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Proceedings of the National Academy of Sciences of the United States of America logoLink to Proceedings of the National Academy of Sciences of the United States of America
. 1981 Jan;78(1):1–3. doi: 10.1073/pnas.78.1.1

Beta limits for torsatrons

F Bauer *, O Betancourt *, P Garabedian *, J L Shohet †
PMCID: PMC318974  PMID: 16592941

Abstract

An ideal magnetohydrodynamic equilibrium and stability code is used to study ballooning modes in torsatrons. The most dangerous modes turn out to be those with low poloidal and toroidal wave numbers. Beta limits for equilibrium and stability are determined for an [unk] = 2 ultimate torsatron with large [unk] = 1 and [unk] = 3 sidebands.

Keywords: stellarators, magnetohydrodynamics, equilibrium and stability code, magnetic surfaces, computational methods

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