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Investigation of interaction among large-scaled energetic particle-driven fluctuations and micro-scaled plasma turbulences

Research Project

Project/Area Number 18K03589
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 14020:Nuclear fusion-related
Research InstitutionKyushu University (2019-2021)
National Institute for Fusion Science (2018)

Principal Investigator

IDO TAKESHI  九州大学, 応用力学研究所, 教授 (50332185)

Co-Investigator(Kenkyū-buntansha) 清水 昭博  核融合科学研究所, ヘリカル研究部, 助教 (00390633)
谷池 晃  神戸大学, 海事科学研究科, 准教授 (50283916)
Project Period (FY) 2018-04-01 – 2022-03-31
Project Status Completed (Fiscal Year 2021)
Budget Amount *help
¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2020: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2019: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2018: ¥2,990,000 (Direct Cost: ¥2,300,000、Indirect Cost: ¥690,000)
Keywords磁場閉じ込めプラズマ / 乱流 / 高エネルギー粒子駆動不安定性 / 重イオンビームプローブ / 高速イオン励起不安定性 / 電場 / 高速イオン / 高エネルギー粒子駆動揺動 / プラズマ乱流 / 高エネルギー重イオン検出器
Outline of Final Research Achievements

A diagnostic system, HIBP, to measure the electric potential and density fluctuations, which determine the performance of magnetically confined plasmas, has been improved. Using it, fluctuations driven by energetic particles in the plasmas and plasma turbulence have been measured successfully. Although the direct interaction between the energetic-particle driven instability and the turbulence was not detected, novel phenomena, such as unique two-dimensional structures of the energetic-particle driven instability and the electric field formation by the energetic particles, have been found.

Academic Significance and Societal Importance of the Research Achievements

空間広がりや変動の時定数の異なる乱流と高速イオンによって励起される揺らぎは、従来は異なる階層の現象として独立して理解されていたが、近年ではそれらの相互作用に着目した研究が進み始めている。本研究は実験からそのような階層間結合の理解を進めようとしたものである。特に、これまで観測されたことがない、高速イオン励起不安性の空間構造や高速イオンによって形成される電位分布と密度分布の特異な構造の発見は、この研究分野の進展を加速する成果である。

Report

(5 results)
  • 2021 Annual Research Report   Final Research Report ( PDF )
  • 2020 Research-status Report
  • 2019 Research-status Report
  • 2018 Research-status Report
  • Research Products

    (10 results)

All 2021 2020 2019 2018

All Journal Article (2 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 2 results,  Open Access: 1 results) Presentation (8 results) (of which Int'l Joint Research: 3 results,  Invited: 1 results)

  • [Journal Article] Geodesic acoustic modes in magnetic confinement devices2021

    • Author(s)
      Conway G.D.、Smolyakov A.I.、Ido T.
    • Journal Title

      Nuclear Fusion

      Volume: 62 Issue: 1 Pages: 013001-013001

    • DOI

      10.1088/1741-4326/ac0dd1

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Abrupt excitation of energetic-particledriven geodesic acoustic mode in the large helical device2018

    • Author(s)
      Takeshi Ido
    • Journal Title

      AIP Conference Proceedings

      Volume: 1993 Pages: 020002-020002

    • DOI

      10.1063/1.5048712

    • Related Report
      2018 Research-status Report
    • Peer Reviewed
  • [Presentation] Dynamics of energetic particle-driven oscillatory zonal flow in toroidal plasmas2021

    • Author(s)
      Takeshi Ido
    • Organizer
      プラズマ・核融合学会
    • Related Report
      2021 Annual Research Report
  • [Presentation] Design of Heavy Ion Beam Probes on the PLATO tokamak2020

    • Author(s)
      Takeshi Ido, Akihide Fujisawa, Keiji Takemura, Naohiro Kasuya, Shigeru Inagaki, Atsushi Fukuyama, Yoshihiko Nagashima, Chanho Moon, Kotaro Yamasaki, Takuma Yamada, Yusuke Kosuga, Makoto Sasaki
    • Organizer
      High-temperature Plasma DIagnostics Conference
    • Related Report
      2020 Research-status Report
    • Int'l Joint Research
  • [Presentation] Design of a Heavy Ion Beam Probe for the QUEST spherical tokamak2020

    • Author(s)
      T. Ido, M. Hasegawa, R. Ikezoe, T. Onchi, K. Hanada, H. Idei, K. Kuroda, N. Yoshida, Y. Nagashima
    • Organizer
      29th International Toki Conference on Plasma and Fusion Research
    • Related Report
      2020 Research-status Report
    • Int'l Joint Research
  • [Presentation] QUEST用重イオンビームプローブの設計2020

    • Author(s)
      井戸毅,長谷川真,池添竜也,恩地拓己,出射浩,黒田賢剛,吉田直亮,永島芳彦
    • Organizer
      プラズマ・核融合学会 第37回年会
    • Related Report
      2020 Research-status Report
  • [Presentation] 乱流抑制配位創成に向けたHIBP設置可能性の検討2020

    • Author(s)
      井戸毅,清水昭博,西浦正樹,濱田泰司
    • Organizer
      プラズマ・核融合学会 第37回年会
    • Related Report
      2020 Research-status Report
  • [Presentation] Nonlinear wave-particle interaction in magnetized high temperature plasmas confined in Large Helical Device2019

    • Author(s)
      Takeshi Ido
    • Organizer
      3rd Asia-Pacific Conference on Plasma Physics
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] LHDにおける高速イオン励起測地線音波バーストが電位分布に及ぼす影響2019

    • Author(s)
      井戸毅、一ノ瀬薫、清水昭博、佐々木真、WANG Hao、西浦正樹
    • Organizer
      第36回 プラズマ・核融合学会 年会
    • Related Report
      2019 Research-status Report
  • [Presentation] LHDにおける高速イオン励起測地線音波の2次元構造の観測2019

    • Author(s)
      井戸 毅, 一ノ瀬薫,清水昭博,佐々木真
    • Organizer
      日本物理学会 第74回年次大会
    • Related Report
      2018 Research-status Report

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Published: 2018-04-23   Modified: 2023-01-30  

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