Equilibrium and Stability of a Three-Dimensional Toroidal MHD Configuration Near its Magnetic Axis
Open Access
- 1 November 1976
- journal article
- Published by Walter de Gruyter GmbH in Zeitschrift für Naturforschung A
- Vol. 31 (11) , 1277-1288
- https://doi.org/10.1515/zna-1976-1102
Abstract
The expansion of a three-dimensional toroidal magnetohydrostatic equilibrium around its magnetic axis is reconsidered. Equilibrium and stability plasma-β estimates are obtained in connection with a discussion of stagnation points occurring in the third-order flux surfaces. The stability criteria entering the β-estimates are: (i) a necessary criterion for localized disturbances, (ii) a new sufficient criterion for configurations without longitudinal current. Hamada coordinates are used to evaluate these criteria.Keywords
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