Overview of alfven eigenmode experiments in jet

Results from the first experiments to drive Alfven Eigenmodes (AEs) with antennas external to a tokamak plasma are presented. In ohmically heated plasma discharges, direct experimental measurements of the damping of toroidicity induced AEs (TAEs) have allowed an identification of 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). In plasmas heated by ion cyclotron resonance heating, neutral beam injection heating, lower hybrid heating and high plasma current ohmic heating, a new class of weakly damped Alfven eigenmodes, the kinetic Alfven eigenmodes, predicted in theoretical models that include finite Larmor radius and finite parallel electric field effects, has been identified experimentally.


Published in:
Nuclear Fusion, 35, 12, 1485-1495
Year:
1995
ISSN:
0029-5515
Keywords:
Note:
4th IAEA Technical Committee Meeting
APR 25-28, 1995
PRINCETON, NJ
Laboratories:
SPC
CRPP




 Record created 2008-04-16, last modified 2018-09-13


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