FAST-WAVE FLOW DRIVE IN A 2-COMPONENT PLASMA WITH LOW MINORITY ION CONCENTRATION

Fast wave flow drive in a two-component plasma with low minority ion c oncentration is investigated. It is found that strongly sheared poloid al flow can be generated in a small region near the hybrid ion-ion res onance due the rapid spatial variation of the plasma velocity response to the fast wave electric field. The flow drive depends strongly on l ocal plasma temperatures and is shown to be very effective in the edge region of a tokamak where the plasma temperature is low. The result i s applied to a discussion of shear flow suppression of edge turbulence .