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2010 Fiscal Year Annual Research Report

磁化プラズマ電子-イオンハイブリッド温度勾配による乱流輸送新現象

Research Project

Project/Area Number 22340168
Research InstitutionTohoku University

Principal Investigator

金子 俊郎  東北大学, 大学院・工学研究科, 准教授 (30312599)

Co-Investigator(Kenkyū-buntansha) 加藤 俊顕  東北大学, 大学院・工学研究科, 助教 (20502082)
畠山 力三  東北大学, 大学院・工学研究科, 教授 (00108474)
Keywords電子温度勾配 / イオン温度勾配 / プラズマ乱流 / 輸送現象 / フロー速度シア
Research Abstract

核融合プラズマ閉じ込め装置での異常輸送の新たな要因として注目を集めている「電子温度勾配(ETG)不安定性(ETGモード)駆動乱流」の発生メカニズムとそれに伴う輸送現象を解明することを目的として,初年度は,電子温度の空間勾配を能動的に制御できる装置を開発し,電子温度勾配がプラズマ中の不安定揺動に及ぼす効果について調べた.
1. 高電子温度の電子サイクロトロン共鳴プラズマと低温の熱電子を,2種類のメッシュグリッドを用いて,空間制御して重畳した結果,ETGを制御して形成することに成功した.
2. ETGを形成することによって,周波数が4~8MHzの高周波揺動が励起されることが明らかになった.また,その揺動強度が,ETG強度に依存して変化することも観測されたため,この高周波揺動はETGモードであると結論づけられる.
3. ETGを形成した時,高周波揺動と同時に周波数が3~7kHzの低周波揺動も観測され,その揺動強度がETG強度に比例して増大することが分かった.この低周波揺動は,径方向の電位勾配,すなわちE×Bシアの強度が強い場合に励起されやすいことが観測されたため,ケルビンヘルムホルツ不安定性であると同定でき,それが高周波揺動との相互作用を介して,ETGにより変調され助長されたと考えられる.
4. バイスペクトル解析を用いてETGにより励起された高周波揺動と低周波揺動の相関関係を調べたところ,これらの二つの揺動間に特徴的なバイコヒーレンスが観測された.したがって,ETGは,電子が関与する高周波揺動のみならず,その高周波揺動との結合により低周波揺動に対しても作用することが明らかとなった.

  • Research Products

    (39 results)

All 2011 2010

All Journal Article (19 results) (of which Peer Reviewed: 19 results) Presentation (18 results) Book (1 results) Patent(Industrial Property Rights) (1 results)

  • [Journal Article] Electrically Moving Single-Stranded DNA into and out of Double-Walled Carbon Nanotubes2011

    • Author(s)
      Y.F.Li
    • Journal Title

      Chemical Communications

      Volume: 47 Pages: 2309-2311

    • Peer Reviewed
  • [Journal Article] Structural and Reactive Kinetics in Gas-Liquid Interfacial Plasmas2011

    • Author(s)
      T.Kaneko
    • Journal Title

      Plasma Sources Science and Technology

      Volume: (印刷中)

    • Peer Reviewed
  • [Journal Article] Plasma-Synthesized Single-Walled Carbon Nanotubes and Their Applications2011

    • Author(s)
      R.Hatakeyama
    • Journal Title

      Journal of Physics D : Applied Physics

      Volume: (印刷中)

    • Peer Reviewed
  • [Journal Article] Collisionless Drift Waves Ranging from Current-Driven, Shear-Modified, and Electron-Temperature-Gradient Modes2011

    • Author(s)
      R.Hatakeyama
    • Journal Title

      Contributions to Plasma Physics

      Volume: (印刷中)

    • Peer Reviewed
  • [Journal Article] Synthesis Evaluation of Nitrogen Atom Encapsulated Fullerenes by Optical Emission Spectra in Nitrogen Plasmas2010

    • Author(s)
      S.Miyanaga
    • Journal Title

      Thin Solid Filmes

      Volume: 518 Pages: 3509-3512

    • Peer Reviewed
  • [Journal Article] Control of Electron Temperature and Space Potential Gradients by Superposition of Thermionic Electrons on Electron Cyclotron Resonance Plasmas2010

    • Author(s)
      C.Moon
    • Journal Title

      Review of Scientific Instruments

      Volume: 81 Pages: 053506-1-053506-4

    • Peer Reviewed
  • [Journal Article] バイオ・医療応用におけるプラズマプロセス2010

    • Author(s)
      畠山力三
    • Journal Title

      化学工業

      Volume: 61 Pages: 362-370

    • Peer Reviewed
  • [Journal Article] Synthesis and Property Characterization of C_69N Azafullerene Encapsulated Single-Walled Carbon Nanotubes2010

    • Author(s)
      Y.F.Li
    • Volume
      4
    • Pages
      3522-3526
    • Peer Reviewed
  • [Journal Article] マイクロプラズマのナノバイオ分野への応用2010

    • Author(s)
      金子俊郎
    • Journal Title

      材料の科学と工学

      Volume: 47 Pages: 102-106

    • Peer Reviewed
  • [Journal Article] Narrow-Chirality Distributed Single-Walled Carbon Nanotubes Growth from Nonmagnetic Catalyst2010

    • Author(s)
      Z.Ghorannevis
    • Journal Title

      Journal of the American Chemical Society

      Volume: 132 Pages: 9570-9572

    • Peer Reviewed
  • [Journal Article] Applied Physics Letters2010

    • Author(s)
      R.Hatakeyama
    • Journal Title

      Infrared Photovoltaic Solar Cells Based on C_<60> Fullerene Encapsulated Single-Walled Carbon Nanotubes

      Volume: 97 Pages: 013104-1-3

    • Peer Reviewed
  • [Journal Article] 大気中電解質プラズマを用いた新機能性ナノバイオ物質創製2010

    • Author(s)
      金子俊郎
    • Journal Title

      高温学会誌

      Volume: 36 Pages: 162-167

    • Peer Reviewed
  • [Journal Article] Observation of Electron Temperature Gradient Driven Low-Frequency Instabilities in Magnetized Plasma2010

    • Author(s)
      C.Moon
    • Journal Title

      Journal of Plasma and Fusion Research SERIES

      Volume: 9 Pages: 436-440

    • Peer Reviewed
  • [Journal Article] New Aspects on Plasma Wave and Instability Phenomena in Basic-Plasma Experiments2010

    • Author(s)
      R.Hatakeyama
    • Journal Title

      Journal of Plasma Physics

      Volume: 76 Pages: 513-523

    • Peer Reviewed
  • [Journal Article] Measurements of Mode Structure of Shear-Modified Drift Wave Using Y-and T-Shaped Electrostatic Probes2010

    • Author(s)
      T.Kaneko
    • Journal Title

      Contributions to Plasma Physics

      Volume: 50 Pages: 796-801

    • Peer Reviewed
  • [Journal Article] プラズマで拓くナノカーボン・バイオ融合科学2010

    • Author(s)
      畠山力三
    • Journal Title

      月刊「ケミカルエンジニヤリング」

      Volume: 55 Pages: 896-902

    • Peer Reviewed
  • [Journal Article] Effects of Ionic Liquid Electrode on Pulse Discharge Plasmas in the Wide Range of Gas Pressures2010

    • Author(s)
      Q.Chen
    • Journal Title

      Journal of Applied Physics

      Volume: 108 Pages: 103301-1-103301-6

    • Peer Reviewed
  • [Journal Article] Encapsulation of Nickel Atom inside Fullerene by Energetic Ion Irradiation2010

    • Author(s)
      T.Umakochi
    • Journal Title

      Plasma and Fusion Research

      Volume: 6 Pages: 1206015-1-1206015-2

    • Peer Reviewed
  • [Journal Article] Nano-Bio Fusion Science Opened and Created with Plasmas2010

    • Author(s)
      R.Hatakeyama
    • Journal Title

      Plasma and Fusion Research

      Volume: 6 Pages: 1106011-1-1106011-12

    • Peer Reviewed
  • [Presentation] Generation of Controlled Gas-Liquid Interfacial Plasmas for Synthesis of Novel Nano-Bio Conjugates2011

    • Author(s)
      T.Kaneko
    • Organizer
      4th International Conference on Plasma-Nanotechnology & Science (IC-PLANTS)
    • Place of Presentation
      Takayama 招待講演
    • Year and Date
      2011-03-12
  • [Presentation] Periodic Nanoparticle Structure Formed by Controlled Gas-Liquid Interfacial Plasmas2011

    • Author(s)
      T.Kaneko
    • Organizer
      2nd International Workshop on Plasma Nano-Interfaces and Plasma Characterization
    • Place of Presentation
      Cerklje (Slovenia) 招待講演
    • Year and Date
      2011-03-02
  • [Presentation] Manipulation of DNA Molecules into and out of Carbon Nanotubes Using Liquid Related Plasmas2011

    • Author(s)
      T.Kaneko
    • Organizer
      The 12th International Workshop of Advanced Plasma Processing and Diagnostics
    • Place of Presentation
      Fukuoka 招待講演
    • Year and Date
      2011-01-06
  • [Presentation] High-Yield Synthesis and Characterization of Nitrogen Atom Encapsulated Fullerene by Using a Nitrogen RF-Plasma Technique2010

    • Author(s)
      S.Cho
    • Organizer
      2010 International Chemical Congress of Pacific Basin Societies
    • Place of Presentation
      Hawaii (USA)
    • Year and Date
      2010-12-19
  • [Presentation] Performance of Solar Cells Based on Single-Walled Carbon Nanotubes under the Illumination of Infrared Light2010

    • Author(s)
      R.Hatakeyama
    • Organizer
      2010 International Chemical Congress of Pacific Basin Societies
    • Place of Presentation
      Hawaii (USA)
    • Year and Date
      2010-12-18
  • [Presentation] Plasma Processing Challenge toward Carbon-Nanotube Chirality Control2010

    • Author(s)
      R.Hatakeyama
    • Organizer
      The Second International Symposium on Plasma Nanoscience
    • Place of Presentation
      New South Wales (Australia) 招待講演
    • Year and Date
      2010-12-13
  • [Presentation] Synthesis of Nanoparticles Conjugated with Carbon Nanotubes Using Gas-Liquid Interfacial Plasmas2010

    • Author(s)
      T.Kaneko
    • Organizer
      2010 IEEE Region 10 Conference
    • Place of Presentation
      Fukuoka
    • Year and Date
      2010-11-22
  • [Presentation] Nanoscopic Plasma Processes Controlling Structures and Properties of Carbon Nanotubes2010

    • Author(s)
      R.Hatakeyama
    • Organizer
      The 11th Asia Pacific Physics Conference
    • Place of Presentation
      Shanghai (China) 招待講演
    • Year and Date
      2010-11-18
  • [Presentation] Single-Stranded DNA Electrically Driven into and out of Double-Walled Carbon Nanotubes2010

    • Author(s)
      Y.F.Li
    • Organizer
      23rd International Microprocesses and Nanotechnology Conference
    • Place of Presentation
      Kokura (Japan)
    • Year and Date
      2010-11-11
  • [Presentation] Infrared Solar Cells Using Plasma-Processed Carbon Nanotubes2010

    • Author(s)
      T.Kaneko
    • Organizer
      AVS 57th International Symposium & Exhibition
    • Place of Presentation
      Albuquerque (USA)
    • Year and Date
      2010-10-18
  • [Presentation] DNA-Associated Synthesis of Gold Nanoparticles by Gas-Liquid Interfacial Pulse Discharge Plasma2010

    • Author(s)
      Q.Chen
    • Organizer
      63rd Gaseous Electron Conference & 7th International Conference on Reactive Plasmas
    • Place of Presentation
      Paris (France)
    • Year and Date
      2010-10-08
  • [Presentation] Structure Control and Etching Stabilities of Carbon Nanowalls Grown by Low Magnetic-Field Helicon Plasma CVD2010

    • Author(s)
      M.Yamazaki
    • Organizer
      63rd Gaseous Electron Conference & 7th International Conference on Reactive Plasmas
    • Place of Presentation
      Paris (France)
    • Year and Date
      2010-10-08
  • [Presentation] Plasma Processing Power for Nanocarbon Nanobioelectronics2010

    • Author(s)
      R.Hatakeyama
    • Organizer
      63rd Gaseous Electron Conference & 7th International Conference on Reactive Plasmas
    • Place of Presentation
      Paris (France) 招待講演
    • Year and Date
      2010-10-06
  • [Presentation] RF-Plasma Controlled High-Yield Synthesis and Properties of Nitrogen Endohedral Fullerene2010

    • Author(s)
      S.C.Cho
    • Organizer
      63rd Gaseous Electron Conference & 7th International Conference on Reactive Plasmas
    • Place of Presentation
      Paris (France)
    • Year and Date
      2010-10-06
  • [Presentation] Formation of Highly-Ordered Nanoparticle Structure Using Controlled Gas-Liquid Interfacial Plasma2010

    • Author(s)
      T.Kaneko
    • Organizer
      63rd Gaseous Electron Conference & 7th International Conference on Reactive Plasmas
    • Place of Presentation
      Paris (France)
    • Year and Date
      2010-10-05
  • [Presentation] Novel Biomedical System Using DNA Encapsulated Carbon Nanotubes Created in Electrolyte Plasmas2010

    • Author(s)
      R.Hatakeyama
    • Organizer
      3rd International Conference on Plasma Medicine
    • Place of Presentation
      Greifswald (Germany)
    • Year and Date
      2010-09-16
  • [Presentation] ナノエレクトロニクス実現に向けたプラズヤプロセスの到達点と展望2010

    • Author(s)
      畠山力三
    • Organizer
      平成22年秋季第71回応用物理学会学術講演会
    • Place of Presentation
      長崎市 招待講演
    • Year and Date
      2010-09-14
  • [Presentation] プラズマー液体界面形成とナノバイオ分野への応用2010

    • Author(s)
      金子俊郎
    • Organizer
      プラズマ科学のフロンティア2010研究会
    • Place of Presentation
      土岐市 招待講演
    • Year and Date
      2010-09-03
  • [Book] Ionic Liquids : Theory, Properties, New Approaches2011

    • Author(s)
      T.Kaneko
    • Total Pages
      533-548
    • Publisher
      In Tech
  • [Patent(Industrial Property Rights)] 反射防止光学構造付き基板およびその製造方法2010

    • Inventor(s)
      畠山力三
    • Industrial Property Rights Holder
      東北大学NTT-ATナノファブリケーション株式会社
    • Industrial Property Number
      特願2010-203141
    • Filing Date
      2010-09-10

URL: 

Published: 2012-07-19  

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