Moderate and low pressure glow discharge in the gap between two eccentric tubes

Physical electronics

The positive column of a low and moderate pressure glow discharge located between two dielectric cylindrical walls with noncoincident parallel axes has been considered, the discharge current being aligned along the axes. The electron temperature of such discharge plasma was shown to be higher than the one of traditional cylindrical geometry when the outer plasma radii being equal; but the spatial distribution of plasma density in the discharge cross-section can acquire the strong inhomogeneity in the azimuthal direction.