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Abstract

Numerical simulations of kinetic Alfvèn wave excitation were performed in cylindrical geometry using the ISMENE kinetic code which includes Landau damping, transit time magnetic pumping and certain equilibrium gradient terms. Although there is a striking similarity between the wavefields observed and predicted by kinetic theory, exact matching of the two should not be expected because the details of the wavefields depend on the profiles of plasma parameters. Experimental observations of the KAW in the TCA tokamak and numerical simulations using the ISMENE kinetic code are in excellent agreement. At a more basic level, the observed radial wavenumbers agree with the KAW dispersion relation. The attenuation of the wave amplitude is consistent with electron Landau damping.

Additional information

Authors: APPERT K, Centre de Recherches en Physique des Plasmas, Ecole Polytechnique Fédérale de Lausanne (CH);BORG G G, Centre de Recherches en Physique des Plasmas, Ecole Polytechnique Fédérale de Lausanne (CH);JOYE B, Centre de Recherches en Physique des Plasmas, Ecole Polytechnique Fédérale de Lausanne (CH);KNIGHT A J, Centre de Recherches en Physique des Plasmas, Ecole Polytechnique Fédérale de Lausanne (CH);LISTER J B, Centre de Recherches en Physique des Plasmas, Ecole Polytechnique Fédérale de Lausanne (CH);VACLAVIK J, Centre de Recherches en Physique des Plasmas, Ecole Polytechnique Fédérale de Lausanne (CH);WEISEN H, Centre de Recherches en Physique des Plasmas, Ecole Polytechnique Fédérale de Lausanne (CH)
Bibliographic Reference: Paper presented: 16th European Conference on Controlled Fusion and Plasma Physics, (IT) March 13-17, 1989
Availability: Available from (1) as Paper EN 34439 ORA
Record Number: 198910511 / Last updated on: 1994-12-01
Category: PUBLICATION
Original language: en
Available languages: en