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コンピュータトモグラフィを応用した三次元ドップラー温度・流速計の開発

Research Project

Project/Area Number 11J06299
Research Category

Grant-in-Aid for JSPS Fellows

Allocation TypeSingle-year Grants
Section国内
Research Field Plasma science
Research InstitutionThe University of Tokyo

Principal Investigator

田辺 博士  東京大学, 大学院新領域創成科学研究科, 特別研究員(PD)

Project Period (FY) 2011 – 2013
Project Status Completed (Fiscal Year 2013)
Budget Amount *help
¥1,900,000 (Direct Cost: ¥1,900,000)
Fiscal Year 2013: ¥600,000 (Direct Cost: ¥600,000)
Fiscal Year 2012: ¥600,000 (Direct Cost: ¥600,000)
Fiscal Year 2011: ¥700,000 (Direct Cost: ¥700,000)
Keywordsプラズマ診断 / 非接触計測 / ドップラー計測 / イオン温度 / プラズマ流 / コンピュータトモグラフィ / 球状トカマク / 磁気リコネクション / 逆問題
Research Abstract

プラズマから放射される可視光線スペクトルがドップラー効果を受けて波長シフトすることを利用して、プラズマの熱運動や流れを線スペクトルのドップラー幅・バルクシフトから調べる手法であるドップラー分光計測にコンピュータトモグラフィを応用し、プラズマ内部の局所イオン温度・流速分布計測を目指す本計画に関し、最終年度である平成25年度は研究成果のまとめとして、
[1]マルチチャンネルファイバー分光にトモグラフィを応用した局所イオン温度計測法の論文出版
(H. Tanabe et. al., Nucl. Fusion, 53,093027 (2013))
[2]マルチチャンネル分光にベクトルトモグラフィを応用したイオン流速分布計測法の論文出版
(H. Tanabe et. al., PFR, 8,2405088 (2013))
の2点の論文発表および、さらなる応用開拓として、
[3]英国カラム研究所のMAST装置における世界最大の大型球状トカマク合体実験への大型装置応用
を行った。[1][2]の論文成果により、MASTのビーム分光計測グループから協力を取り付けるところに成功し、2013年のM9キャンペーン中にミッドプレーンのポートを一つ獲得、現地に32チャンネルのイオンドップラートモグラフィ計測を新しく建設した。これにより、従来MAST既設の中性粒子ビームを用いた荷電交換分光による能動計測システムでは計測不可能であった、合体法やEBWを用いたCS-less立ち上げ過程におけるイオン温度の局所分布計測が初めて実現した。本成果によりイオン加熱の空間分布が初めて計測可能になったことで東大-MAST共同研究が大幅に進展し、合体下流のイオン温度が磁気リコネクションの再結合磁場B_<rec>(^<DC>I_<PF : startup coil>)の2乗に比例して上昇する過程をとらえ、TS-3, TS-4装置の実験室プラズマで確立したリコネクション加熱の大型装置実証に成功したほか、130点トムソン散乱計測と連携した高空間分布計測により、合体下流のイオン加熱とX点に局在した電子加熱が相互にτ^E_<ei>程度の時間スケールで相互にエネルギー緩和する過程を初めて明らかにし、2012年までの研究成果から大幅な進展がみられた。

Current Status of Research Progress
Current Status of Research Progress

1: Research has progressed more than it was originally planned.

Reason

(抄録なし)

Strategy for Future Research Activity

(抄録なし)

Report

(3 results)
  • 2013 Annual Research Report
  • 2012 Annual Research Report
  • 2011 Annual Research Report
  • Research Products

    (23 results)

All 2013 2012 2011

All Journal Article (8 results) (of which Peer Reviewed: 8 results) Presentation (15 results)

  • [Journal Article] Two dimensional ion temperature measurement by application of tomographic reconstruction to Doppler spectroscopy2013

    • Author(s)
      H. Tanabe, et. al.
    • Journal Title

      Nuclear Fusion

      Volume: 53 Issue: 9 Pages: 93027-93027

    • DOI

      10.1088/0029-5515/53/9/093027

    • Related Report
      2013 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Two Dimensional Imaging Measurement of Magnetic Reconnection Outflow in the TS-4 Toroidal Plasma Merging Experiment2013

    • Author(s)
      H. Tanabe, et. al.
    • Journal Title

      Plasma and Fusion Research

      Volume: 8 Issue: 0 Pages: 2405088-2405088

    • DOI

      10.1585/pfr.8.2405088

    • NAID

      130005076162

    • ISSN
      1880-6821
    • Related Report
      2013 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Excitation and propagation of electromagnetic fluctuations with ion-cyclotron range of frequency in magnetic reconnection laboratory experiment2013

    • Author(s)
      M. Inomoto, A. Kuwahata, H. Tanabe, Y. Ono and TS Group
    • Journal Title

      Physics of Plasmas

      Volume: 20 Issue: 6 Pages: 61209-61209

    • DOI

      10.1063/1.4811469

    • Related Report
      2013 Annual Research Report
    • Peer Reviewed
  • [Journal Article] A Laboratory Experiment of Magnetic Reconnection : Outflows, Heating, and Waves in2012

    • Author(s)
      N.Nishizuka, Y.Hayashi, H.Tanabe, et.al.
    • Journal Title

      The Astrophysical Journal

      Volume: 756 Issue: 2 Pages: 152-163

    • DOI

      10.1088/0004-637x/756/2/152

    • Related Report
      2012 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Ion and electron heating characteristics of magnetic reconnection in tokamak plasma merging experiments2012

    • Author(s)
      Y.Ono, H.Tanabe, et. al.
    • Journal Title

      Plasma Physics and Controlled Fusion

      Volume: 54 Issue: 12 Pages: 124039-124049

    • DOI

      10.1088/0741-3335/54/12/124039

    • Related Report
      2012 Annual Research Report
    • Peer Reviewed
  • [Journal Article] High Power Heating of Magnetic Reconnection for High-Beta ST formation in TS-3 and UTST ST Merging Experiments2012

    • Author(s)
      Y.Ono, H.Tanabe, Y.Kamino, K.Yamasaki, K.Kadowaki, Y.Hayashi, T.Yamada
    • Journal Title

      J.Fusion Energy

      Volume: (印刷中)(掲載確定)

    • Related Report
      2011 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Ion and Electron Heating Characteristics of Magnetic Reconnection in a Two Flux Loop Merging Experiment2011

    • Author(s)
      Y.Ono, H.Tanabe, Y.Hayashi, T.Ii, Y.Narushima, T.Yamada, M.Inomoto, C.Z.Cheng
    • Journal Title

      Physical Review Letters

      Volume: 107 Issue: 18 Pages: 185001-4

    • DOI

      10.1103/physrevlett.107.185001

    • Related Report
      2011 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Intermittent magnetic reconnection in TS-3 merging experiment2011

    • Author(s)
      Y.Ono, Y.Hayashi, T.Ii, H.Tanabe, S.Ito, A.Kuwahata, T.Ito, Y.Kamino, T.Yamada, M.Inomoto, TS-Group
    • Journal Title

      Physics of Plasmas

      Volume: 18 Issue: 11 Pages: 111213-111219

    • DOI

      10.1063/1.3662434

    • Related Report
      2011 Annual Research Report
    • Peer Reviewed
  • [Presentation] MAST大型実験における磁気リコネクションのイオン加熱2013

    • Author(s)
      田辺 博士, et. al.
    • Organizer
      プラズマ・核融合学会 第30回年会
    • Place of Presentation
      東工大(大岡山キャンパス)
    • Year and Date
      2013-12-03
    • Related Report
      2013 Annual Research Report
  • [Presentation] Study of Local Plasma Heating during Magnetic Reconnection by Tomographic Ion Doppler Spectroscopy in TS-3, TS-4 and MAST2013

    • Author(s)
      H. Tanabe, et. al.
    • Organizer
      55th Annual Meeting of the APS Division of Plasma Physics
    • Place of Presentation
      Denver, Colorado, USA
    • Year and Date
      2013-11-13
    • Related Report
      2013 Annual Research Report
  • [Presentation] Ion Heating Measurement during Two ST Plasma Merging in MAST and TS-42013

    • Author(s)
      H. Tanabe, et. al.
    • Organizer
      International Spherical Torus Workshop 2013
    • Place of Presentation
      York, Yorkshire, UK
    • Year and Date
      2013-09-17
    • Related Report
      2013 Annual Research Report
  • [Presentation] Development of Tomographic 2D Toroidal Rotation Measurement by Multi-chord Doppler Spectroscopy Approach2012

    • Author(s)
      H.Tanabe, et. al.
    • Organizer
      The 9th Australia-Japan workshop on plasma diagnostics
    • Place of Presentation
      東海村(那珂核融合研究所)
    • Year and Date
      2012-12-06
    • Related Report
      2012 Annual Research Report
  • [Presentation] Two dimensional imaging measurement of magnetic reconnection outflow in the TS-4 toroidal plasma merging experiment2012

    • Author(s)
      H.Tanabe, et. al.
    • Organizer
      22nd international Toki Conference
    • Place of Presentation
      土岐(セラトピア土岐)
    • Year and Date
      2012-11-19
    • Related Report
      2012 Annual Research Report
  • [Presentation] Ion and Electron Heating Characteristics of Magnetic Reconnection in TS-3, TS-4 and MAST Merging Experiments2012

    • Author(s)
      H.Tanabe, et. al.
    • Organizer
      54th Annual Meeting of the American Physical Society Division of Plasma Physics
    • Place of Presentation
      プロヴィデンス(米国)
    • Year and Date
      2012-10-29
    • Related Report
      2012 Annual Research Report
  • [Presentation] TS-3・TS-4・MAST装置における実験室リコネクションの加速・加熱2012

    • Author(s)
      田辺 博士, et. al.
    • Organizer
      第14回ひので-実験室研究会
    • Place of Presentation
      三鷹(国立天文台)
    • Year and Date
      2012-10-22
    • Related Report
      2012 Annual Research Report
  • [Presentation] High Power Heating of Magnetic Reconnection for a High-Beta ST Formation in TS-3 and UTST Merging Experiments2012

    • Author(s)
      Y.Ono, H. Tanabe, et. al.
    • Organizer
      24th Fusion Energy Conference (IAEA)
    • Place of Presentation
      サンディエゴ(米国)
    • Year and Date
      2012-10-12
    • Related Report
      2012 Annual Research Report
  • [Presentation] TS-3/4・MAST装置におけるリコネクション加熱実験の進展2012

    • Author(s)
      田辺 博士, et. al.
    • Organizer
      第13回ひので-実験室研究会
    • Place of Presentation
      相模原(宇宙科学研究所)
    • Year and Date
      2012-06-15
    • Related Report
      2012 Annual Research Report
  • [Presentation] Ion and Electron Heating during Magnetic Reconnection in TS-3, TS-4 and MAST Torus Plasma Merging Experiments2012

    • Author(s)
      H.Tanabe, et. al.
    • Organizer
      2012 US-Japan workshop on Magnetic Reconnection (MR2012)
    • Place of Presentation
      プリンストン大学(米国)
    • Year and Date
      2012-05-23
    • Related Report
      2012 Annual Research Report
  • [Presentation] ライトブリッジ共同実験におけるドップラー計測2011

    • Author(s)
      田辺博士, et.al.
    • Organizer
      第11回ひので-実験室研究会
    • Place of Presentation
      京都大学(京都府)
    • Year and Date
      2011-12-14
    • Related Report
      2011 Annual Research Report
  • [Presentation] トーラスプラズマ合体実験を用いた磁気リコネクションのイオン加熱機構の検証2011

    • Author(s)
      田辺博士, et.al.
    • Organizer
      Plasma Conference 2011
    • Place of Presentation
      石川県立音楽堂(石川県)
    • Year and Date
      2011-11-23
    • Related Report
      2011 Annual Research Report
  • [Presentation] Ion heating characteristics of magnetic reconnection in TS-3 & TS-4 tokamak and spheromak merging experiments2011

    • Author(s)
      Hiroshi Tanabe, et.al.
    • Organizer
      3rd Annual Meeting of the American Physical Society Division of Plasma Physics
    • Place of Presentation
      Salt Palace Convention Center (Salt Lake City, Utah,米国)
    • Year and Date
      2011-11-16
    • Related Report
      2011 Annual Research Report
  • [Presentation] ドップラー分光トモグラフィを用いた2次元イオン温度計システムの開発2011

    • Author(s)
      田辺博士, et.al.
    • Organizer
      画像計測研究会2011
    • Place of Presentation
      核融合科学研究所(岐阜県)
    • Year and Date
      2011-09-01
    • Related Report
      2011 Annual Research Report
  • [Presentation] Laboratory Experiment on Plasma Heating During Magnetic Reconnection in Torus Plasma Merging Device TS-3 and TS-42011

    • Author(s)
      Hiroshi Tanabe, et.al.
    • Organizer
      Hinode5
    • Place of Presentation
      Royal Sonesta Hotel (Cambridge, Massachusetts,米国)
    • Related Report
      2011 Annual Research Report

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Published: 2011-12-12   Modified: 2024-03-26  

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