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Experiment on Ion-Beam-Collider for D-^3He Fusion

Research Project

Project/Area Number 03680009
Research Category

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

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

Principal Investigator

MOHRI Akihiro  Kyoto Univ., Fac.of Integrated Human Studies, Professor, 総合人間学部, 教授 (10025926)

Co-Investigator(Kenkyū-buntansha) NAKAMURA S.  Kyoto Univ., Col. of Med. Tech., Professor, 医療短大, 教授 (50026796)
YOSHIKAWA K.  Kyoto Univ., Lab. of Atom. Energy,Professor, 原子エネルギー研究所, 教授 (00027145)
TANAKA H.  Kyoto Univ., Fac. of I.H.S., Assistant, 総合人間学部, 助手 (90183863)
MICHISHITA T.  Kyoto Univ., Fac. of I.H.S., Assistant, 総合人間学部, 助手 (00166050)
YUYAMA T.  Kyoto Univ., Fac. of I.H.S., Assistant, 総合人間学部, 助手 (90026815)
Project Period (FY) 1991 – 1992
Project Status Completed (Fiscal Year 1992)
Budget Amount *help
¥1,500,000 (Direct Cost: ¥1,500,000)
Fiscal Year 1992: ¥500,000 (Direct Cost: ¥500,000)
Fiscal Year 1991: ¥1,000,000 (Direct Cost: ¥1,000,000)
KeywordsD-^3He fusion / ion beam collider / direct energy converter / helicon wave / open system / magnetic insulation / mirror loss / D-He核融合 / 直接エネルギー変換 / 電磁場結合ポテンシャル / DーHe核融合 / イオンビ-ムコライダ- / 直接エネルギ-変換 / ミラ-損失
Research Abstract

This research was performed to examine a new method for D-^3He fusion. To generate the fusion reaction, counterstreaming energetic ions are produced and trapped in the radial effective potential well whichis formed by a radial electric field and an axial magnetic field. A 2D-Fokker-Plank code shows that a net fusion output is obtainable at an energy confinement time in a probably accessible range. Fundamental features of this method have been examined through experiments as follows.
(1) A dense plasma core as the ion source can be formed and maintained in a axial magnetic field. The core plasma is produced by exciting hilicon waves of a helical mode under preferential pumping of neutral gas.
(2) The core is biased at a high positive potential for ion beam extraction. Here, magnetic insulation well works to sustain the potential up to 3 kV at the magnetic field of 3 kG. The formed radial electric field becomes very strong at the core surface.
(3) Ions are easily extracted from the core plasma by the radial electric field and observed their orbits are in good agreement with the theoretical ones. Thus, counter-collisions among fast ions are really present.
(4) Fatal instabilities have not been observed yet.
The magnetic field available in the present stage is not enough to cause fusion. However, it will be possible if the field is increased to 5 kG or higher.

Report

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

    (3 results)

All Other

All Publications (3 results)

  • [Publications] H・TANAKA: "Experiment on Ion Beam collider for Advanced Fuel Fusion" Europhysics Conference on Controlled Fusion Plasma Physics. 15C. 217-220 (1991)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1992 Final Research Report Summary
  • [Publications] H. Tanaka et.al.: "Experiment on Ion Beam Collider for Advanced Fuel Fusion" Europhysics Conf. Abstrats, 18th European Conferece on Controlled Fusion and Plasma Physics. Vol.15C. 217-220 (1991)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1992 Final Research Report Summary
  • [Publications] 田中 仁: "Experiment on Ion Beam Collider for Advanced Fuel Fusion" Proc.of 18th European Conference on Confrolled Fusion and Plasma Physics. 15C PartII. 217-220 (1991)

    • Related Report
      1991 Annual Research Report

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

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