Transport Study for Radial Electric Field and Poloidal Ion Flow in Heliotron E
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概要
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Radial electric field, E., is obtained by imposing the ambipolar condition or solvingthe electric field diffusion equation in the transport code for Heliotron E. The latterapproach usually gives a little smaller lff.l than the former one. In the context ofneoclassical transport theory toroidal and poloidal ion flow are also calculated andcompared consistently with measured ion flow velocities at r/azO.7 -0.8 inHeliotron E ECRH experiments. Positive electric field is realized in the low densityregime fl<IXIO"m ' with a high heating power. E. changes from positive tonegative according to the increase of the density. It is pointed out that the edgeanomalous transport is essential to obtain the positive E. in the stationary state,which is different from Kovrizhnykh's conjecture that E. is negative or small positivewithin the neoclassical diffusion theory.heliotron, stellarator, torsatron, radial electric field, ion flow, transport
- 社団法人日本物理学会の論文
- 1991-03-15
著者
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Watanabe Kiyomasa
Nuclear Engineering Department Faculty Of Engineering Kyoto University
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NAKAMURA Yuji
Plasma Physics Laboratory, Kyoto University
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Watanabe K
National Institute For Fusion Science
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WAKATANI Masahiro
Nuclear Engineering Department,Faculty of Engineering,Kyoto University
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Wakatani Masahiro
Nuclear Engineering Department Faculty Of Engineering Kyoto University
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Nakamura Yuji
Plasma Physics Laboratory Kyoto University
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