Excitation of global modes in TEXTOR and comparison with theory

P. Descamps, R. Koch, R. Van Nieuwenhove, G. Van Oost, G. Van Wassenhove, T. Delvigne, A. M. Messiaen, P. E. Vandenplas, R. R. Weynants

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Résumé

The excitation of fast-wave global eigenmodes is investigated both experimentally for TEXTOR and theoretically using a slab coupling mode. A brief comparison with a cylindrical model shows that in the TEXTOR situation no essential geometrical effect is left out by the slab code. The resonant behaviour associated with eigenmodes is studied for several signals: the resistance and inductance of the antennae the r.f. magnetic and electric field components picked up by probes at the plasma edge, and the power coupled to a fast-wave antenna used as a receiver. It is shown that all the major features of these signals linked to the existence of eigenmodes can be explained using the theoretical models.

langue originaleAnglais
Numéro d'article001
Pages (de - à)1109-1133
Nombre de pages25
journalPlasma Physics and Controlled Fusion
Volume33
Numéro de publication10
Les DOIs
étatPublié - 1991

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