Modelling low frequeny waves in Tokamak plasmas
16:15 - 17:15 Tuesday 16 November 2010 TUG
In recent studies of the interaction of low frequency resonant magnetic field perturbations it was demonstrated that Magnetohydrodynamic theory (MHD) has strong limitations in its applicability for modern Tokamak parameter range.
MHD instabilities resulting from perturbed MHD plasma equilibria were modelled in cylindrical geometry for different plasma profiles which are typical for Tokamaks.
These results were used as a benchmark for the linear kinetic model of low frequency plasma oscillations.
A first comparison of results from MHD and kinetic approach for plasma instabilities which are connected with resonant magnetic flux surfaces (kink modes, resistive wall modes) was performed.