Geodesic Acoustic Mode: Difference between revisions
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(Created page with "The Geodesic Acoustic Mode (GAM) is a plasma oscillation occurring in toroidal confinement devices with the following properties: <ref>N. Winsor, J.L. Johnson and J.M. Dawson,...") |
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<ref>K.J. Zhao et al., ''Toroidal Symmetry of the Geodesic Acoustic Mode Zonal Flow in a Tokamak Plasma'', [[doi:10.1103/PhysRevLett.96.255004|Phys. Rev. Lett. '''96''' (2006) 255004]]</ref> | <ref>K.J. Zhao et al., ''Toroidal Symmetry of the Geodesic Acoustic Mode Zonal Flow in a Tokamak Plasma'', [[doi:10.1103/PhysRevLett.96.255004|Phys. Rev. Lett. '''96''' (2006) 255004]]</ref> | ||
* | * Radially localized | ||
* Axisymmetric (n=0) | * Axisymmetric (n=0) | ||
* Poloidally symmetric potential (m=0) and asymmetric density (m=1) perturbations | * Poloidally symmetric potential (m=0) and asymmetric density (m=1) perturbations | ||
Revision as of 12:08, 15 July 2014
The Geodesic Acoustic Mode (GAM) is a plasma oscillation occurring in toroidal confinement devices with the following properties: [1] [2]
- Radially localized
- Axisymmetric (n=0)
- Poloidally symmetric potential (m=0) and asymmetric density (m=1) perturbations
The GAM frequency is, approximately:
References
- ↑ N. Winsor, J.L. Johnson and J.M. Dawson, Geodesic Acoustic Waves in Hydromagnetic Systems, Phys. Fluids 11 (1968) 2448
- ↑ K.J. Zhao et al., Toroidal Symmetry of the Geodesic Acoustic Mode Zonal Flow in a Tokamak Plasma, Phys. Rev. Lett. 96 (2006) 255004