Shear AlfvÚn Mode Resonances in Nonaxisymmetric Toroidal Low-Pressure Plasmas - II. Singular Modes in the Shear AlfvÚn Continuum
The spatial dependence of modes in the shear AlfvÚn continuum on nonaxisymmetric toroidal magnetohydrodynamic plasma is investigated. As in configurations with plane or axial symmetry it is found that these modes may exhibit a singularity extended across whole "singular" magnetic surfaces. Nonaxisymmetry, however, changes the type of singularity from (in general) oscillating to (in general) logarithmic. If the nonaxisymmetry is too strong, the surface-covering property of the singular modes may be lost. Zero plasma pressure is assumed throughout.
Bibliographic Reference: Report: IPP III/264 EN (2000) 25 pp.
Availability: Available from the Max Planck Institut f³r Plasmaphysik, Euratom Association, Garching, M³nchen (DE)
Record Number: 200012779 / Last updated on: 2000-09-20
Original language: en
Available languages: en