Rotation of Bulk Potential Waves in Cylindrical Waveguide with Partially Inhomogeneous Plasma Filling
摘要
Abstract
Propagation of bulk potential waves formed by superposition of helical harmonics with opposite azimuthal wavenumbers in a column of magnetized plasma is studied theoretically. The spectrum of bulk waves is calculated for a Gaussian density distribution. It is demonstrated that radial inhomogeneity of plasma in a metal waveguide with a vacuum gap at a certain frequency leads to a change in the direction of the bulk wave pattern rotation perpendicular to the waveguide axis.