THE EFFECT OF LOCALIZED WAVE POWER ABSORPTION ON ECRH DRIVEN CURRENTS IN A TOKAMAK
The current driven by electron cyclotron resonance heating in a Tokamak is shown to depend strongly on the poloidal angle at which the power is absorbed. This dependence arises because the ratio of passing to trapped electrons varies around each flux surface. A Fokker-Planck treatment is used to obtain the current as a function of poloidal angle, wave phase velocity and inverse aspect ratio. The effect offers the possibility of experimentally demonstrating the existence of trapped electrons in a Tokamak.
Bibliographic Reference: PLASMA PHYSICS, VOL. 25 (1983), NO. 4, PP. 447-453
Record Number: 1989122050400 / Last updated on: 1987-01-01
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