Collisional effects on the electrostatic dust cyclotron instability

A kinetic analysis of the electrostatic dust cyclotron instability in a wea kly ionized collisional dusty plasma is presented. In a plasma with negativ ely charged dust and a current along the magnet ic field B, it is found tha t the instability can be excited by ions drifting along B. The effect of du st-neutral collisions is stabilizing, while the effect of ion-neutral colli sions can be destabilizing. Possible applications to laboratory environment s are discussed.