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On Electrostatic Coupling in ICRH at the Plasma Edge
Author(s) -
Alava M. J.,
Heikkinen J. A.
Publication year - 1992
Publication title -
contributions to plasma physics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.531
H-Index - 47
eISSN - 1521-3986
pISSN - 0863-1042
DOI - 10.1002/ctpp.2150320324
Subject(s) - coupling (piping) , atomic physics , plasma , ion , physics , lower hybrid oscillation , resonance (particle physics) , amplitude , faraday cage , mode coupling , cyclotron , wave power , materials science , optics , magnetic field , power (physics) , nuclear physics , quantum mechanics , metallurgy
The mechanisms leading to a concomitant coupling of electrostatic (ES) waves in ion cyclotron range fast wave heating experiments are studied. Mode conversion at the lower hybrid resonance and direct coupling to ES waves due to the misalignment of the antenna Faraday shields are considered as sources of intense ES waves in the edge plasma. Ion acceleration by wave trapping is suggested as a mechanism that restricts the amplitude of the parasitic modes and creates energetic ions.