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Author(s):
H. Idei, K. Ida, H. Sanuki, S. Kubo, H. Yamada, H. Iguchi, S. Morita, S. Okamura, R. Akiyama, H. Arimoto, K. Matsuoka, K. Nishimura, K. Ohkubo, C. Takahashi, Y. Takita, K. Toi, K. Tsumori and I. Yamada
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Title:
Formation of Positive Radial Electric Field by Electron Cyclotron Heating in Compact Helical System
Date of publication:
July 1994
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Key words:
radial electric field, density pump-out, electron cyclotron heating, heliotron/torsatron, particle flux
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Abstract:
The radial electric field is driven to positive value by off-axis second harmonic electron cyclotron heating (ECH) in the Compact Helical System [Plasma Physics and Controlled Nuclear Fusion Research, 1988, Nice (International Atomic Energy Agency, Vienna, 1989) Vol.II p.411]. The observed positive electric field is associated with the outward particle flux enhanced with ECH. The enhanced particle flux triggered by the production of the electrons accelerated perpendicularly to the magnetic field with ECH results in the change of the electric field.
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