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PLASMA TRANSPORT STUDY BY ANLYSIS FOR TRANSIENT RESPONSES TO APPLIED

Research Project

Project/Area Number 09680462
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field プラズマ理工学
Research InstitutionKYUSHU UNIVERSITY

Principal Investigator

ZUSHI Hideki  KYUSHU UNIVERSITY RESEARCH INSTITUTE FOR APPLIED MECHANICS ADVANCED FUSION RESEARCH CENTER, PROFESSOR, 応用力学研究所, 教授 (20127096)

Co-Investigator(Kenkyū-buntansha) WAKATANI Masahiro  KYOTO UNIVERSITY GRDUATE SCHOOL OF ENERGY SCIENCE, PROFESSOR, エネルギー科学研究科, 教授 (00109357)
Project Period (FY) 1997 – 1999
Project Status Completed (Fiscal Year 1999)
Budget Amount *help
¥2,500,000 (Direct Cost: ¥2,500,000)
Fiscal Year 1999: ¥800,000 (Direct Cost: ¥800,000)
Fiscal Year 1998: ¥800,000 (Direct Cost: ¥800,000)
Fiscal Year 1997: ¥900,000 (Direct Cost: ¥900,000)
Keywordsnon-uniform perturbation / pellet / current drive / lower hybrid waves / local heating / confinement improvement
Research Abstract

The purpose of this research is to resolve the plasma transport by analysing transient responses to local non-uniform perturbations. The following results are obtained.
(1)In Heliotron E internal disruption and reduction of the fast ion loss by ECRH are investigated in 1997. The hysteresis relation between the amplitude of the perturbation and the pressure gradient is obtained during the internal disruption process. This observation requires a new explanation for this process, which cannot be described by the linear theory. Although ECRH heats the elctrons and creates energetic electrons, the potential profile can be also changed. When the plasma potential becomes more positive, the reduction of the resonant fast ion loss is expected. This process is experimentally confirmed.
(2)In TRIQM-1M ion heating have been studied in LHCD plasmas in 1998 The effect of the distortion of the electron velocity distribution function is studied on the ion heating process. It is found that low frequency waves are excited by distorted electron distribution and transfer their energy to ions with perpendicular velocity component.
(3)The coupling between bi-directional lower hybrid waves and current carrying electrons are investigated in 1999. It is found that the current drive efficiency for the co-moving electrons shows a non linear response for the power ratio of the bi-directional waves. The abrupt current profile change from a peaked one to a flat one is observed as the ctr-travelling wave power is increased.

Report

(4 results)
  • 1999 Annual Research Report   Final Research Report Summary
  • 1998 Annual Research Report
  • 1997 Annual Research Report
  • Research Products

    (37 results)

All Other

All Publications (37 results)

  • [Publications] H. Zushi, et al,: "Recent Progress on TRIAM-1M"Nuclear Fsion. (掲載予定). (2000)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] H. Zushi, et al,: "High Ion Temperature Discharge and Its Long Sustainment In Both Limiter and Single-Null Configurations on TRIMA"Nuclear Fusion. 39. 1955-1963 (1999)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] H. Zushi, et al,: "High Ion Temperature Discharge and Its Long Sustainment In the Single-Null Configuration on TRIAM-1M"17th IAEA Int. Conference on Fusion Energy. EXP2-16 (1998)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] B. A. Carreras, V.E. Lynch, H. Zushi, et al: "Internal disruptions in Heliotron E"Physics of Plasmas. 5/10. 3700-3707 (1998)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] V. Yu. Sergeev, K. V. Khlopenkov, B. V. Kuteev, S. Sudo, K. Kondo, H. Zushi, et al: "Experiments on Li pellet injection into Heliotron E"Plasma Phys. Control. Fusion. 40. 1785-1801 (1998)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] S-I Itoh, K Itoh, H. Zushi, A. Fukuyama: "Physics of collapse events in toroidal plasmas"Plasma Phys. Control. Fusion. 40. 879-829 (1998)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] H. Zushi, M. Hosotsubo, M. Wakatani, et al.: "Self-organization mechanism of the pressure profile at the internal disruption in heliotron plasmas"Plasma Phys. Control. Fusion. 40. 779-784 (1998)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] M. Hosotsubo, H. Zushi, M. Wakatani, et al.: "Application of the Soft X-ray Tomography Analyses in Heliotron-E Plasma"J. Plasma Fusion SERIES. 1. 92-95 (1998)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] H. Zushi, Y. Suzuki, M. Hosotsubo, Y. Nakamura, M. Wakatani, et al: "Resistivity effects on the critical pressure gradient for the resistive interchange modes in heliotron E"16 th IAEA Fusion Energy Conference, Montreal. 2. 143-150 (1998)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] Y. Kurimoto, H. Zushi, et al: "Resistivity effects on the critical pressure gradient for the resistive interchange modes in heliotron E"Fusion Engineering and Design. 34-35. 539-542 (1997)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] H. Zushi, Y. Kurimoto, et al: "Electric field induced loss cone study by the charge exchange energy spectrum"Fusion Engineering and Design. 34-35. 527-530 (1997)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] H. Zushi, S. Itoh, et al,: "Recent Progress on TRIAM-1M'"Nucl. Fusion. in press. (2000)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] H. Zushi, K. Nakamura, et al: "'High ion Temperature discharges and its long sustainment in both limiter and single null configurations on TRIAM-1M'"Nuclear Fusion. 39. 1955-1963 (1999)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] H. Zushi, K. Nakamura, et al: "'High ion Temperature discharges and its long sustainment in the single null configuration on TRIAM-1M'"17ィイD1thィエD1 IAEA Fusion Energy Conference, Yokohama. IAEA-CN-64/EX-CP2. (1998)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] B. A. Carreras, V. E. Lynch, H. Zushi et al: "Internal disruptions in Heliotron E'"Physics of Plasma. 5. 3700-3707 (1998)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] V. Yu. Sergeev, K. V. Khlopenkov, B. V. Kuteev, S. Sudo, K. Kondo, H. Zushi, et al: "Experiments on Li pellet injection into Heliotron E'"Plasma Phys. Control. Fusion. 40. 1785-1801 (1998)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] S.-I. Itoh, K. Itoh, H. Zushi, A. Fukuyama: "'Phys. of collapse events in toroidal plasmas'"Plasma Phys. Control. Fusion. 40. 879-929 (1998)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] M. Hosotsubo, H. Zushi, M. Wakatani, et al: "'Application of the Soft X-ray Tomography Analyses in Heliotron-E Plasma'"J. Plasma Fusion SERIES. 1. 92-95 (1998)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] H. Zushi, M. Hosostsubo, M. Wakatani, et al: "'Self-organizaion mechanism of the pressure profile at the internal disruption in heliotron plasmas'"Plasma Phys. Control. Fusion. 40. 779-784 (1998)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] H. Zushi, Y. Suzuki, M. Hosotsubo, Y. Nakamura, M. Wakatani, et al: "'Resistivity effects on the critical pressure gradient for the resistive interchange modes in heliotron E'"16ィイD1thィエD1 IAEA Fusion Energy Conference, Montreal,. 2. 143-150 (1998)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] Y. Kurimoto, H. Zushi, et al: "'Investigation of ECRH effects on the fast ion slowing-down process and confinement'"Fusion Engineering and Design. 34-35. 539-542 (1997)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] H. Zushi, Y. Kurimoto, et al: "'Electric field induced loss cone study by the charge exchange energy spectrum'"Fusion Engineering and Design. 34-35. 527-530 (1997)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] H.Zushi, et al,: "Recent Progress on TRIAM-1M"Nuclear Fusion. (掲載予定). (2000)

    • Related Report
      1999 Annual Research Report
  • [Publications] H.Zushi, et al,: "High Ion Temperature Discharge and Its Long Sustainment In Both Limiter and Single-Null Configurations on TRIAM-1M"Nuclear Fusion. 39. 1955-1963 (1999)

    • Related Report
      1999 Annual Research Report
  • [Publications] H.Zushi, et al,: "High Ion Temperature Discharge and Its Long Sustainment In The Single-Null Configurations on TRIAM-1M"17^<th> IAEA Int.Conference on Fusion Energy. EXP2-16 (1998)

    • Related Report
      1999 Annual Research Report
  • [Publications] B.A.Carreras,V.E.Lynch,H.Zushi, et al,: "Internal disruptions in Heliotron E"Physics of Plasmas. 5/10. 3700-3707 (1998)

    • Related Report
      1999 Annual Research Report
  • [Publications] V.Yu.Sergeev,K.V.Khlopenkov,B.V.Kuteev,S.Sudo,K.Kondo,H.Zushi, et al,: "Experiments on Li pellet injection into Heliotron E"Plasma Phys.Control.Fusion. 40. 1785-1801 (1998)

    • Related Report
      1999 Annual Research Report
  • [Publications] H. Zushi, et al,: "High Ion Temperature Discharge and Its Long Sustainment In the Single-Null Configuration on TRIAM-1M" 17^<th> IAEA Int. Congerence on Fusion Energy. EXP2-16 (1998)

    • Related Report
      1998 Annual Research Report
  • [Publications] B.A. Carreras, V.E. Lynch, H. Zushi, et al: "Internal disruptions in Heliotron E" Physics ofPlasmas. 5/10. 3700-3707 (1998)

    • Related Report
      1998 Annual Research Report
  • [Publications] V.Yu. Sergeev, K.V. Khlopenkov, B.V. Kuteev, S. Sudo, K. Kondo, H.Zushi, et al,: "Experiments on Li pellet injection into Heliotron E" Plasma Phys. Control. Fusion. 40. 1785-1801 (1998)

    • Related Report
      1998 Annual Research Report
  • [Publications] S-I Itoh, K Itoh, H. Zushi, A. Fukuyama: "Physics of collapse events in toroidal plasmas" Plasma Phys. Control. Fusion. 40. 879-929 (1998)

    • Related Report
      1998 Annual Research Report
  • [Publications] H. Zushi, M. Hosotsubo, M. Wakatani, et al.: "Self-organaization machanism of the pressure profile at the internal disruption in heliotron plasmas" Plasma Phys. Control. Fusion. 40. 779-784 (1998)

    • Related Report
      1998 Annual Research Report
  • [Publications] H.Zushi,et al.: "Self-Organization Mechanism of the Pressure Profile at the Internal Disruption in Heliotron Plasmas" Plasma Physics and Controlled Fusion. (印刷中). (1998)

    • Related Report
      1997 Annual Research Report
  • [Publications] M.Hosotsubo,H.Zushi,et al: "Application of the Soft X-ray Tomography Analyses in Heliotron-E Plasmas." J.Plasma and Fusion Ressearch. (印刷中). (1998)

    • Related Report
      1997 Annual Research Report
  • [Publications] H.Zushi et al,: "Resistivity Effects on the Critical Pressure Gradient for the Resistive Interchange Modes in Heliotron E" Proc.the 16th Int.Conf.on Fusion Energy. 2. 143-150 (1997)

    • Related Report
      1997 Annual Research Report
  • [Publications] H.Zushi,et al.: "Electric Field Induced Loss Cone Study by the Charge Exchange Energy Spectrum" Fusion Engneering and Design. 34-35. 527-530 (1997)

    • Related Report
      1997 Annual Research Report
  • [Publications] Y.Kurimoto H.Zushi,et al: "Investigation of ECRH effects on the fast ion slowing-down process and confinement" Fusion Engineering and Design. 34-35. 539-542 (1997)

    • Related Report
      1997 Annual Research Report

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Published: 1997-04-01   Modified: 2016-04-21  

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