Stability Properties of a Field-Reversed Ion Layer in a Background Plasma,
MARYLAND UNIV COLLEGE PARK DEPT OF PHYSICS AND ASTRONOMY
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Stability properties of an intense proton layer P-layer immersed in a background plasma are investigated within the framework of a hybrid model in which the layer ions are described by the Vlasov equation, and the background plasma electrons and ions are described as macroscopic, cold fluids. Moreover, the stability analysis is carried out for frequencies near multiples of the mean rotational frequency of the layer. It is assumed that the layer is thin, with radial thickness 2a much smaller than the mean radius R sub 0. Electromagnetic stability properties are calculated for flute perturbations deldel z0 about a P-layer with rectangular density profile, described by the rigid-rotor equilibrium distribution function. Stability properties are investigated including the effects of the equilibrium magnetic field depression produced by the P-layer, transverse magnetic perturbations delta B not 0, small but finite transverse temperature of the layer ions, and the dielectric properties of the background plasma.
- Plasma Physics and Magnetohydrodynamics