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Laboratory simulation of astrophysical phenomena via interaction between a low-pressure plasma and dynamic liquid metal

Research Project

Project/Area Number 21K18611
Research Category

Grant-in-Aid for Challenging Research (Exploratory)

Allocation TypeMulti-year Fund
Review Section Medium-sized Section 14:Plasma science and related fields
Research InstitutionTohoku University

Principal Investigator

Takahashi Kazunori  東北大学, 工学研究科, 准教授 (80451491)

Project Period (FY) 2021-07-09 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥6,370,000 (Direct Cost: ¥4,900,000、Indirect Cost: ¥1,470,000)
Fiscal Year 2023: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Fiscal Year 2022: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
Fiscal Year 2021: ¥2,470,000 (Direct Cost: ¥1,900,000、Indirect Cost: ¥570,000)
Keywords液体金属 / 低気圧プラズマ / 揺動 / 運動量放出 / スパッタリング / 磁場揺動 / プラズマ揺動
Outline of Research at the Start

本研究では,動的挙動を有する液体金属とプラズマが磁場を介して接触する状態を室内実験により構築し,導電性流体と磁場の相互作用,流体と磁場の乱れの発生,磁場の乱れを介したプラズマと導電性流体の相互作用等に関する実験研究を行う.これにより,天体内部の導電性流体が作り出す磁場構造と天体周辺のプラズマ現象を包括するような室内実験の構築へと挑戦する.特に,真空容器内部に3000rpm程度の高速回転が可能な回転駆動機構と低融点金属の加熱機構を設けることで,磁気レイノルズ数が1を大きく超えるような導電性流体を真空中に作り出し,プラズマとの相互作用を誘発しうる天体模擬実験へと挑戦する.

Outline of Final Research Achievements

A laboratory experiment on coexistence of a plasma and a dynamic liquid metal is successfully constructed, implying the fluctuation of the dynamic liquid metal transmits to the plasma core, where the liquid metal container can be rotated at the maximum frequency of 3000 rpm inside the vacuum chamber. The fluctuations at the fundamental and harmonic frequencies are generated by the rotating liquid metal; the measurement shows the change in the fluctuation behavior between the liquid and solid metals. Relating to an plasma-liquid interaction under low pressure conditions, the research is extended to the fundamental study on an electric propulsion device using a liquid propellant, where a water is chosen as the propellant. The thruster performance is experimentally characterized by the thrust measurement and a compact liquid propellant supply system is developed for a miniaturized electric propulsion device.

Academic Significance and Societal Importance of the Research Achievements

動的な液体金属とプラズマの相互作用は,天体内部の動的液体金属と惑星磁場の相互作用,そして周辺に存在するプラズマとの相互作用に直結する重要物理課題である.本研究で,室内実験において類似した環境を構築することで,惑星物理学の小型室内実験として展開できる可能性が見いだされたため,学術的な意義を有しているといえる.また,この発展研究として液体原料を用いた小型電気推進機の開発に着手し,安定した作動と推力発生を実証した.この成果は,近年開拓が進展する小型衛星を用いた宇宙開発・宇宙産業に対して貢献するものであり,通信網の構築などの展開の可能性がある.従って,社会的意義も大きいといえる.

Report

(4 results)
  • 2023 Annual Research Report   Final Research Report ( PDF )
  • 2022 Research-status Report
  • 2021 Research-status Report
  • Research Products

    (17 results)

All 2024 2023 2022 2021

All Journal Article (4 results) (of which Peer Reviewed: 4 results,  Open Access: 1 results) Presentation (13 results) (of which Int'l Joint Research: 8 results,  Invited: 5 results)

  • [Journal Article] Temporally resolved measurement of a force induced by a pulsed water-fueled magnetron sputtering source2024

    • Author(s)
      Sota Shimizu, Kazunori Takahashi
    • Journal Title

      Journal of Plasma Physics

      Volume: in press

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Comparison of vacuum-immersed helicon thrusters terminated by upstream magnetic and physical walls2023

    • Author(s)
      Kazunori Takahashi
    • Journal Title

      Journal of Physics D: Applied Physics

      Volume: 56 Issue: 47 Pages: 475207-475207

    • DOI

      10.1088/1361-6463/acef36

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Assessment of a thrust induced by a water-fueled magnetron sputtering source2023

    • Author(s)
      Shimizu Sota、Takahashi Kazunori
    • Journal Title

      Acta Astronautica

      Volume: 204 Pages: 370-375

    • DOI

      10.1016/j.actaastro.2023.01.014

    • Related Report
      2022 Research-status Report
    • Peer Reviewed
  • [Journal Article] Comparison of thrusts imparted by a magnetron sputtering source operated in DC and high power impulse modes2021

    • Author(s)
      Takahashi Kazunori、Miura Hidemasa
    • Journal Title

      AIP Advances

      Volume: 11 Issue: 10

    • DOI

      10.1063/5.0069184

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Presentation] Electron beam extraction from an inductively coupled radiofrequency plasma source2024

    • Author(s)
      Kodai Kikuchi, Kazunori Takahashi
    • Organizer
      ISPlasma2024/IC-PLANTS2024/APSPT-13
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 水燃料スパッタリング推進機に関する室内実験2024

    • Author(s)
      清水颯太,高橋和貴
    • Organizer
      2023年度宇宙輸送シンポジウム
    • Related Report
      2023 Annual Research Report
  • [Presentation] Performance assesment of a pulsed gaseous water-fueled magnetron sputtering source for a compact electric propulsion device2023

    • Author(s)
      Sota Shimizu, Kazunori Takahashi
    • Organizer
      The second International Fusion and Plasma Conference (iFPC 2023) and the 13th International Conference on Open Magnetic Systems for Plasma Confinement (OS 2023)
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Operating a magnetron sputtering electric propulsion device with a pulsed gaseous water propellant2023

    • Author(s)
      Sota Shimizu, Kazunori Takahashi
    • Organizer
      7th Asia-Pacific Conference on Plasma PHysics
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 小型電気推進システムの開発~Water-Fueled Sputtering Propulsion~2023

    • Author(s)
      清水颯太,高橋和貴
    • Organizer
      第40回 プラズマ・核融合学会 年会
    • Related Report
      2023 Annual Research Report
  • [Presentation] Fundamental studies and applications of magnetic nozzle plasma2023

    • Author(s)
      Kazunori Takahashi
    • Organizer
      International Conference on Phenomena in Ionized Gases XXXVth edition,
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] ミニマルファブ向けヘリコンプラズマ源を用いたマルチターゲットスパッタリング装置の開発2023

    • Author(s)
      高橋和貴
    • Organizer
      日本表面真空学会 スパッタリングおよびプラズマプロセス技術部会 第173回定例研究会
    • Related Report
      2022 Research-status Report
    • Invited
  • [Presentation] プラズマ材料科学分野の歴史と将来展望2023

    • Author(s)
      高橋和貴
    • Organizer
      JSPS プラズマ材料科学第153委員会 研究会
    • Related Report
      2022 Research-status Report
    • Invited
  • [Presentation] Measurement of a thrust induced by water-fueled magnetron sputtering source2022

    • Author(s)
      Sota Shimizu, Kazunori Takahashi
    • Organizer
      The 75th Annual Gaseous Electronics Conference
    • Related Report
      2022 Research-status Report
    • Int'l Joint Research
  • [Presentation] Measurement of a thrust induced by water-fueled magnetron sputtering source2022

    • Author(s)
      Sota Shimizu, Kazunori Takahashi
    • Organizer
      6th Asia Pacific Conference on Plasma Physics
    • Related Report
      2022 Research-status Report
    • Int'l Joint Research
  • [Presentation] Magnetic nozzle radiofrequency plasma systems for space and industry2022

    • Author(s)
      Kazunori Takahashi
    • Organizer
      The 31st International Toki Conference on Plasma and Fusion Research
    • Related Report
      2022 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] 水を燃料に用いたマグネトロンスパッタリングによる推力発生の実証2022

    • Author(s)
      清水颯太,高橋和貴
    • Organizer
      第66回宇宙科学技術連合講演会
    • Related Report
      2022 Research-status Report
  • [Presentation] Magnetic nozzles and plasma plumes2022

    • Author(s)
      Kazunori Takahashi
    • Organizer
      ExB Plasma Workshop R4
    • Related Report
      2021 Research-status Report
    • Int'l Joint Research / Invited

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Published: 2021-07-13   Modified: 2025-01-30  

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