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2008 Fiscal Year Annual Research Report

極低温環境下におけるコンプレックスプラズマの研究

Research Project

Project/Area Number 19340173
Research InstitutionYokohama National University

Principal Investigator

石原 修  Yokohama National University, 大学院・工学(系)研究科(研究院), 教授 (20313463)

Keywordsコンプレックスプラズマ / ダストプラズマ / クーロンクラスター / 自己組織化 / 強結合プラズマ / 極低温プラズマ / 微粒子 / 螺旋構造
Research Abstract

プラズマ中に数ミクロン程度の微粒子が存在し、微粒子とプラズマが相互作用する複合系はコンプレックスプラズマと呼ばれる。プラズマ中では微粒子は大きな帯電量を持つことが知られており、微粒子間に働くクーロンエネルギーがそれ自身の持つ熱エネルギーよりも大きくなり、微粒子群は強結合としての性質を示す。微粒子はその重い質量ゆえに室温においてはその運動エネルギーは大きくなり、比較的ゆるやかな強結合状態にあると考えられる。室温実験装置YCOPEXはほぼ水平に置かれた円筒状のガラス管で、r f放電によりプラズマを作り、そこに微粒子を注入して、大面積(1mx.2m)で2次元面でシース上に浮遊する微粒子クラスターの生成に成功している。CCDカメラにより微粒子の挙動を観測できるような工夫がされている。またガラス管を傾斜させることにより、微粒子に流れをつくり、流体としての微粒子群も観測した。常温コンプレックスプラズマに対して、液体ヘリウム蒸気中のコンプレックスプラズマでは微粒子の温度が下がり、したがって結合係数が非常に大きくなり一つ一つの微粒子を視覚的に観測できるような強結合系が実現される可能性がある。これまでに液体ヘリウムを使った環境下で、コンプレックスプラズマの実験的実現に向かって研究をすすめてきた。液体ヘリウム蒸気中で放電によりプラズマを安定に生成することに成功し、高速度CCDカメラを用いた3次元のPTV(Particle Tracking Velocimetory)観測システムを構築することで、プラズマ中に投入された微粒子の動的挙動を追い、帯電過程などについての温度依存性を明らかにしてきた。

  • Research Products

    (35 results)

All 2009 2008

All Journal Article (10 results) (of which Peer Reviewed: 8 results) Presentation (23 results) Book (2 results)

  • [Journal Article] Measurements of electric charge and screening length of micro-particles2009

    • Author(s)
      Y. Nakamura, O. Ishihara
    • Journal Title

      Physics of Plasmas 16

      Pages: 043704-1-043704-5

    • Peer Reviewed
  • [Journal Article] Coulomb cluster in a plasma under cryogenic environment2009

    • Author(s)
      J. Kubota, C. Kojima, W. Sekine, O. Ishihara
    • Journal Title

      Journal of Plasma and Fusion Research Series 8(未定)

    • Peer Reviewed
  • [Journal Article] Dust dynamics in cryogenic environment2009

    • Author(s)
      W. Sekine, O. Ishihara, M. Rosenberg
    • Journal Title

      Journal of Plasma and Fusion Research Series 8(未定)

    • Peer Reviewed
  • [Journal Article] Charging of Dust Particles in Magnetic Field2009

    • Author(s)
      Y. Tomita, T. Yamada, O. Ishihara
    • Journal Title

      Journal of Plasma and Fusion Research Series 8(未定)

    • Peer Reviewed
  • [Journal Article] Dust charge in collisional plasma in liquid helium vapor2009

    • Author(s)
      M. Shindo, N. Uotani, O. Ishihara
    • Journal Title

      Journal of Plasma and Fusion Research Series 8(未定)

    • Peer Reviewed
  • [Journal Article] A Complex plasma device of large surface area2008

    • Author(s)
      Y. Nakamura, O. Ishihara
    • Journal Title

      Review of Scientific Instruments 79

      Pages: 033504-1-033504-4

    • Peer Reviewed
  • [Journal Article] Dust Dynamics in Wake Channel2008

    • Author(s)
      C. Kojima, J. Kubota, Y. Tashima, O. Ishihara
    • Journal Title

      J. Jpn. Soc. Microgravity Appl. 25

      Pages: 353-356

    • Peer Reviewed
  • [Journal Article] Experiments of fine particle plasmas for observation of critical phenomena2008

    • Author(s)
      Y. Hayashi, K. Takahashi, H. Totsuji, O. Ishihara, s. Hamaguchi, N. Sato, Y. Watanabe, S. Adachi, M. Takayanagi
    • Journal Title

      J. Jpn. Soc. Microgravity Appl. 25

      Pages: 349-352

    • Peer Reviewed
  • [Journal Article] Ordering of Fine Particles in a Planar Magnetron Plasma2008

    • Author(s)
      Y. Hayashi, K. Takahashi, H. Totsuji, O. Ishihara, N. Sato, Y. Watanabe, s. Adachi
    • Journal Title

      AIP Proceedings 1041

      Pages: 221-222

  • [Journal Article] Dust Charge in Cryogenic Environment2008

    • Author(s)
      J. Kubota, C. Kojima, W. Sekine, O. Ishihara
    • Journal Title

      AIP Proceedings 1041

      Pages: 235-236

  • [Presentation] 微粒子プラズマ乱流生成の試み、2009

    • Author(s)
      齋藤和史, 中村良治, 小島力, 石原修
    • Organizer
      日本物理学会
    • Place of Presentation
      立教大学
    • Year and Date
      20090327-20090330
  • [Presentation] 現代プラズマ科学の最前線~学際連携によるプラズマ理工学のさらなる展開2009

    • Author(s)
      石原修
    • Organizer
      日本物理学会
    • Place of Presentation
      立教大学
    • Year and Date
      20090327-20090330
  • [Presentation] Dust charge in a plasma surrounded by cryogenic liquid2008

    • Author(s)
      J. Kubota, C. Kojima, K. Abe, O. Ishihara
    • Organizer
      9^<th> Workshop on fine particle plasmas
    • Place of Presentation
      Toki, Japan
    • Year and Date
      20081218-20081219
  • [Presentation] Charged dust floatation on the surface of liquid helium2008

    • Author(s)
      Chikara Kojima, Jumpei Kubota, Keita Abe, OsamuIshihara
    • Organizer
      9^<th> Workshop on fine particle plasmas
    • Place of Presentation
      Toki, Japan
    • Year and Date
      20081218-20081219
  • [Presentation] Variation of a macroscopic physical quantity in the presence of dust particles in a plasma2008

    • Author(s)
      K. Abe, C. Kojima, J. KubOta, O. Ishihara
    • Organizer
      9^<th> Workshop on fine particle plasmas
    • Place of Presentation
      Toki, Japan
    • Year and Date
      20081218-20081219
  • [Presentation] Charged dust particles on the surface of liquid helium2008

    • Author(s)
      Wataru Sekine, Osamu Ishihara
    • Organizer
      9^<th> Workshop on fine particle plasmas
    • Place of Presentation
      Toki, Japan
    • Year and Date
      20081218-20081219
  • [Presentation] Measurements of electric charge and screening length ofmicro-particles in a plasma sheath2008

    • Author(s)
      Y. Nakamura, O. Ishihara
    • Organizer
      9^<th> Workshop on fine particle plasmas
    • Place of Presentation
      Toki, Japan
    • Year and Date
      20081218-20081219
  • [Presentation] Charging of dust particles in weak magnetic field2008

    • Author(s)
      Y. Tomita, G. Kawamura, T. Yamada, O. Ishihara
    • Organizer
      9^<th> Workshop on fine particle plasmas
    • Place of Presentation
      Toki, Japan
    • Year and Date
      20081218-20081219
  • [Presentation] Planning of research project on fine particle plasmas2008

    • Author(s)
      Y. Hayashi, S. Iizuka, O. Ishihara, H. Totsuji, S. Adachi, T. Mieno, T. Masuzaki, T. Mukai, N. Sato, Y. Watanabe
    • Organizer
      9^<th> Workshop on fine particle plasmas
    • Place of Presentation
      Toki, Japan
    • Year and Date
      20081218-20081219
  • [Presentation] Charging of positively charged dust particle in weak magnetic field2008

    • Author(s)
      Y. Tomita, G. Kawamura, O. Ishihara
    • Organizer
      The 18th International Toki Conference
    • Place of Presentation
      Toki Gifu JAPAN
    • Year and Date
      20081209-20081212
  • [Presentation] マグネトロンプラズマを用いた微粒子プラズマ実験2008

    • Author(s)
      溝端洋平, 林康明, 高橋和夫, 佐藤徳芳, 渡辺征夫, 東辻浩夫, 石原修, 足立聡
    • Organizer
      日本マイクログラビテイ応用学会(JASMA)
    • Place of Presentation
      京都大学
    • Year and Date
      20081125-20081126
  • [Presentation] 極低温環境下における微粒子とプラズマの相互作用2008

    • Author(s)
      関根 航, 石原 修, M. R osenberg
    • Organizer
      日本物理学会
    • Place of Presentation
      岩手大学
    • Year and Date
      20080920-20080923
  • [Presentation] 極低温環境におけるプラズマ中の微粒子の帯電量2008

    • Author(s)
      久保田潤平, 小島力, 関根航, 中村良治, 石原修
    • Organizer
      日本物理学会
    • Place of Presentation
      岩手大学
    • Year and Date
      20080920-20080923
  • [Presentation] Dust Structures in Complex Plasma2008

    • Author(s)
      O. Ishihara, T. Kamimura
    • Organizer
      Satellite Meeting on Plasma Physics and Advanced Applications in ASO
    • Place of Presentation
      Kumamoto, Japan
    • Year and Date
      20080912-20080914
  • [Presentation] Electron acceleration by oscillating electric field2008

    • Author(s)
      A. Tsushima, O. Ishihara
    • Organizer
      International Congress on Plasma Physics
    • Place of Presentation
      Fukuoka, Japan
    • Year and Date
      20080908-20080912
  • [Presentation] Charging of Dust Particles in Magnetic Field2008

    • Author(s)
      Y. Tomita, T. Yamada, O. Ishihara
    • Organizer
      International Congress on Plasma Physics
    • Place of Presentation
      Fukuoka, Japan
    • Year and Date
      20080908-20080912
  • [Presentation] Observation of dusts structure in cryogenic environment2008

    • Author(s)
      J. Kubota, C. Kojima, W. Sekine, O. Ishihara
    • Organizer
      International Congress on Plasma Physics
    • Place of Presentation
      Fukuoka, Japan
    • Year and Date
      20080908-20080912
  • [Presentation] Dust dynamics in cryogenic environment2008

    • Author(s)
      W. Sekine, O. Ishihara, M. Rosenberg
    • Organizer
      International Congress on Plasma Physics
    • Place of Presentation
      Fukuoka, Japan
    • Year and Date
      20080908-20080912
  • [Presentation] Dust charge in collisional plasma in liquid helium vapor2008

    • Author(s)
      M. Shindo, N. Uotani, O. Ishihara
    • Organizer
      International Congress on Plasma Physics
    • Place of Presentation
      Fukuoka, Japan
    • Year and Date
      20080908-20080912
  • [Presentation] Ordering of Fine Particles in a Planar Magnetron Plasma2008

    • Author(s)
      Y. Hayashi, K. Takahashi, H. Totsuji, O. Ishihara, N. Sato, Y. Watanabe, S. Adachi
    • Organizer
      Fifth International Conference on Physics of Dusty Plasma
    • Place of Presentation
      Azores, Portugal
    • Year and Date
      20080518-20080521
  • [Presentation] Dust Charge in Cryogenic Environment2008

    • Author(s)
      J. Kubota, C. Kojima, W. Sekine, O. Ishihara
    • Organizer
      Fifth International Conference on Physics of Dusty Plasma
    • Place of Presentation
      Azores, Portugal
    • Year and Date
      20080518-20080521
  • [Presentation] Complex Plasma Research under Extreme Conditions2008

    • Author(s)
      O. Ishihara
    • Organizer
      Fifth International Conference on Physics of Dusty Plasma
    • Place of Presentation
      Azores, Portugal
    • Year and Date
      20080518-20080521
  • [Presentation] 2次元的な微粒子の挙動, (, )宇宙航空研究開発機構特別資料JAXA-.2008

    • Author(s)
      齋藤和史, 石原修, 中村良治
    • Organizer
      宇宙関連プラズマ研究会
    • Place of Presentation
      宇宙航空研究開発機構宇宙科学研究本部相模原市
    • Year and Date
      2008-12-16
  • [Book] Multifacets of Dusty Plasmas(執筆は一部 : Complex Plasma Research under Extreme Conditions)2008

    • Author(s)
      O. Ishihara (ed. by J. T. Mendonca, D. P. Resends, P. K. Shukla)
    • Total Pages
      139-142
    • Publisher
      American Institute of Physics
  • [Book] Nano- and Micromaterials(執筆は一部 : study of Complex Plasmas)2008

    • Author(s)
      M. Shindo, O. Ishihara (ed. by K. Ohno, M. Tanaka, J. Takeda, Y. Kawazoe)
    • Total Pages
      313-327
    • Publisher
      Springer

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Published: 2010-06-11   Modified: 2016-04-21  

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