Complete multi-field characterization of the geodesic acoustic mode in the TCV tokamak
The geodesic acoustic mode (GAM) is a coherently oscillating zonal flow that may regulate turbulence in toroidal plasmas. Uniquely, the complete poloidal and toroidal structure of the magnetic component of the turbulence-driven GAM has been mapped in the TCV tokamak. Radially localized measurements of the fluctuating density, ECE radiative temperature and poloidal flow show that the GAM is a fully coherent, radially propagating wave. These observations are consistent with electrostatic, gyrokinetic simulations.
- URL: http://iopscience.iop.org/0741-3335
- URL: https://crpplocal.epfl.ch/pinboard/jpapers/1402401.pdf
Record created on 2014-06-23, modified on 2016-08-09