The effects of warmness plasma, and high frequency electrical field on beam-1 plasma interaction in plasma waveguide

We investigated in this paper the stabilizing effects of warmness plasma and a strong HF electrical field on a two-stream (Buneman) instability in a plane and cylindrical plasma waveguide. A mathematical technique “separation method” applied to the two-fluid plasma model to separate the equations, which describe the system, into two parts, temporal and space. Plasma electrons are considered to have a thermal velocity. It is shown that independent of the geometry of the problem the conclusion on the HF stabilization of Buneman instability in a plasma waveguide remains valid and the growth rate of the instability in warm plasma has been reduced compared to that of cold plasma. The influence of HF electric field on the instability of a low-density electron beam passing through warm plasma waveguide is also reported.