Romualdo Martín

TL;DR: The TJ-II as discussed by the authors is a helical-axis stellarator with high-beta operation, flexibility, and a bean-shaped plasma cross section, which can be used for electron cyclotron resonance heating, transport, and magnetohydrodynamics.

TL;DR: Experiments have been performed on MAST using both external and internal resonant magnetic perturbation (RMP) coils as mentioned in this paper, showing that either set of coils can produce a region (ΔΨpol > 0.17), for which the Chirikov parameter is greater than 1, wider than that correlated with ELM suppression in DIII-D.

TL;DR: In this paper, localized filamentary structures play an important role in determining the radial efflux in both L mode and during edge localized modes (ELMs) on MAST, and the spatial and temporal evolution of filaments observed in L-mode and ELMs have been compared and contrasted in order to confront the predictions of various models that have been proposed to predict filament propagation and in particular ELM energy losses.

TL;DR: A series of experiments performed in TJ-II stellarator with the aim of studying the influence of magnetic configuration on stability and transport properties of TJII plasmas is described in this paper.

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).