• Search Research Projects
  • Search Researchers
  • How to Use
  1. Back to previous page

Plasma Transport Induced by Cyclotron Resonance

Research Project

Project/Area Number 03452280
Research Category

Grant-in-Aid for General Scientific Research (B)

Allocation TypeSingle-year Grants
Research Field プラズマ理工学
Research InstitutionTOHOKU UNIVERSITY

Principal Investigator

HATAKEYAMA Rikizo  Tohoku Univ.Fac.Engrg.,Asso.Prof., 工学部, 助教授 (00108474)

Co-Investigator(Kenkyū-buntansha) ISHIGURO Seiji  Tohoku Univ.Fac.Engrg.,Research Asso., 工学部, 助手 (10193301)
IIZUKA Satoru  Tohoku Univ.Fac.Engrg.,Asso.Prof., 工学部, 助教授 (20151227)
SATO Noriyoshi  Tohoku Univ.Fac.Engrg.,Prof., 工学部, 教授 (40005252)
Project Period (FY) 1991 – 1992
Project Status Completed (Fiscal Year 1992)
Budget Amount *help
¥6,700,000 (Direct Cost: ¥6,700,000)
Fiscal Year 1992: ¥700,000 (Direct Cost: ¥700,000)
Fiscal Year 1991: ¥6,000,000 (Direct Cost: ¥6,000,000)
KeywordsNonuniform rf / Traveling rf / Cyclotron resonance / Particle drift / Plasma transport
Research Abstract

We obtained the following results on plasma transports induced by nonuniform or traveling radio-frequency (rf) fields with cyclotron frequencies. 1. It is theoretically found that plasma particles drift in the radially-outward direction under axisymmetric rf fields with radially-increasing amplitude. 2. This is demonstrated in the Q-machine experiment where electromagnetic fields around the ion-cyclotron frequency are inductively excited by a multi-turn loop antenna (m=0). The plasma profile in the vicinity of the antenna is periodically modified to be largely peaked and hollow with the applied rf period. This large-scale expansion and compression of the plasma finally leads to the radially outward ion-drift, resulting in a high-energy ion collision with the antenna. 3. Far from the antenna along the plasma flow, on the other hand, radial profiles of density and ion perpendicular temperature show stationary peaks at the plasma-column center, where antenna near-fields spatially damp but a plasma (ion Berstein) wave still persists. 4. In order to explain this peaking phenomenon observed, a new mechanism is pro-posed on plasma particle drifts due to perpendicularly traveling waves with cyclo-tron frequencies. The theory including physical picture, analytic solution and numerical analysis is successfully developed. 5. According to our theory it is expected that plasma particles drift in the radi-ally-outward or -inward direction, depending on the propagation direction of rf fields. Thus, we continue to demonstrate this transport principle experimentally by setting an antenna array in the Q-machine, where the azimuthal mode of traveling waves is externally controlled.

Report

(3 results)
  • 1992 Annual Research Report   Final Research Report Summary
  • 1991 Annual Research Report
  • Research Products

    (21 results)

All Other

All Publications (21 results)

  • [Publications] Rikizo Hatakeyama: "Plasma Particle Driots Due to Traveling Waves with Cyclotron Freguencies" J.Phys.Soc.Japan. 60. 2815-2818 (1991)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1992 Final Research Report Summary
  • [Publications] Rikizo Hatakeyama: "An Efficient Mars Separation by Using Traveling Waves with Jon Cyclotron Freguencies" Nucl.Msts.and Meth. B70. 21-25 (1992)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1992 Final Research Report Summary
  • [Publications] Rikizo Hatakeyama: "Mward and Outward Plasma Motion Mduced by axisymmetaic electromagnatic Fields around the lon cyclotron Fraguency" Proc.1992 Mt.Conf.on Plasma Physies,Mnsbruck Austria. 16C. 1709-1712 (1992)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1992 Final Research Report Summary
  • [Publications] Testu Mieno: "generation of Jon Cyclotron Wave in an Jon Bean by a Periodic Magnetic Field" Proc.1992 Mt.Conf on Plasma Physies,Musbruck Austria. 16C. 1919-1922 (1992)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1992 Final Research Report Summary
  • [Publications] Norigoshi Sato: "Ion Cyclotron Osiillations Mdvced by an Emissive Electrode Floating in a Magnetiged Collisionless Plasma Column" Pvec 1992 Mt.Conf on Plasma Physits,Mrsbruck Austria. 16C. 1765-1768 (1992)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1992 Final Research Report Summary
  • [Publications] Testu Mieno: "Electron Cyclotron Emissin from Double Layers in Magnetized Plarmas" Proc 4th Sympo on Double Layers and Other Nonlinean Potential Structures in Plasmas. (1992)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1992 Final Research Report Summary
  • [Publications] HATAKEYAMA,Rikizo: "Plasma Particle Drifts Due to Traveling Waves with Cyclotron Frequencies." J. Phys. Soc. Japan. Vol.60, No.9. 2815-2818 (1991)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1992 Final Research Report Summary
  • [Publications] HATAKEYAMA,Rikizo: "An Efficient Mass Sopatration by Using Traveling Waves with Cyclotron Frequencies." Nucl. Instr. and Meth.Vol.B70. 21-25 (1992)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1992 Final Research Report Summary
  • [Publications] HATAKEYAMA,Rikizo: "Inward and Outward Plasma Motion Induced by Axisymmetric Electromagnetic Fields around the Ion Cyclotron Frequency." Proc. 1992 Int. Conf. on Plasma Physics. Vol.16C. 1709-1712 (1992)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1992 Final Research Report Summary
  • [Publications] MIENO,Tetsu: "Generation of Ion Cyclotron Wave in an Ion Beam by a Periodic Magnetic Field." Proc. 1992 Int. Conf. on Plasma Physics. Vol.16C. 1919-1922 (1992)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1992 Final Research Report Summary
  • [Publications] SATO,Noriyoshi: "Ion Cyclotron Oscillations Induced by an Emissive Electrode Floating in a Magnetized Collisionless Plasma Column." Proc. 1992 Int. Conf. on Plasma Physics. Vol.16C. 1765-1768 (1992)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1992 Final Research Report Summary
  • [Publications] MIENO,Testu: "Electron Cyclotron Emission from Double Layers in Magnetized Plasmas." Proc. 4th Sympo. on Double Layers and Other Nonlinear Potential Structures in Plasmas. (1992)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1992 Final Research Report Summary
  • [Publications] SATO,Naoyuki: "Plasma Potential Deformation Due to Localized Large-Amplitude Electron Plasma Waves." Geophys. Res. Lett.Vol.20,No.3. 181-184 (1993)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1992 Final Research Report Summary
  • [Publications] Rikizo Hatakeyama: "An Efficient mass Separation by Using Freveling Waves with lon Cyclotron Freguencies" Nucl.lnster.and Meth.B70. 21-25 (1992)

    • Related Report
      1992 Annual Research Report
  • [Publications] Rikizo Hatakeyama: "Inward and Outward Plasma Motion Induced by axisymmetric Electromagnetic Fields around the lon cyclstron Frequency" Proc.1992 lnt.Conf.on Plasma Physics.Innsbruck/Anstria. 16C. 1709-1712 (1992)

    • Related Report
      1992 Annual Research Report
  • [Publications] Testu Mieno: "Generation of Ion Cyclotron Wave in an Ion Beam by a Periodic Magnetic Field" Proc.1992 Int.Corf.on Plasma Physics,lnnsbuck/Austria. 16C. 1919-1922 (1992)

    • Related Report
      1992 Annual Research Report
  • [Publications] Noriyoshi Sato: "Ion Cyclotron oscillations Indueed by an Emissive Electrode Floating in a Megnetized Collisionless Plasma Column" Proc.1992 Int. Conf.on Plasma Physics,Insbruck/Austria. 16C. 1765-1768 (1992)

    • Related Report
      1992 Annual Research Report
  • [Publications] Testu Mieno: "Electron Cyclotron Emission from Double Layers in Magnetized Plasmas" Proc.4th Sympo.on Double Layers and other nonlinear Potential Stustures. (1992)

    • Related Report
      1992 Annual Research Report
  • [Publications] 畠山 力三: "サイクロトロン進行波による粒子ドリフトの物理的描像" 日本物理学会第48回年回構演予稿集. 30aZEI (1993)

    • Related Report
      1992 Annual Research Report
  • [Publications] Rikizo Hatakeyama: "Plasma Particle Dribts Due to Traveling Waves with Cyclotron Frequencies" J.Phys.Soc Japan. 60. 2815-2818 (1991)

    • Related Report
      1991 Annual Research Report
  • [Publications] Rikizo Hatakeyama: "An Efficient mass Separation by Using Traveling Waves with Ion Cyclotron Fnequlncies" Proc.12th Int.Conf.on Electromegnetic Isotope Separatos and Technigues Related to their Applications(to be published in 1992). (1992)

    • Related Report
      1991 Annual Research Report

URL: 

Published: 1991-04-01   Modified: 2016-04-21  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi