ROTATION OF WEAKLY COLLISIONAL PLASMAS IN TOKAMAKS, OPERATED WITH ALFVEN WAVES

The effect of the kinetic Alfven waves on weakly collisional plasma ro tation in tokamaks has been studied for the plateau and banana regimes . The quasistationary rotation velocities and radial electric field ha ve been found. The estimation of these quantities for the Phaedrus-T t okamak [S. Wukitch et at, Phys. Rev. Lett. 77, 294 (1995)] and for the Joint European Torus (JET) [A. Fasoli et al., Nucl. Fusion, 36, 258 ( 1996)] has been presented. It is shown that the kinetic Alfven waves, which are needed for current drive, change weakly the quasistationary rotation velocities and radial electric field, as found from the exper imental data of these tokamaks. In conditions with increased rf power, the plasma rotation and radial electric field can essentially grow up . (C) 1996 American Institute of Physics.