Drift Alfvén Waves in Tokamaks

197842 citationsJournal Article

Authors

K. T. Tsang · Oak Ridge National Laboratory

J. C. Whitson · Oak Ridge National Laboratory

J. D. Callen · Oak Ridge National Laboratory

Peter J. Catto · Oak Ridge National Laboratory

Julius Smith · Oak Ridge National Laboratory

Abstract

A new branch of solutions of the finite-beta drift-wave radial eigenmode equations has been found. The branch is heavily damped in the low-beta regime and identified with the shear Alfv\'en wave. This branch and the usual electrostatic branch are damped in a collisionless plasma. Including trapped electron effects introduces an instability which is potentially harmful to plasma confinement.

Topics & Keywords

Magnetic confinement fusion research Ionosphere and magnetosphere dynamics Tropical and Extratropical Cyclones Research

Publication Details

Published in: Physical Review Letters

Volume 41, Issue 8, pp. 557-561

DOI: 10.1103/physrevlett.41.557

Field-Weighted Citation Impact: 13.65

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Drift Alfvén Waves in Tokamaks

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Abstract

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Publication Details