Alfven Wave Current Drive experiments in Phaedrus-T
- Department of Nuclear Engineering and Engineering Physics, University of Wisconsin---Madison, Wisconsin, 53706 (United States)
Following experimental demonstration of Alfv{acute e}n Wave Current Drive (AWCD) on the Phaedrus-T tokamak a redesigned high power antenna has been installed that couples 0.5 MW to the plasma. Evidence is shown for core electron heating coexisting with AWCD. There was no observable increase in the AWCD efficiency during these heating experiments, although the spread in {ital k}{sub {ital z}} launch made it difficult to determine if the ratio of wave phase speed to electron thermal speed was actually reduced and whether any decrease in efficiency due to changes in the electron trapping fraction occurred. Scans of toroidal magnetic field show systematic changes in the time dependence of the drop in loop voltage during the RF pulse. Reflectometer data indicates two radial locations for RF fluctuations. {copyright} {ital 1996 American Institute of Physics.}
- Research Organization:
- Univ. of Wisconsin, Madison, WI (United States)
- Sponsoring Organization:
- USDOE
- DOE Contract Number:
- FG02-88ER53264
- OSTI ID:
- 285385
- Report Number(s):
- CONF-9505105-; ISSN 0094-243X; TRN: 96:020015
- Journal Information:
- AIP Conference Proceedings, Vol. 355, Issue 1; Conference: 11. topical conference on radio frequency in plasmas, Palm Springs, CA (United States), 17-19 May 1995; Other Information: PBD: Feb 1996
- Country of Publication:
- United States
- Language:
- English
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