A 2-D equilibrium model of toroidal belt pinches

E.J.M. Heesch, van, W. Schuurman

Research output: Contribution to journalArticleAcademicpeer-review

Abstract

An analytical method is described to extend an existing equilibrium model of a straight cylindrical plasma column with elliptic cross-section, traversed by a uniform axial current, and surrounded by a vacuum. This model is the zero order in a procedure in which the ideal MHD equations are linearized after the introduction of small perturbations which represent toroidicity, deviation from ellipticity and external force-free currents. The solution of the resulting equations is used to analyse the effects of the perturbations, major effects being the shift of stagnation points and reshaping of the outer flux surfaces. Numerical examples are given and a comparison is made with other existing theories and with belt screw-pinch experiments.
Original languageEnglish
Pages (from-to)1465-1475
Number of pages11
JournalPlasma Physics and Controlled Fusion
Volume26
Issue number12B
DOIs
Publication statusPublished - 1984

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