158 citations · 397 across the 20 of their papers we have counts for
20 papers
A novel objective function minimizes resonant trapped energetic particle losses in stellarators
John Anthony Labbate, Elizabeth J. Paul, Amelia Chambliss
Near-omnigenous stellarators are susceptible to energetic particle (EP) losses due to resonances between trapped EPs and non-omnigenous perturbations to the magnetic field. Existin…
Fast ion transport in quasisymmetric equilibria in the presence of a resonant Alfvénic perturbation
Elizabeth J. Paul, Harry E. Mynick, Amitava Bhattacharjee
Significant progress has been made in designing magnetic fields that provide excellent confinement of the guiding enter trajectories of alpha particles using quasisymmetry (QS). Gi…
Energetic particle loss mechanisms in reactor-scale equilibria close to quasisymmetry
E. J. Paul, A. Bhattacharjee, M. Landreman +3
Collisionless physics primarily determines the transport of fusion-born alpha particles in 3D equilibria. Several transport mechanisms have been implicated in stellarator configura…
Stellarator coil optimization supporting multiple magnetic configurations
Brandon F Lee, Elizabeth J Paul, Georg Stadler +1
We present a technique that can be used to design stellarators with a high degree of experimental flexibility. For our purposes, flexibility is defined by the range of values the r…
Measures of quasisymmetry for stellarators
Eduardo Rodriguez, Elizabeth Paul, Amitava Bhattacharjee
Quasisymmetric stellarators are an attractive class of optimised magnetic confinement configurations. The property of quasisymmetry (QS) is in practice limited to be approximate, a…
Adjoint methods for quasisymmetry of vacuum fields on a surface
Richard Nies, Elizabeth J. Paul, Stuart R. Hudson +1
Adjoint methods can speed up stellarator optimisation by providing gradient information more efficiently compared to finite-difference evaluations. Adjoint methods are herein appli…