Interaction of Lower Hybrid Wave Fields with Drift-Cyclotron Loss-Cone Instability

摘要

The dispersion relation for the drift-cyclotron loss-cone (DCLC) mode in the presence of the lower hybrid wave is calculated using both electrostatic and finite beta models. It is found that there exists a critical beta, beta /sub c/, such that when beta > beta /sub c/, an rf wave of frequency omega sub 0 greater than the lower hybrid frequency omega /sub LH/ can stabilize the drift cyclotron loss cone mode in a mirror plasma. For beta < beta /sub c/, the rf wave can stabilize this mode only when the wave frequency omega /sub LH/ < omega sub 0 < omega *. In either case, if omega sub 0 is much greater than omega /sub LH/, the wave has little effect on the DCLC mode. (ERA citation 05:007864)