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Spatiotemporal Structure Elucidation of Non-Neutral Plasma Transitioning to Density Limit and Its Application to High-Intensity Ion Beam Control

Research Project

Project/Area Number 17K05724
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Plasma science
Research InstitutionKanazawa University

Principal Investigator

Soga Yukihiro  金沢大学, 数物科学系, 助教 (90525148)

Co-Investigator(Kenkyū-buntansha) 菊池 崇志  長岡技術科学大学, 工学研究科, 准教授 (30375521)
Project Period (FY) 2017-04-01 – 2020-03-31
Project Status Completed (Fiscal Year 2019)
Budget Amount *help
¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000)
Fiscal Year 2019: ¥520,000 (Direct Cost: ¥400,000、Indirect Cost: ¥120,000)
Fiscal Year 2018: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Fiscal Year 2017: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
Keywords非中性プラズマ / 軸方向エネルギー分布計測 / 電子加速 / クーロン相互作用 / 粒子-粒子法 / ExBドリフト回転 / 空間電荷支配ビーム / プラズマ圧縮 / エネルギー分布計測 / 2流体不安定性 / 重イオン慣性核融合 / ブリルアン密度限界
Outline of Final Research Achievements

In order to simulate the pulse compression process in the energy driver of heavy ion inertial fusion, an experimental method using electron plasma and a calculation code were developed. In the experiment, in order to establish the basis of the compression process analysis, a new energy distribution measurement method and analysis method for the electron plasma with the two-stream were developed. Next, the electron plasma was compressed by the external potential operation, and as a result of tracking the energy change in the process, the significant increase of the plasma temperature which is corresponding to the beam emittance was observed. The energy relaxation process observed in the experiment could be reproduced by the three-dimensional multiparticle calculation.

Academic Significance and Societal Importance of the Research Achievements

人類の未来のエネルギー源として期待される核融合炉の有力な方式の一つに重イオン慣性核融合方式がある。この方式では核融合反応を起こすのに充分なパワーをもつパルス圧縮された重イオンビームをターゲットに照射する必要があるが,圧縮の際に空間電荷効果の影響でビーム品質が低下し,ターゲットへのエネルギー付与が阻害される。本研究では,実験検証が困難な重イオンビームに替えて物理的に等価である電子プラズマを対象とし,その緩和過程を追跡するための実験技術と計算コードの開発を行った。この成果は重イオンビームのパルス圧縮時に生じる物理現象を電子プラズマを用いて模擬するために有用であると考えている。

Report

(4 results)
  • 2019 Annual Research Report   Final Research Report ( PDF )
  • 2018 Research-status Report
  • 2017 Research-status Report
  • Research Products

    (13 results)

All 2020 2019 2018 2017

All Journal Article (4 results) (of which Peer Reviewed: 3 results,  Open Access: 3 results) Presentation (9 results) (of which Int'l Joint Research: 3 results)

  • [Journal Article] Numerical Analysis of Relaxation Process with Fast Particle Generation in Malmberg-Penning Trap Experiment for Ion Beam Inertial Fusion2020

    • Author(s)
      Suzutani Nozomi、Park Youngsoo、Soga Yukihiro、Takahashi Kazumasa、Sasaki Toru、Kikuchi Takashi
    • Journal Title

      High Energy Density Physics

      Volume: May Pages: 100828-100828

    • DOI

      10.1016/j.hedp.2020.100828

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Study on Softening Parameter for Multi-Particle Simulation in Malmberg-Penning Trap Experiment2020

    • Author(s)
      Nozomi Suzutani, Youngsoo Park, Yukihiro Soga, Kazumasa Takahashi, Toru Sasaki, Takashi Kikuchi
    • Journal Title

      Transaction of the Japan Society for Simulation Technology

      Volume: 12 Issue: 1 Pages: 15-20

    • DOI

      10.11308/tjsst.12.15

    • NAID

      130007839908

    • ISSN
      1883-5031, 1883-5058
    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] A Single-Shot Method for Measuring the Energy Spectra of Pure Electron Plasmas Driven by E × B Rotation2019

    • Author(s)
      Youngsoo PARK, Yukihiro SOGA, Masayuki SATO, Nozomi SUZUTANI and Takashi KIKUCHI
    • Journal Title

      Plasma and Fusion Research

      Volume: 14 Issue: 0 Pages: 1201046-1201046

    • DOI

      10.1585/pfr.14.1201046

    • NAID

      130007649946

    • ISSN
      1880-6821
    • Year and Date
      2019-02-25
    • Related Report
      2018 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] 重イオン慣性核融合の大電流ビーム圧縮のための電子ビームシミュレータ2017

    • Author(s)
      菊池崇志,曽我之泰,堀岡一彦
    • Journal Title

      J. Plasma Fusion Res.

      Volume: 93 Pages: 345-352

    • NAID

      40021315881

    • Related Report
      2017 Research-status Report
    • Open Access
  • [Presentation] 軸方向磁場印加空間へ入射した電子群緩和過程への軸方向端静電ポテンシャル分布の影響2020

    • Author(s)
      菊池崇志,鈴谷のぞみ,朴英樹,石井宏,曽我之泰,高橋一匡,佐々木徹
    • Organizer
      日本物理学会第75回年次大会
    • Related Report
      2019 Annual Research Report
  • [Presentation] 軸方向磁場印加空間へ入射した電子群緩和過程での軸方向端静電ポテンシャルの影響2019

    • Author(s)
      菊池崇志,鈴谷のぞみ,朴英樹,曽我之泰,高橋一匡,佐々木徹
    • Organizer
      日本物理学会2019年秋季大会
    • Related Report
      2019 Annual Research Report
  • [Presentation] ビーム速度を有する純電子プラズマの早い緩和機構の検討2019

    • Author(s)
      山村泰昭,曽我之泰,朴英樹,上田隼也,佐藤政行
    • Organizer
      2019年度日本物理学会北陸支部定例学術講演会
    • Related Report
      2019 Annual Research Report
  • [Presentation] ビーム入射で生成された純電子プラズマの早い緩和過程に対する閉じこめ電位の影響2019

    • Author(s)
      石井宏,曽我之泰,朴英樹,菊池崇志,鈴谷のぞみ
    • Organizer
      2019年度日本物理学会北陸支部定例学術講演会
    • Related Report
      2019 Annual Research Report
  • [Presentation] 1shot 画像計測による純電子プラズマのエネルギー分布関数の導出2019

    • Author(s)
      上田隼也,朴英樹,曽我之泰
    • Organizer
      2019年度日本物理学会北陸支部定例学術講演会
    • Related Report
      2019 Annual Research Report
  • [Presentation] Numerical Analysis of Relaxation Process with Fast Particle Generation in Malmberg-Penning Trap Experiment for Ion Beam Inertial Fusion2019

    • Author(s)
      Nozomi Suzutani, Takashi Kikuchi, Youngsoo Park, Yukihiro Soga, Kazumasa Takahashi, Toru Sasaki
    • Organizer
      11th International Conference on Inertial Fusion Sciences and Applications
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Simultaneous Multi-Bunch Irradiation System with Longitudinal Pulse Compression in Quantum Beam Inertial Fusion2019

    • Author(s)
      Takashi Kikuchi, Yukihiro Soga, Yosuke Yuri, Kazumasa Takahashi, Toru Sasaki, Kazuhiko Horioka, Ken Takayama
    • Organizer
      11th International Conference on Inertial Fusion Sciences and Applications
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Experimental study on axially compressed electron plasma for a simulator of space-charge dominated beam2018

    • Author(s)
      Yukihiro Soga, Youngsoo Park, Keisuke Sugimoto, Takashi Kikuchi
    • Organizer
      22nd International Symposium on Heavy Ion Fusion and Beam-Driven High Energy Density Science
    • Related Report
      2018 Research-status Report
    • Int'l Joint Research
  • [Presentation] ビーム速度成分を有する純電子プラズマの磁場方向エネルギー分布計測2018

    • Author(s)
      曽我之泰, 朴英樹, 杉本啓介, 菊池崇志
    • Organizer
      日本物理学会2018年秋季大会
    • Related Report
      2018 Research-status Report

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Published: 2017-04-28   Modified: 2021-02-19  

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