| Project/Area Number |
07044170
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| Research Category |
Grant-in-Aid for international Scientific Research
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| Allocation Type | Single-year Grants |
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| Section | Joint Research |
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| Research Institution | Kyushu Tokai University |
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Principal Investigator |
MITARAI Osamu School of Engineering, Kyushu Tokai University, 工学部, 教授 (00181925)
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| Co-Investigator(Kenkyū-buntansha) |
高村 秀一 名古屋大学, 工学部, 教授 (40023254)
CONWAY G. Dept.of Physics, Univ.of Saskatchewan, 物理学科, 助教授
XIAO C. Dept.of Physics, Univ.of Saskatchewan, 物理学科, 助教授
HIROSE A. Dept.of Physics, Univ.of Saskatchewan, 物理学科, 教授
TAKAMURA S. Dept.of Engineering, Nagoya University
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| Project Period (FY) |
1995
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| Project Status |
Completed (Fiscal Year 1995)
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| Budget Amount *help |
¥1,600,000 (Direct Cost: ¥1,600,000)
Fiscal Year 1995: ¥1,600,000 (Direct Cost: ¥1,600,000)
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| Keywords | AC Tokamak / AC Operation / Tokamak Fusion Reactor / Steady state Power / Inductive Current Drive / Pulse Operation / Current Reversal / Dwell Time of Fusion Reactior |
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| Research Abstract |
An AC operation in tokamak fusion reactors is an attractive method to generate a steady state power with a small thermal storage, because the inductive current drive is highly efficient and independent of the plasma density in contrast to RF noninductive current drive.The experiment on the AC operation has been demonstrated in the STOR-1M and STOR-M (R=46cm, a=12cm, B_t=0.7T) tokamaks by this authur.AC tokamak operation with reactor relevant current has subsequently been achieved in JET.
In STOR-M experiments, however, the complete one cycle AC operation was not possible due to the incomplete feedback system.In this study, we report on the successful 1.5 cycle AC operation after modification of the feedback control system and Ohmic heating circuit, and hence on the establishment of the technology for the future multi-cycle AC operation in the STOR-M tokamak.
The medified Ohmic heating circuit with three capacitor banks was tested successfully with the copper wire to simulate the 1.5 cycle AC operation.The temporal evolution of the 1.5 cycle AC plasma operation in STOR-M has been demonstrated at the first time in the world as shown in Fig.1, while the short dwell time during the current reversal needs nore plasma optimizations.
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