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Abstract

This paper presents the first direct experimental measurements of the damping of toroidicity induced Alfvén eigenmodes (TAE), carried out in the JET tokamak. These measurements were obtained during the first experiments to drive these modes with antennas external to a tokamak plasma. Different regimes, corresponding to different dominant TAE absorption mechanisms with a wide range of damping rates, have been identified in ohmically heated plasma discharges using this new active diagnostic for Alfvén eigenmodes.

Additional information

Authors: FASOLI A ET AL., Centre de Recherches en Physique des Plasmas, Ecole Polytechnique Fédérale de Lausanne (CH);BORBA D ET AL., JET Joint Undertaking, Abingdon, Oxon. (GB)
Bibliographic Reference: Report: JET-P(95)02 EN (1995) 16 pp.
Availability: Available from the Publications Officer, JET Joint Undertaking, Abingdon, Oxon. OX14 3EA (GB)
Record Number: 199510796 / Last updated on: 1995-07-17
Category: PUBLICATION
Original language: en
Available languages: en