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Abstract

Observation of direct electron heating by absorption of Alfvèn waves was sought by investigation of plasma dynamical response to Alfvèn wave heating and superposition of rf power and gas valve modulation. As no clear results were obtained, it was necessary to consider the possibility of a large fraction of rf power being dissipated by another mechanism. This might involve the very different ratio between the wave phase velocity and the electron thermal velocity in the edge and the central part of the plasma column.

Additional information

Authors: DUDOK DE WIT T, Centre de Recherches en Physique des Plasmas, École Polytechnique Fédérale de Lausanne (CH);JOYE B, Centre de Recherches en Physique des Plasmas, École Polytechnique Fédérale de Lausanne (CH);LISTER J B, Centre de Recherches en Physique des Plasmas, École Polytechnique Fédérale de Lausanne (CH);MORET J M, Centre de Recherches en Physique des Plasmas, École Polytechnique Fédérale de Lausanne (CH)
Bibliographic Reference: Paper presented: 16th European Conference on Controlled Fusion and Plasma Physics, Venezia (IT), March 13-17, 1989
Availability: Available from (1) as Paper EN 34437 ORA
Record Number: 198910612 / Last updated on: 1994-12-01
Category: PUBLICATION
Original language: en
Available languages: en