A. W. Morris

TL;DR: In this paper, the authors show that externally applied static resonant magnetic perturbations (RMPs) induce stationary magnetic islands, which give rise to a significant degradation in energy and particle confinement, suppression of the sawtooth oscillation and a large change in the impurity ion toroidal velocity.

TL;DR: In this article, the critical scalings of error field sensitivity and harmonic content effects were identified, enabling predictions to be made of the requirements for larger devices such as ITER Thresholds are lowest at low density, a regime proposed for H mode access on ITER.

TL;DR: In this paper, the authors reviewed the 2014-2016 JET results in the light of their significance for optimising the ITER research plan for the active and non-active operation, stressing the importance of the magnetic configurations and the recent measurements of fine-scale structures in the edge radial electric.

TL;DR: In this article, a combination of state-of-the-art imaging and profile diagnostics, together with established plasma simulation codes, are providing for the first time on Mega Ampere Spherical Tokamak (MAST) the tools required for studying confinement and transport, from the core through to the plasma edge and scrape-off-layer (SOL).

TL;DR: In this article, the authors compared the predictions of two theories that predict a threshold island width for the onset of neoclassical tearing modes with data from a q scan, and the results were in good agreement between theory and experiment.