Coherent Modes in the Acoustic Frequency Range in Tokamaks

This paper presents a kinetic study of Geodesic Acoustic Modes and Beta Alfven Eigenmodes. The dispersion relations of both modes are similar, which make them difficult to discriminate. However their poloidal structures and excitation mechanisms are different, thus providing a way to characterize th...

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Bibliographic Details
Published in:AIP conference proceedings 2006-01, Vol.871 (1), p.342-349
Main Authors: Garbet, X, Falchetto, G, Ottaviani, M, Sabot, R, Sirinelli, A, Smolyakov, A
Format: Article
Language:English
Subjects:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY
ALFVEN WAVES
DISPERSION RELATIONS
FREQUENCY RANGE
ION ACOUSTIC WAVES
PLASMA
TORE SUPRA TOKAMAK
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Summary:This paper presents a kinetic study of Geodesic Acoustic Modes and Beta Alfven Eigenmodes. The dispersion relations of both modes are similar, which make them difficult to discriminate. However their poloidal structures and excitation mechanisms are different, thus providing a way to characterize them unambiguously. These results are briefly discussed in relation with reflectometry measurements on Tore Supra.
ISSN:0094-243X
1551-7616
DOI:10.1063/1.2404568