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Abstract

It is shown that low-n pressure driven external modes in tokamaks can be fully stabilised by resistive walls in combination with sonic rotation of the plasma. The stabilisation depends on the excitation of sound waves by the toroidal coupling to Alfvén waves and is affected by ion Landau damping. Two-dimensional stability calculations are presented to show the resulting gains in the beta limit.

Additional information

Authors: BONDESON A, Centre de Recherches en Physique des Plasmas, Ecole Polytechnique Fédérale de Lausanne (CH);WARD D J, Centre de Recherches en Physique des Plasmas, Ecole Polytechnique Fédérale de Lausanne (CH)
Bibliographic Reference: Report: LRP 488/93 EN (1993)
Availability: Available from Confédération Suisse, Centre de Recherches en Physique des Plasmas, Ecole Polytechnique Fédérale de Lausanne, 21 avenue des Bains, 1007 Lausanne (CH)
Record Number: 199410028 / Last updated on: 1994-11-28
Category: PUBLICATION
Original language: en
Available languages: en