Stabilization of external modes in tokamaks by resistive walls and plasma rotation
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.
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
Original language: en
Available languages: en