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Abstract

A new class of weakly damped Alfvén eigenmodes, the kinetic Alfvén eigenmodes, predicted in theoretical models which include finite Larmor radius and finite parallel electric field effects, has been identified experimentally for the first time in JET tokamak plasmas. Multiple peak structures in the TAE frequency region have been excited and detected by means of a dedicated active diagnostic in deuterium plasmas heated by ion cyclotron resonance heating, neutral beam injection heating, lower hybrid heating and high plasma current ohmic heating.

Additional information

Authors: FASOLI A ET AL., Centre de Recherches en Physique des Plasmas, Ecole Polytechnique Fédérale de Lausanne (CH);SHARAPOV S ET AL., FOM Instituut voor Plasmafysica, Rijnhuizen, Nieuwegein (NL);HOLTIES H A, JET Joint Undertaking, Abingdon, Oxon. (GB)
Bibliographic Reference: Report: LRP 517/95 (1995) 11 pp.
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: 199510794 / Last updated on: 1995-07-17
Category: PUBLICATION
Original language: en
Available languages: en