Abstract
Alfven wave heating experiments have been carried out in the TCA Tokamak. RF power up to 75% of the value of the ohmic heating power has been delivered to the plasma. Increases in axial electron temperature of up to 80% ( Delta Te approximately 400 eV) and in axial ion temperature of up to 50% ( Delta Ti approximately 75 eV) have been measured. The RF pulse is accompanied by an increase in the radiated power loss, which becomes peaked on axis, and which is due to line emission by impurities predominantly iron.
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