Geodesic Acoustic Waves in Hydromagnetic Systems

• DOI: 10.1063/1.1691835
• Publication Date: 2004-02-17T14:43:19Z
• Authors: Niels Winsor; John L. Johnson; John M. Dawson

In toroidal systems with geodesic curvature an electrostatic acoustic mode occurs with plasma motion in the magnetic surfaces, perpendicular to the field. In typical stellarators this mode should dominate ordinary sound waves associated with motion along the field.