Possible mechanisms for dust grain acceleration in plasmas

There exists conclusive evedince of charged dust grain acceleration in tokamak edges as well as in cosmic plasmas. Our objective here is to present an evaluative description of dust particle acceleration in magnetized dusty plasmas. Possible acceleration mechanisms involve ion drag force caused by plasma flow as well as strong ambipolar electric fields created by the ponderomotive force of large amplitude waves in magnetolasmas. Spatio-temporal scales over which the dust grain acceleration occurs are discussed.