Influence of κ -distributed ions on the two-stream instability

This paper is the first approach for analyzing the influence of κ -distributed particles on the modified two-stream instability (MTSI). It is assumed that the plasma consists of a magnetized Maxwellian electron contribution and unmagnetized κ -distributed ions drifting across the electrons. Within an electrostatic approximation, the influence of the κ parameter on the maximum growth rate of the MTSI is evaluated for the special case of parallel drift velocity and wave propagation.