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Integrated study of the physics of high-energy and thermalized particles toward the burning plasma research

Research Project

Project/Area Number 18K03587
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 Institute for Fusion Science

Principal Investigator

Shin Nishimura  核融合科学研究所, 研究部, 助教 (60311205)

Project Period (FY) 2018-04-01 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥2,340,000 (Direct Cost: ¥1,800,000、Indirect Cost: ¥540,000)
Fiscal Year 2020: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2019: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2018: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Keywords新古典理論 / 高エネルギー粒子 / ドリフト運動論的方程式 / Coulomb衝突 / 磁場閉じ込め核融合 / 非対称トーラス配位 / 燃焼およびNBI加熱プラズマ / 高速イオン / 新古典輸送 / 高エネルギー粒子物理 / 非対称トロイダル磁場配位 / MHD平衡 / 古典・新古典輸送 / 磁場閉じ込め核融合科学 / 輸送物理 / 加熱物理
Outline of Final Research Achievements

For the thermalized particle physics in situations including fast ions due to the heating and/or the nuclear reactions, theoretical studies on the fast ions are conducted. Main themes was (1) a benchmark test of the eigenfunction method and the adjoint equation method for neutral-beam(NB)-produced fast ions, (2) a theory of non-ambipolar radial transport of NB-produced fast ions, (3) a theory of spontaneous parallel flows of fusion-born fast ions, (4) a theory of energy-dependent Coulomb logarithm for the test particle portion in the linearized Coulomb collision operator, and (5) theoretical and experimental studies on an application of FIDA as a measurement of the charge exchange loss of NB-produced fast ions.

Academic Significance and Societal Importance of the Research Achievements

これ以前には高速イオン関係の理論検討やシミュレーション技法開発はもっぱら高速イオン自体の研究として行われており、一方熱化粒子の輸送理論や平衡理論は加熱や核融合反応で生じる高エネルギー粒子の存在を考慮せずに検討される事が多かった。本研究では熱化粒子の立場から見た高エネルギー粒子という観点で各種計算手法検討を行なっている点がユニークである。また検討された諸課題は特に今後の準対称配位実験(具体的には日中共同事業として準備が進められているCFQS)で重要になると考えられる物が多く、それに向けて実験技術上の課題も検討している。

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

    (13 results)

All 2024 2023 2022 2021 2020 2019 2018

All Journal Article (2 results) (of which Peer Reviewed: 2 results) Presentation (11 results) (of which Int'l Joint Research: 8 results)

  • [Journal Article] 高エネルギー粒子を含む問題におけるCoulomb衝突項2024

    • Author(s)
      西村伸, 奴賀秀男
    • Journal Title

      プラズマ核融合学会誌(小特集「古くて新しい新古典輸送理論の新展開」第3.2章)

      Volume: 5

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed
  • [Journal Article] On the anisotropic velocity distribution of fast ions in NBI-heated toroidal plasmas2018

    • Author(s)
      Shin Nishimura
    • Journal Title

      Physics of Plasmas

      Volume: 25 Issue: 4

    • DOI

      10.1063/1.5025212

    • NAID

      120007124601

    • Related Report
      2018 Research-status Report
    • Peer Reviewed
  • [Presentation] Application of FIDA as a charge exchange loss measurement for NB-produced fast ions in small or medium-size devices2023

    • Author(s)
      S.Nishimura, H.Yamaguchi, S.Kobayashi, S.Kado, T.Minami, S.Ohshima, H.Okada, Y.Nakamura, and K.Nagasaki
    • Organizer
      65th Annual Meeting of the APS-DPP (Oct.30-Nov.3, 2023, Denver) NP11:74
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 準対称配位新古典輸送計算のためのExBオペレータ2023

    • Author(s)
      西村伸, 佐竹真介, 山口裕之, 洲鎌英雄
    • Organizer
      プラズマ核融合学会第40回年会(2023.11.27-30, 盛岡) 30P14
    • Related Report
      2023 Annual Research Report
  • [Presentation] Non-ambipolar radial transport of tangentially injected NB-produced fast ions in quasi-axisymmetric stellarators2023

    • Author(s)
      S.Nishimura
    • Organizer
      EPS 49th Conference on Plasma Physics (July 3-7,2023, Bordeaux)
    • Related Report
      2022 Research-status Report
    • Int'l Joint Research
  • [Presentation] Application of FIDA as a charge exchange loss measurement for NB-produced fast ions in small or medium-size devices2022

    • Author(s)
      S.Nishimura, H.Yamaguchi, S.Kobayashi, S.Kado, T.Minami, S.Ohshima, H.Okada, Y.Nakamura, and K.Nagasaki
    • Organizer
      EPS 48th Conference on Plasma Physics (June 27-July 1,2022, Online)
    • Related Report
      2022 Research-status Report
    • Int'l Joint Research
  • [Presentation] 高速イオン荷電交換損失の計測としてのFIDAの応用2022

    • Author(s)
      西村伸, 山口裕之, 小林進二, 門信一郎, 南貴司, 大島慎介, 岡田浩之, 中村祐司, 長崎百伸
    • Organizer
      プラズマ核融合学会第39回年会(2022年11月22~25日, 富山市)
    • Related Report
      2022 Research-status Report
  • [Presentation] Application of FIDA as a charge exchange loss measurement for NB-produced fast ions in small or medium-size devices2022

    • Author(s)
      S.Nishimura, H.Yamaguchi, S.Kobayashi, S.Kado, T.Minami, S.Ohshima, H.Okada, Y.Nakamura, and K.Nagasaki
    • Organizer
      48th EPS Conference on Plasma Physics
    • Related Report
      2021 Research-status Report
    • Int'l Joint Research
  • [Presentation] Neoclassical parallel viscosity effects of fast ions in NBI-heated and/or burning plasmas in quasi-symmetric stellarators2021

    • Author(s)
      S.Nishimura and H.Yamaguchi
    • Organizer
      47th EPS Conference on Plasma Physics
    • Related Report
      2021 Research-status Report
    • Int'l Joint Research
  • [Presentation] Neoclassical parallel viscosity effects of fast ions in NBI-heated and/or burning plasmas in quasi-symmetric stellarators2020

    • Author(s)
      Shin Nishimura and Hiroyuki Yamaguchi
    • Organizer
      47th Annual EPS Plasma Conference (当初予定2020年6月であったが、アブストラクト受理後に延期が決定され、最終的には2021年6月21-25日にオンライン開催の予定)
    • Related Report
      2020 Research-status Report
    • Int'l Joint Research
  • [Presentation] 準軸対称ステラレータにおける 高速イオンの二つの新古典粘性効果2020

    • Author(s)
      西村伸, 山口裕之
    • Organizer
      日本物理学会第75回年次大会, 19aD11-5 (大会は中止で講演概要のみweb公開)
    • Related Report
      2019 Research-status Report
  • [Presentation] A Benchmark Test of the Eigenfunction Method and the 5D Simulation on the Fast Ion Slowing Down Velocity Distribution in the NBI-heated Helical Plasmas2019

    • Author(s)
      Shin Nishimura and Hiroyuki Yamaguchi
    • Organizer
      22nd International Stellarator/Heliotron Workshop (Sep.23-27,2019, Madison,WI,USA)
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research
  • [Presentation] A benchmark test of the eigenfunction method and the 5D simulation on the fast ion slowing down velocity distribution in the NBI-heated helical plasmas2018

    • Author(s)
      Shin Nishimura and Hiroyuki Yamaguchi
    • Organizer
      60th annual meeting of APS-DPP Nov.5-9,2018; Portland, OR
    • Related Report
      2018 Research-status Report
    • Int'l Joint Research

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

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