258 citations · 1.6k across the 62 of their papers we have counts for
6 papers · 2 filters
Assessing global ion thermal confinement in critical-gradient-optimized stellarators
A. Bañón Navarro, G. T. Roberg-Clark, G. G. Plunk +4
We investigate the confinement properties of two recently devised quasi-helically symmetric stellarator configurations, HSK and QSTK. Both have been optimized for large critical gr…
The residual flow in well-optimized stellarators
G. G. Plunk, P. Helander
The gyrokinetic theory of the residual flow, in the electrostatic limit, is revisited, with optimized stellarators in mind. We consider general initial conditions for the problem,…
Helicity of the magnetic axes of quasi-isodynamic stellarators
Katia Camacho Mata, Gabriel G. Plunk
In this study, we explore the influence of the helicity of the magnetic axis-defined as the self-linking number of the curve-on the quality of quasi-isodynamic stellarator-symmetri…
Higher order theory of quasi-isodynamicity near the magnetic axis of stellarators
Eduardo Rodriguez, Gabe G. Plunk
The condition of quasi-isodynamicity is derived to second order in the distance from the magnetic axis. We do so using a formulation of omnigenity that explicitly requires the bala…
Critical gradient turbulence optimization toward a compact stellarator reactor concept
G. T. Roberg-Clark, G. G. Plunk, P. Xanthopoulos +3
Integrating turbulence into stellarator optimization is shown by targeting the onset for the ion-temperature-gradient mode, highlighting effects of parallel connection length, loca…
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…