ABSORPTION OF RF POWER AND DRIVEN CURRENT IN THE PRESENCE OF A TOROIDAL ELECTRIC FIELD FOR A WEAK AND STRONG INJECTED POWER
The model used in the present work suffers from several limitations; in particular it treats only the one- dimensional Fokker-Planck equation, and uses a rude procedure to cope with the problem of runaway production. This model is local and devised to be used in a radial ? power deposition code. Nevertheless, it permits to relate grossly the local absorption to the total input power, which allows to draw the following conclusions from the above results. A saturation of the absorbed power is reached; this happens for injected power comparable to those observed experimentally. The "upshift" - required to account for the magnitude of the actually driven current - is provided by a secondary lobe like the one usually contained in the launched spectrum if this can penetrate into - or be created in - the plasma volume.
Bibliographic Reference: COURSE AND WORKSHOP ON APPLICATIONS OF RF WAVES TO TOKAMAK PLASMAS, VILLA MONASTERO, VARENNA (ITALY), SEPT. 5-14, 1985 PP. 758-763, VOL. II 908 P., 1985, VOL. I AND VOL. II WRITE TO MONOTYPIA FRANCHI, VIALE UMBRIA 28/C, 06012 CITTA DI CASTELLO, PERUGIA (I
Record Number: 1989124101400 / Last updated on: 1987-01-01
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