Local Characteristic of Axisymmetric Alfvén Wave

Abstract

The local characteristic of the Alfvén wave excited by a Stix coil is investigated in a radially inhomogeneous plasma. It is observed that the wave field of the standing axisymmetric Alfvén wave is enhanced and the polarization sense changes at the resonance layer. It is also observed that the phase velocity of the propagating axisymmetric Alfvén wave varies radially and corresponds to the local Alfvén velocity.