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1997 Fiscal Year Final Research Report Summary

トーラスプラズマ合体を用いた駆動型磁気リコネクションの実験的検証

Research Project

Project/Area Number 07044128
Research Category

Grant-in-Aid for international Scientific Research

Allocation TypeSingle-year Grants
SectionJoint Research
Research Field プラズマ理工学
Research InstitutionThe University of Tokyo

Principal Investigator

KATSURAI Makoto  Univ.Tokyo, Dept.Electrical Eng., Professor, 大学院・工学系研究科, 教授 (70011103)

Co-Investigator(Kenkyū-buntansha) パンフリー ニール  プリンストン大学, プラズマ物理研究所, 研究員
フォンゲラー シュバイク  プリンストン大学, プラズマ物理研究所, 主任研究員
YAMADA Masaaki  Princeton Univ., Plasma Physics Lab., Principal Research Physicist, プラズマ物理研究所, 主任研究員
カールスラッド ラッセル  プリンストン大学, 天文学科, 教授
ONO Yasushi  Univ.Tokyo, Dept.Electrical Eng., Associate Professor, 大学院・工学系研究科, 助教授 (30214191)
KULSRUD Russel M.  Princeton Univ., Dept.Astromy, Professor
ITAGAKI Toshifumi  Univ.Tokyo, Dept.Electrical Eng., Assistant Professor (60242012)
POMPHREY Neal  Princeton Univ., Plasma Physics Lab., Research Physicist
Project Period (FY) 1995 – 1997
KeywordsMagnetic Reconnection / Plasma Merging / Spheromak / Driven Reconnection Model / Tokamak / Anomalous Resistivity / Anomalou Ion Heating / FRC
Research Abstract

A laboratory experiment of magnetic reconnection has been developed in the TS-3 and TS-4 merging devices, using two colliding plasma toroids with cohelicity and counterhelicity. The conventional local 2-D reconnection was extended experimentally to global 3-D reconnections by introducing a new field component Bx parallel to the X-line, a global external force and a reconnection-driven global equilibrium transition. Selective ion heating accompanied by a 3-D field-aligned jet was documented during the counterhelicity reconnection without Bx, indicating its direct energy-conversion into the ion thermal energy. All of ion heating, current-sheet resistivity and reconnection rate increase significantly with decreasing Bx and with increasing external force, indicating three-component and driven features of reconnection. The anomalous sheet-current dissipation and the ion heating are both found to depend on whether the current-sheet is compressed shorter than the ion gyroradius or not.

  • Research Products

    (16 results)

All Other

All Publications (16 results)

  • [Publications] Y.Ono: "Slow Formation of Field-Reversed Configuration by Use of Merging Sphoromaks" Transaction of Fusion Technology. 27. 369-373 (1995)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Y.Ono et.al.: "Ion Acceleration and Direct Ion Heating in Three-Component Magnetic Reconnection" Physical Review Letters. 76. 3328-3331 (1996)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Y.Ono et al.: "Exparimental Observation of Direct Ion Heating/Acceleration During Merging Formation of FRC" Fusion Energy 1996. 2. 263-273 (1997)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Y.Ono et al.: "Exparimental Investigation of Three-Component Magnetic Reconnection by Use of Merging Spheromaks and Tokamaks" Physics of Plasmas. 4. 1953-1962 (1997)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] M.Yamada, Y.Ono et al.: "Identification of Y-Shaped and O-Shaped Diffusion Region during Magnetic Reconnection in Laboratory Plasma" Physical Review Letters. 78. 3117-3120 (1997)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] A.Morita, Y.Ono et al.: "Experimental Investigation on Tilt Stabilizing Effect of External Toroidal Field in Low Aspect Ratio Tokamak" Physics of Plasmas. 4. 315-322 (1997)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Y.Ono: "Slow Formation of Field-Reversed Configuration by Use of Two Merging Spheromaks" Transaction of Fusion Technology. Vol.27. 369-373 (1995)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] M.Yamada, N.Pomphrey, A.Morita, Y.Ono and M.Katsurai: "Study of the Ultra Low Aspect Ratio Tokamak, ULART" Transaction of Fusion Technology. Vol.27. 161-166 (1995)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Y.Ono, M.Yamada, T.Akao, T.Tajima and R.Matsumoto: "Ion Acceleration and Direct Ion Heating in Three-Component Magnetic Reconnection" Physical review Letters. Vol.76, No.18. 3328-3331 (1996)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] M.Yamada, N.Pomphrey, A.Morita, Y.Ono and M.Katsurai: "Global Stability Study of the Ultralow Aspect Ratio Tokamak, ULART" Nuclear Fusion. Vol.36, No.9. 1210-1216 (1996)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Y.Ono: "Relaxation of Merging Two Spheromaks to Field Reversed Configuration" Toyota Research Report. Vol.49. 83-96 (1996)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Y.Ono, M.Yamada, T.Akao, T.Tajima and R.Matsumoto: "Ion Acceleration and Direct Ion Heating in Three-Component Magnetic Reconnection" The University of Texas Report. DE-FG03-96ER-54346-742. 1-17 (1996)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Y.Ono, M.Katsurai, M.Inomoto, Y.Ueda, H.Yasuda and T.Itagaki: "Experimental Observation of Direct Ion Heating/Acceloration During Marging Formation of FRC" Fusion Energy 1996. Vol.2. 263-273 (1997)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Y.Ono, M.Inomoto, T.Okazaki and Y.Ueda: "Experimental Investigation of Three-Component Magnetic Reconnection by Use of Merging Spheromaks and Tokamaks" Physics of Plasmas. Vol.4, No.5, Pt.2 (Invited Paper). 1953-1962 (1997)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] A.Morita, Y.Ono, M.Katsurai and M.Yamada: "Experimental Investigation on Tilt Stabilizing Effect of External Toroidai Field in Low Aspect Ratio Tokamak" Physics of Plasmas. Vol.4, No.2. 315-322 (1997)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] M.Yamada, H.Ji S.Hsu, T.Carter, R.Kulsrud, Y.Ono and F.Perkins: "Identification of Y-Shaped and O-Shaped Diffusion Regions during Magnetic Reconnection in Laboratory Plasma" Physical Review Letters. Vol.78. 3117-3120 (1997)

    • Description
      「研究成果報告書概要(欧文)」より

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Published: 1999-03-16  

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