activity
20162026
most citedGlobal effects on neoclassical transport in the pedestal with impurities

8 citations · 15 across the 3 of their papers we have counts for

collaborators

6 papers

physics.plasm-ph2026

Asymptotic scaling theory of electrostatic turbulent transport in magnetised fusion plasmas

T. Adkins, I. G. Abel, M. Barnes +8

Turbulent transport remains one of the principal obstacles to achieving efficient magnetic confinement in fusion devices. Two of the dominant drivers of the turbulence are microsca…

physics.plasm-ph2024

A family of quasi-axisymmetric stellarators with varied rotational transform

Stefan Buller, Matt Landreman, John Kappel +1

We apply a continuation method to recently optimized stellarator equilibria with excellent quasi-axisymmetry (QA) to generate new equilibria with a wide range of rotational transfo…

physics.plasm-ph2023

Coil Optimization for Quasi-helically Symmetric Stellarator Configurations

Alexander Vyacheslav Wiedman, Stefan Buller, Matt Landreman

Filament-based coil optimizations are performed for several quasihelical stellarator configurations, notably the one from [M. Landreman, E. Paul, PRL 128, 035001, 2022], demonstrat…

physics.plasm-ph2023

Optimization of Nonlinear Turbulence in Stellarators

Patrick Kim, Stefan Buller, Rory Conlin +8

We present new stellarator equilibria that have been optimized for reduced turbulent transport using nonlinear gyrokinetic simulations within the optimization loop. The optimizatio…

physics.plasm-ph2019★ 7 cited

The importance of the classical channel in the impurity transport of optimized stellarators

S. Buller, A. Mollén, S. L. Newton +2

In toroidal magnetic confinement devices, such as tokamaks and stellarators, neoclassical transport is usually an order of magnitude larger than its classical counterpart. However,…

physics.plasm-ph2016★ 8 cited

Global effects on neoclassical transport in the pedestal with impurities

I. Pusztai, S. Buller, M. Landreman

We present a numerical study of collisional transport in a tokamak pedestal in the presence of non-trace impurities, using the radially global neoclassical solver PERFECT [M.…