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MHD Spectroscopy using energetic particle driven global instabilities in toroidal plasmas

Research Project

Project/Area Number 24360386
Research Category

Grant-in-Aid for Scientific Research (B)

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

Principal Investigator

TOI Kazuo  核融合科学研究所, その他部局等, 名誉教授 (20093057)

Co-Investigator(Renkei-kenkyūsha) ISOBE Mitsutaka  自然科学研究機構, 核融合科学研究所・ヘリカル研究部, 教授 (00300731)
TOKUZAWA Tokihiko  自然科学研究機構, 核融合科学研究所・ヘリカル研究部, 准教授 (90311208)
OSAKABE Masaki  自然科学研究機構, 核融合科学研究所・ヘリカル研究部, 教授 (90280601)
OHDACHI Satoshi  自然科学研究機構, 核融合科学研究所・ヘリカル研究部, 准教授 (00270489)
IDO Takeshi  自然科学研究機構, 核融合科学研究所・ヘリカル研究部, 准教授 (50332185)
SHIMIZU Akihiro  自然科学研究機構, 核融合科学研究所・ヘリカル研究部, 助教 (00390633)
YAMAMOTO Satoshi  京都大学, エネルギー科学研究所, 助教 (70397529)
Research Collaborator OGAWA Kunihiro  自然科学研究機構, 核融合科学研究所・ヘリカル研究部, 助教
KIM J.  韓国国立核融合研究所, KSTAR研究センター, 研究員
KIM J.H.  韓国国立核融合研究所, KSTAR研究センター, 研究員
BAK J.G.  韓国国立核融合研究所, KSTAR研究センター, 研究員
SPONG D.A.  オークリッジ国立研究所, 主任研究員
Project Period (FY) 2012-04-01 – 2015-03-31
Project Status Completed (Fiscal Year 2014)
Budget Amount *help
¥8,970,000 (Direct Cost: ¥6,900,000、Indirect Cost: ¥2,070,000)
Fiscal Year 2014: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2013: ¥2,860,000 (Direct Cost: ¥2,200,000、Indirect Cost: ¥660,000)
Fiscal Year 2012: ¥5,460,000 (Direct Cost: ¥4,200,000、Indirect Cost: ¥1,260,000)
Keywords炉心プラズマ / アルファ粒子 / 高速イオン / アルヴェン固有モード / 回転変換分布 / トカマク及びヘリカル / MHD不安定性 / プラズマ・核融合 / 磁場閉じ込め核融合炉 / トカマク・ヘリカル / 揺動周波数スペクトル / 高周波帯状流
Outline of Final Research Achievements

Potentiality of Magneto-hydro-dynamic (MHD) spectroscopy using the information of the eigenfrequency and radial location of energetic ion driven MHD instabilities, in particular, Alfven eigenmodes for prediction of the rotational transform (or safety factor) profile has been verified in both tokamak and helical plasmas. In this research, global Alfven eigenmodes (GAEs) are found to be an another useful candidate for MHD spectroscopy as well as reversed magnetic shear Alfven eigenmodes (RSAEs) that are already known to be useful for MHD spectroscopy in tokamak and helical plasmas. The MHD spectroscopy can be applied to toroidal plasmas with wide variety of the rotational transform profiles, since GAEs and RSAEs can be destabilized in such profiles.

Report

(4 results)
  • 2014 Annual Research Report   Final Research Report ( PDF )
  • 2013 Annual Research Report
  • 2012 Annual Research Report
  • Research Products

    (7 results)

All 2015 2014 2013

All Journal Article (3 results) (of which Peer Reviewed: 3 results,  Acknowledgement Compliant: 2 results) Presentation (4 results) (of which Invited: 1 results)

  • [Journal Article] Resistive Interchange Modes Destabilized by Helically Trapped Energetic Ions in a Helical Plasma2015

    • Author(s)
      X.D. Du, K. Toi, M. Osakabe, S. Ohdachi, T. Ido,M. Isobe, A. Shimizu
    • Journal Title

      Physical Review Letters

      Volume: 114 Issue: 15

    • DOI

      10.1103/physrevlett.114.155003

    • Related Report
      2014 Annual Research Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Journal Article] Energetic particle physics in fusion research in preparation for burning plasma experiments2014

    • Author(s)
      N.N. Gorelenkov, S.D. Pinches, K. Toi
    • Journal Title

      Nuclear Fusion

      Volume: 54 Issue: 12 Pages: 125001-125001

    • DOI

      10.1088/0029-5515/54/12/125001

    • Related Report
      2014 Annual Research Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Journal Article] Energetic-Ion-Driven Global Instabilities Observed in the Large Helical Device and Their Effects on Energetic Ion Confinement2013

    • Author(s)
      K. Toi
    • Journal Title

      Plasma and Fusion Research

      Volume: 8

    • NAID

      130003366284

    • Related Report
      2012 Annual Research Report
    • Peer Reviewed
  • [Presentation] MHD Spectroscopy Using Energetic-Ion-Driven Alfven Eigenmodes in Toroidal Plasmas2014

    • Author(s)
      K. Toi and LHD experiment Group
    • Organizer
      Plasma Conference 2014
    • Place of Presentation
      新潟さぎメッセ(新潟市)
    • Year and Date
      2014-11-21
    • Related Report
      2014 Annual Research Report
  • [Presentation] 磁場閉じ込め核融合反応プラズマのMHDスペクトロスコピー2013

    • Author(s)
      東井和夫、 小川国大、 磯部光孝、 長壁正樹、他
    • Organizer
      日本物理学会 第68回年次大会
    • Place of Presentation
      広島大学 東広島キャンパス
    • Year and Date
      2013-03-26
    • Related Report
      2012 Annual Research Report
  • [Presentation] MHD Spectroscopy using Energetic Ion Driven Global Modes Observed in KSTAR and LHD2013

    • Author(s)
      K. Toi, J.H. Kim, J. Kim, I.G Bak, et al.
    • Organizer
      KSTAR Conference 2013
    • Place of Presentation
      Lotte Buyeo Resort, 韓国(招待講演)
    • Year and Date
      2013-02-26
    • Related Report
      2012 Annual Research Report
  • [Presentation] Determination of the Safety Factor Profile by MHD Spectroscopy Using Energetic Particle Driven Modes in Toroidal Plasmas2013

    • Author(s)
      K. Toi and LHD experiment Group
    • Organizer
      A3 Foresight Program Workshop on Critical Physics Issues Specific to Steady State Sustainment of High-Performance Plasmas
    • Place of Presentation
      Beijing Redwall Sovereign Hotel, Beijing, China
    • Related Report
      2013 Annual Research Report
    • Invited

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Published: 2012-04-24   Modified: 2019-07-29  

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