Alfvén-Wave Heating in the Proto-Cleo Stellarator
1976; American Physical Society; Volume: 37; Issue: 19 Linguagem: Inglês
10.1103/physrevlett.37.1272
ISSN1092-0145
AutoresS. N. Golovato, J. L. Shohet, J. A. Tataronis,
Tópico(s)Astro and Planetary Science
ResumoGlobal excitation of Alfv\'en waves in the Proto-Cleo $l=3$ stellarator was accomplished by exciting a helical winding corresponding to a $q=3$ rational surface with a pulsed, high-power rf source. A doubling of both the electron and ion temperatures was observed, and a slight increase in the ratio of the temperatures with and without rf heating occurred at the predicted resonance locations. Enhanced loss also occurred during heating, with 2.5-kHz oscillations observable in a microwave interferometer signal after heating.
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