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Author Intrator, T. ♦ Vukovic, M. ♦ Elfimov, A. ♦ Probert, P. H. ♦ Winz, G.
Source United States Department of Energy Office of Scientific and Technical Information
Content type Text
Language English
Subject Keyword PLASMA PHYSICS AND FUSION ♦ PHAEDRUS-T TOKAMAK ♦ ALFVEN WAVES ♦ CURRENT-DRIVE HEATING ♦ DISPERSION RELATIONS ♦ LANDAU DAMPING ♦ TOKAMAK DEVICES ♦ SPECTRAL ANALYSIS
Abstract In the Phaedrus-T tokamak [R. Majeski {ital et} {ital al}., Phys Fluids B {bold 5}, 2506 (1993)], Alfv{acute e}n waves are indirectly driven by a fast wave antenna array. Small fractions of minority ions can couple Alfv{acute e}n and ion{endash}ion hybrid waves and have a large effect on the wave numbers accessible for a given launched frequency. A discrete spectrum and toroidal damping for these modes has been identified by measuring dispersion properties at the edge. Landau damping is predicted to be large and spatially localized and to be responsible for the experimentally observed electron heating (T. Intrator {ital et} {ital al}., {open_quote}{open_quote}Alfv{acute e}n ion{endash}ion hybrid wave heating in the Phaedrus-T tokamak,{close_quote}{close_quote} to appear in Phys. Plasmas) and current drive near the core of the tokamak plasmas. {copyright} {ital 1996 American Institute of Physics.}
ISSN 1070664X
Educational Use Research
Learning Resource Type Article
Publisher Date 1996-03-01
Publisher Department University of Wisconsin
Publisher Place United States
Journal Physics of Plasmas
Volume Number 3
Issue Number 3
Organization University of Wisconsin


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