110 citations · 871 across the 34 of their papers we have counts for
34 papers
Available energy of trapped electrons in Miller tokamak equilibria
R. J. J. Mackenbach, J. H. E. Proll, G. Snoep +1
Available energy (Æ), which quantifies the maximum amount of thermal energy that may be liberated and converted into instabilities and turbulence, has shown to be a useful metric f…
Bounce-averaged drifts: Equivalent definitions, numerical implementations, and example cases
R. J. J. Mackenbach, J. M. Duff, M. J. Gerard +3
In this article we provide various analytical and numerical methods for calculating the average drift of magnetically trapped particles across field lines in complex geometries, an…
Drift of ablated material after pellet injection in a tokamak
O. Vallhagen, I. Pusztai, P. Helander +2
Pellet injection is used for fuelling and controlling discharges in tokamaks, and it is foreseen in ITER. During pellet injection, a movement of the ablated material towards the lo…
Energetic bounds on gyrokinetic instabilities. Part III. Generalized free energy
G. G. Plunk, P. Helander
Free energy, widely used as a measure of turbulence intensity in weakly collisional plasmas, has been recently found to be a suitable basis to describe both linear and nonlinear gr…
A single-field-period quasi-isodynamic stellarator
R. Jorge, G. G. Plunk, M. Drevlak +4
A single-field-period quasi-isodynamic stellarator configuration is presented. This configuration, which resembles a twisted strip, is obtained by the method of direct construction…
Energetic bounds on gyrokinetic instabilities. Part II. Modes of optimal growth
G. G. Plunk, Per Helander
We introduce modes of instantaneous optimal growth of free energy for the fully electromagnetic gyrokinetic equations. We demonstrate how these "optimal modes" arise naturally from…