4 papers
Radial transport of electric current by electromagnetic microturbulence in tokamaks
Haomin Sun, Toby Adkins, Justin Ball +1
The turbulent transport of toroidal angular momentum helps determine the rotation profiles of tokamak plasmas, and thereby their confinement and stability. The electron contributio…
A Transport Theory of Turbulent Coronal Heating in General Geometry
Jonathan Squire, Benjamin D. G. Chandran, Toby Adkins +3
Magnetic geometry shapes how turbulence transports and dissipates energy in strongly magnetized plasmas. The solar corona, a maze of open and closed flux tubes with sharp transvers…
Turbulent heating in collisionless low-beta plasmas: imbalance, Landau damping, and electron-ion energy partition
T. Adkins, R. Meyrand, J. Squire
An understanding of how turbulent energy is partitioned between ions and electrons in weakly collisional plasmas is crucial for modelling many astrophysical systems. Using theory a…
The gyrokinetic field invariant and electromagnetic temperature-gradient instabilities in `good-curvature' plasmas
P. G. Ivanov, P. Luhadiya, T. Adkins +1
Curvature-driven instabilities are ubiquitous in magnetised fusion plasmas. By analysing the conservation laws of the gyrokinetic system of equations, we demonstrate that the well-…