMI Hiroe, IDEI Hiroshi, KUBO Shin, YOSHIMURA Yasuo, SHIMOZUMA Takashi, and TAKAHASHIHiromi
    • Journal Title

      Plasma Science and Technology

      Volume: 13 Pages: 405

    • Peer Reviewed
  • [Presentation] lectron Bernstein wave heating and emission measurement through the very narrow O-X-B mode conversion window in the LHD2013

    • Author(s)
      H. Igami, 他
    • Organizer
      20th Topical Conference on Radio Frequency Power in Plasmas
    • Place of Presentation
      Sorrento, Italy(ポスター発表)
    • Year and Date
      20130625-28
  • [Presentation] LHDにおけるアンテナ放電中掃引を用いたOXBモード変換窓探査2013

    • Author(s)
      伊神弘恵, 他
    • Organizer
      プラズマ・核融合学会第30回年会
    • Place of Presentation
      東京工業大学大岡山キャンパス(東京都)(口頭発表)
    • Year and Date
      20130203-06
  • [Presentation] 磁場配位最適化による基本共鳴周波数帯の電子バーシュタイン波加熱による高密度プラズマの中心部加熱2012

    • Author(s)
      伊神弘恵, 他
    • Organizer
      プラズマ・核融合学会第29回年会
    • Place of Presentation
      クローバープラザ(福岡県春日市)
    • Year and Date
      20121127-30
    • Invited
  • [Presentation] Progress of ECRH by EBW in over-dense plasmas and controlling the confinement regime by ECCD with high power launching in LHD2012

    • Author(s)
      H. Igami, 他
    • Organizer
      17th joint workshop on Electron cyclotron Emission and Electron Cyclotron Resonance Heating
    • Place of Presentation
      Deurne, Netherlands(口頭発表)
    • Year and Date
      20120510-17
  • [Presentation] Experimental results of electron Bernstein wave heating on the LHD and consideration for a helical type fusion device2011

    • Author(s)
      H. Igami, S. Kubo, T. Shimozuma, Y. Yoshimura, H. Takahashi, H. Idei, M. Nishiura, S. Ogasawara, R. Makino, R. Kumazawa, T. Mutoh, A. Sagara, T. Goto
    • Organizer
      International Toki Conference 21
    • Place of Presentation
      Toki, Japan(ポスター発表)
    • Year and Date
      20111129-1201
  • [Presentation] HDにおけるOXBモード変換過程を介した電子バーンシュタイン波加熱実験2011

    • Author(s)
      伊神弘恵, 久保伸, 下妻隆, 吉村泰夫, 高橋裕己, 出射浩, 他5名
    • Organizer
      Plasma Conference 2011
    • Place of Presentation
      石川県立音楽堂(口頭発表)
    • Year and Date
      20111122-25

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Published: 2015-07-16  

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