Direct Measurement of the Damping of Toroidicity-Induced Alfven Eigenmodes

This Letter presents the first direct experimental measurements of the damping of toroidicity-induced Alfven eigenmodes (TAE), carried out in the JET tokamak. These measurements were obtained during the first experiments to drive these modes with antennas external to a tokamak plasma. Different regimes corresponding to different dominant TAE absorption mechanisms with a wide range of damping rates, 10(-3) less than or equal to gamma/omega less than or equal to 10(-1), have been identified in Ohmically heated plasma discharges.


Published in:
Physical Review Letters, 75, 4, 645-648
Year:
1995
ISSN:
0031-9007
Keywords:
Laboratories:
SPC
CRPP




 Record created 2008-04-16, last modified 2018-01-28


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