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Research for ELM suppression in fusion reactors with metallic wall

Research Project

Project/Area Number 18K03593
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 InstitutionNational Institutes for Quantum Science and Technology

Principal Investigator

AIBA NOBUYUKI  国立研究開発法人量子科学技術研究開発機構, 那珂研究所 先進プラズマ研究部, グループリーダー (20414584)

Co-Investigator(Kenkyū-buntansha) 本多 充  京都大学, 工学研究科, 教授 (90455296)
Project Period (FY) 2018-04-01 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2021: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2020: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2019: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2018: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
KeywordsQH-mode / 拡張MHDモデル / プラズマ回転 / エッジローカライズドモード / トカマク / 磁場閉じ込め核融合 / トカマクプラズマ / エッジローカライズモード / H-mode / MHD安定性 / 核融合
Outline of Final Research Achievements

The linear extended magnetohydrodynamic instability analysis code developed by the principal investigator has been improved and used to experimentally identify the operation regime of the QH-mode, an operation mode that realizes suppression of edge localized modes (ELMs) that occur in the improved confinement operation mode (H-mode). The researchers also clarified that "fast plasma rotation" and "high plasma ion temperature" are important for expanding the QH-mode operation regime, and showed that the QH-mode can be realized in a fusion reactor with a metal wall if the high rotation speed and high ion temperature are maintained at the same level as those in existing experimental devices.

Academic Significance and Societal Importance of the Research Achievements

本研究での成果は,研究代表者らが独自に開発した数値解析コードを用いて,本研究期間の初期に従来の理解を覆す物理的性質,具体的にはQH-modeプラズマにおける周辺局在電磁流体不安定性はプラズマ回転により不安定化されるという従来の理解は,イオン反磁性ドリフト効果と呼ばれる別の物理効果を考慮した場合には正しくなく,むしろ回転は安定化に寄与するという発見からもたらされた.このような発見から,QH-modeによるトカマク型核融合炉の実現に必要なプラズマ条件を同定できたことの学術的意義は大きい.

Report

(7 results)
  • 2023 Annual Research Report   Final Research Report ( PDF )
  • 2022 Research-status Report
  • 2021 Research-status Report
  • 2020 Research-status Report
  • 2019 Research-status Report
  • 2018 Research-status Report
  • Research Products

    (36 results)

All 2023 2022 2021 2020 2019 2018 Other

All Int'l Joint Research (7 results) Journal Article (7 results) (of which Int'l Joint Research: 5 results,  Peer Reviewed: 6 results,  Open Access: 2 results) Presentation (22 results) (of which Int'l Joint Research: 9 results,  Invited: 1 results)

  • [Int'l Joint Research] General Atomics(米国)

    • Related Report
      2023 Annual Research Report
  • [Int'l Joint Research] General Atomics(米国)

    • Related Report
      2022 Research-status Report
  • [Int'l Joint Research] General Atomics(米国)

    • Related Report
      2021 Research-status Report
  • [Int'l Joint Research] IRFM, CEA(フランス)

    • Related Report
      2021 Research-status Report
  • [Int'l Joint Research] General Atomics(米国)

    • Related Report
      2020 Research-status Report
  • [Int'l Joint Research] General Atomics(米国)

    • Related Report
      2019 Research-status Report
  • [Int'l Joint Research] General Atomics(米国)

    • Related Report
      2018 Research-status Report
  • [Journal Article] Identification of plasma conditions affecting MHD phenomena in QH-mode and ELMy H-mode plasmas in DIII-D2023

    • Author(s)
      N. Aiba, X. Chen, T. H. Osborne, K. H. Burrell, M. Honda
    • Journal Title

      Proceedings of 29th IAEA Fusion Energy Conference (IAEA FEC 2023)

      Volume: IAEA-CN-316

    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Journal Article] Comparison of MHD stability properties between QH-mode and ELMy H-mode plasmas by considering plasma rotation and ion diamagnetic drift effects2023

    • Author(s)
      Aiba N.、Chen X.、Osborne T.H.、Burrell K.H.
    • Journal Title

      Nuclear Fusion

      Volume: 63 Issue: 4 Pages: 042001-042001

    • DOI

      10.1088/1741-4326/acbc35

    • Related Report
      2022 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] New H-mode regimes with small ELMs and high thermal confinement in the Joint European Torus2022

    • Author(s)
      Garcia J.、de la Luna E.、Sertoli M.、Casson F. J.、Mazzi S.、?tancar ?.、Szepesi G.、Frigione D.、Garzotti L.、Rimini F.、van Eester D.、Lomas P.、Sozzi C.、Aiba N.、Dicorato M.、Mariani A.、Coelho R.、Frasinetti L.、Huijsmans G. T. A.、Liu F.、JET Contributors
    • Journal Title

      Physics of Plasmas

      Volume: 29 Issue: 3 Pages: 032505-032505

    • DOI

      10.1063/5.0072236

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Stabilization of kink/peeling modes by coupled rotation and ion diamagnetic drift effects in quiescent H-mode plasmas in DIII-D and JT-60U2021

    • Author(s)
      Aiba N.、Chen X.、Kamiya K.、Honda M.、Osborne T.H.、Burrell K.H.、Snyder P.B.
    • Journal Title

      Nuclear Fusion

      Volume: 61 Issue: 12 Pages: 126044-126044

    • DOI

      10.1088/1741-4326/ac318e

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Unveiling the structure and dynamics of peeling mode in quiescent high-confinement tokamak plasmas2021

    • Author(s)
      Kamiya Kensaku、Itoh Kimitaka、Aiba Nobuyuki、Oyama Naoyuki、Honda Mitsuru、Isayama Akihiko
    • Journal Title

      Communications Physics

      Volume: 4 Issue: 1 Pages: 1-7

    • DOI

      10.1038/s42005-021-00644-x

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Development of a novel integrated model GOTRESS+ for predictions and assessment of JT-60SA operation scenarios including the pedestal2021

    • Author(s)
      Honda M.、Aiba N.、Seto H.、Narita E.、Hayashi N.
    • Journal Title

      Nuclear Fusion

      Volume: 61 Issue: 11 Pages: 116029-116029

    • DOI

      10.1088/1741-4326/ac2639

    • Related Report
      2021 Research-status Report
    • Peer Reviewed
  • [Journal Article] Impact of rotation and ion diamagnetic drift on MHD stability at edge pedestal in quiescent H-mode plasmas2020

    • Author(s)
      Aiba N.、Chen X.、Osborne T.H.、Honda M.、Burrell K.H.、Snyder P.B.
    • Journal Title

      Nuclear Fusion

      Volume: 60 Issue: 9 Pages: 092005-092005

    • DOI

      10.1088/1741-4326/ab8c66

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Presentation] Identification of plasma conditions affecting MHD phenomena in QH-mode and ELMy H-mode plasmas in DIII-D2023

    • Author(s)
      N. Aiba, X. Chen, T. H. Osborne, K. H. Burrell, M. Honda
    • Organizer
      29th IAEA Fusion Energy Conference (IAEA FEC 2023)
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] DIII-DにおけるQH-modeとELMy H-modeのMHD安定性に影響を与えるプラズマ条件の同定2023

    • Author(s)
      N. Aiba, X. Chen, T. H. Osborne, K. H. Burrell, M. Honda
    • Organizer
      プラズマ・核融合学会 第40回年会
    • Related Report
      2023 Annual Research Report
  • [Presentation] DIII-DにおけるQH-modeとELMy H-modeのMHD安定性に影響を与えるプラズマ条件の同定2023

    • Author(s)
      N. Aiba, X. Chen, T. H. Osborne, K. H. Burrell, M. Honda
    • Organizer
      NIFS共同研究研究会  「MHDとその周辺に関する理論・シミュレーション研究」
    • Related Report
      2023 Annual Research Report
  • [Presentation] DIII-DにおけるQH-modeとELMy H-modeのMHD安定性に影響を与えるプラズマ条件の同定2023

    • Author(s)
      N. Aiba, X. Chen, T. H. Osborne, K. H. Burrell, M. Honda
    • Organizer
      第21回統合コード研究会
    • Related Report
      2023 Annual Research Report
  • [Presentation] Comparison of MHD Stability properties between QH-mode and ELMy H-mode plasmas by considering plasma rotation and ion diamagnetic drift effects2023

    • Author(s)
      N. Aiba, X. Chen, T. H. Osborne, K. H. Burrell
    • Organizer
      The 7th UNIST-Kyoto U. Workshop
    • Related Report
      2022 Research-status Report
    • Int'l Joint Research
  • [Presentation] Comparison of MHD Stability properties between QH-mode and ELMy H-mode plasmas by considering plasma rotation and ion diamagnetic drift effects2022

    • Author(s)
      N. Aiba, X. Chen, T. H. Osborne, K. H. Burrell
    • Organizer
      NIFS共同研究 研究会 「核融合プラズマの運転制御に関するシミュレーション研究の進展」
    • Related Report
      2022 Research-status Report
  • [Presentation] QH-modeとELMy H-modeにおけるMHD安定性に対するプラズマ回転・近反磁性ドリフト効果の影響の比較2022

    • Author(s)
      N. Aiba, X. Chen, T. H. Osborne, K. H. Burrell
    • Organizer
      第39回プラズマ・核融合学会 年会
    • Related Report
      2022 Research-status Report
  • [Presentation] Comparison of MHD Stability properties between QH-mode and ELMy H-mode plasmas by considering plasma rotation and ion diamagnetic drift effects2022

    • Author(s)
      N. Aiba, X. Chen, T. H. Osborne, K. H. Burrell
    • Organizer
      JA-KO Workshop on Modeling and Simulation of Magnetic Fusion Plasma
    • Related Report
      2022 Research-status Report
    • Int'l Joint Research
  • [Presentation] Comparison of MHD Stability property between QH-mode and ELMy H-mode plasmas by considering plasma rotation and ion diamagnetic drift effects2022

    • Author(s)
      N. Aiba, X. Chen, T. H. Osborne, K. H. Burrell
    • Organizer
      18th International Workshop on H-mode Physics and Transport Barriers
    • Related Report
      2022 Research-status Report
    • Int'l Joint Research
  • [Presentation] Impact of plasma rotation and ion diamagnetic drift on MHD stability in QH-mode plasmas2021

    • Author(s)
      相羽信行,神谷健作,本多充
    • Organizer
      NIFS共同研究 研究会 核融合プラズマの運転制御に関するシミュレーション研究の進展
    • Related Report
      2021 Research-status Report
  • [Presentation] Stabilization of kink/peeling modes by coupled rotation and ion diamagnetic drift effects in QH-mode plasmas in DIII-D and JT-60U2021

    • Author(s)
      Aiba N.、Chen X.、Kamiya K.、Honda M.、Osborne T.H.、Burrell K.H.、Snyder P.B.
    • Organizer
      プラズマ・核融合学会 第38回年会
    • Related Report
      2021 Research-status Report
  • [Presentation] Impact of rotation and ion diamagnetic drift on MHD stability in QH-mode plasmas2021

    • Author(s)
      Aiba N., Kamiya K., Honda M.
    • Organizer
      15th Japan-Korea Workshop on "Modeling and Simulation of Magnetic Fusion Plasmas"
    • Related Report
      2021 Research-status Report
    • Int'l Joint Research
  • [Presentation] Stabilization of kink/peeling modes by coupled rotation and ion diamagnetic drift effects in QH-mode plasmas in DIII-D and JT-60U2021

    • Author(s)
      Aiba N.、Chen X.、Kamiya K.、Honda M.、Osborne T.H.、Burrell K.H.、Snyder P.B.
    • Organizer
      IAEA Fusion Energy Conference 2020
    • Related Report
      2021 Research-status Report
    • Int'l Joint Research
  • [Presentation] Development of a novel integrated model GOTRESS+ for predictions and assessment of JT-60SA operation scenarios including the pedestal2021

    • Author(s)
      Honda M.、Aiba N.、Seto H.、Narita E.、Hayashi N.
    • Organizer
      IAEA Fusion Energy Conference 2020
    • Related Report
      2021 Research-status Report
    • Int'l Joint Research
  • [Presentation] プロジェクト"MHDRK"の進展2021

    • Author(s)
      相羽信行
    • Organizer
      第10回IFERC-CSC研究会
    • Related Report
      2021 Research-status Report
  • [Presentation] 統合モデルGOTRESS+へのEPED1モデルの結合とJT-60SA運転シナリオ開発2020

    • Author(s)
      本多充,相羽信行,瀬戸春樹,成田絵美,林伸彦
    • Organizer
      日本物理学会秋季大会
    • Related Report
      2020 Research-status Report
  • [Presentation] 統合モデルGOTRESS+へのEPED1モデルの結合とJT-60SA運転シナリオ開発2020

    • Author(s)
      本多充,相羽信行,瀬戸春樹,成田絵美,林伸彦
    • Organizer
      第18回核燃焼プラズマ統合コード研究会
    • Related Report
      2020 Research-status Report
  • [Presentation] プロジェクトMHDRKの成果報告2020

    • Author(s)
      相羽信行
    • Organizer
      第9回IFERC-CSC研究会
    • Related Report
      2019 Research-status Report
  • [Presentation] Sudden loss of edge transport barrier (ELMs, filamentary bursts) in tokamaks and stellarators2019

    • Author(s)
      Nobuyuki Aiba
    • Organizer
      6th IAEA DEMO Programme Workshop
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] Impact of rotation and ion diamagnetic drift on MHD stability in quiescent H-mode plasmas2019

    • Author(s)
      N. Aiba, X. Chen, T. H. Osborne, S. Haskey, M. Honda, K. H. Burrell, P. B. Snyder
    • Organizer
      17th International Workshop on H-mode Physics and Transport Barriers
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research
  • [Presentation] Impact of rotation and ion diamagnetic drift on MHD stability in quiescent H-mode plasmas2019

    • Author(s)
      N. Aiba, X. Chen, T. H. Osborne, S. Haskey, M. Honda, K. H. Burrell, P. B. Snyder
    • Organizer
      第17回核燃焼プラズマ統合コード研究会
    • Related Report
      2019 Research-status Report
  • [Presentation] Impact of rotation and ion diamagnetic drift on MHD stability in quiescent H-mode Plasmas2018

    • Author(s)
      N.Aiba, X.Chen, T.H.Osborne, S.Haskey, M.Honda, K.H.Burrell, P.B.Snyder
    • Organizer
      第35回プラズマ・核融合学会年会
    • Related Report
      2018 Research-status Report

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Published: 2018-04-23   Modified: 2025-01-30  

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