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Abstract

Lower hybrid current drive has proved very successful in a number of experiments, with a wave spectrum corresponding to a range of resonant parallel velocities extending from thermal to relativistic velocities. This paper examines the question of how a consistent population of suprathermal electrons is generated with a launched spectrum corresponding to velocities well above the bulk of the distribution function. It is shown that a model which includes nonlinear interactions is able to produce an upshift in the parallel refractive index sufficient to drive significant current.

Additional information

Authors: BRUDERER C, 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);APPERT K, Centre de Recherches en Physique des Plasmas, Ecole Polytechnique Fédérale de Lausanne (CH)
Bibliographic Reference: Article: Proceedings of Joint Varenna-Lausanne International Workshop on Theory of Fusion Plasmas, Varenna (IT), August 22-26, 1994, pp. 409-416
Record Number: 199510151 / Last updated on: 1995-08-22
Category: PUBLICATION
Original language: en
Available languages: en