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Abstract

A simple configuration that consists of a set of toroidal, helical and vertical field coils is used to calculate free boundary equilibria with nonzero plasma current and approximately helically symmetric plasma boundary shape. The amount of helical boundary deformation is controlled by the ratio of the current in the helical field coils to the current in the toroidal field coils. When this ratio is increased, the (m, n) = (2, 1) external kink is stabilized at beta approximately equal to 1% for inverse rotational transform profiles in the region q < 2 and an aspect ratio A approximately equal to 10.

Additional information

Authors: ARDELEA A, École Polytechnique Fédérale de Lausanne, Centre de Recherches en Physique des Plasmas (CH);COOPER W A. VILLARD L, École Polytechnique Fédérale de Lausanne, Centre de Recherches en Physique des Plasmas (CH)
Bibliographic Reference: Article: Plasma Physics and Controlled Fusion (1998)
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