TRAPPING OF FAST MAGNETOACOUSTIC WAVES CLOSE TO AN X-LINE IN A TOROIDAL SYSTEM

Authors
FARINA D POZZOLI R
Citation
D. Farina et R. Pozzoli, TRAPPING OF FAST MAGNETOACOUSTIC WAVES CLOSE TO AN X-LINE IN A TOROIDAL SYSTEM, Physical review. E, Statistical physics, plasmas, fluids, and related interdisciplinary topics, 55(5), 1997, pp. 5909-5914
Citations number
12
Categorie Soggetti
Physycs, Mathematical","Phsycs, Fluid & Plasmas
Journal title
Physical review. E, Statistical physics, plasmas, fluids, and related interdisciplinary topics → ACNP
ISSN journal
1063651X
Volume
55
Issue
5
Year of publication
1997
Part
B
Pages
5909 - 5914
Database
ISI
SICI code
1063-651X(1997)55:5<5909:TOFMWC>2.0.ZU;2-Z
Abstract
The trapping of fast magnetoacoustic waves around the X line of a toro idal magnetic configuration is investigated in the framework of ideal magnetohydrodynamics using a WKB approach. The frequency spectrum and the relevant eigenmodes are determined for the hyperbolic case, and fo r a divertorlike geometry. Striking differences are pointed out, which are due to the breaking of the symmetry in the system.