Buneman-type streaming instability in a plasma with dust particulates

It is shown that the Buneman-type streaming instability maybe developed in a low-temperature collisionless plasma in the presence of highly charged im purities or dust and an ion flow. The important feature of the instability is that it takes place for supersonic as well as for subsonic velocities of the flow, thus being able to develop even in the pre-sheath and plasma bul k regions of low-temperature discharges where ion speeds are below the soun d velocity.