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Abstract

The objective of the tokamak TCV (Tokamak à Configuration Variable) at the Centre de Recherches en Physique des Plasmas is to study the influence of elongation kappa (kappa = b/a = (half height of plasma/minor radius)) and strong shaping on tokamak performances. Since the plasma in TCV can be created with a large variety of shapes (elongation kappa from 1 up to 3, D and inverse-D shapes, etc), the auxiliary heating must be insensitive to the plasma configuration. Of all the heating methods (Alfvén Wave Heating, Ion Cyclotron Resonant Heating, Neutral Beam Injection, and Electron Cyclotron Resonant Heating (ECRH)), ECRH has the best operational flexibility for heating of a wide range of different configurations, relying on steerable mirrors to deliver the power locally to the plasma. Moreover, mode control, current drive and current profile modifications by off-axis heating are other features which can be achieved with Electron Cyclotron Wave (ECW). In this report, the theoretical predictions are presented for the absorption of and current drive (CD) efficiency due to ECW in TCV (Section 2). The description and the status of the implementation of the ECW system is described in Section 3.

Additional information

Authors: GOODMAN T, Ecole Polytechnique Fédérale de Lausanne, Centre da Recherches en Physique des Plasmas (CH);HENDERSON M, Ecole Polytechnique Fédérale de Lausanne, Centre da Recherches en Physique des Plasmas (CH);POCHELON A, Ecole Polytechnique Fédérale de Lausanne, Centre da Recherches en Physique des Plasmas (CH);ALBERTI S, Ecole Polytechnique Fédérale de Lausanne, Centre da Recherches en Physique des Plasmas (CH);TRAN M Q, Ecole Polytechnique Fédérale de Lausanne, Centre da Recherches en Physique des Plasmas (CH)
Bibliographic Reference: Report: LRP 556/96 EN (1996) 16pp.
Availability: Available from the Ecole Polytechnique Fédérale de Lausanne, Ecublens, CH-1015 Lausanne (CH)
Record Number: 199611378 / Last updated on: 1996-12-04
Category: PUBLICATION
Original language: en
Available languages: en