Instabilities of a Plasma with Anisotropic Ion Temperature Penetrated by the Field of a Helicon Wave

Abstract

The contribution studies the behavior of instabilities, excited by the anisotropy of the distribution of ion velocities, in the case of a plasma penetrated by a helicon wave.The modification of dielectric properties of the plasma, induced by the helicon wave, influences substantially the onset of instabilities and reduces their growth rates.Thus a dynamic stabilization for some dangerous microinstabilities, which are based on collective interaction between both plasma species, could be achieved.