Controlling the boundary layer in fusion-grade, high-performance, plasma discharges is
essential for the successful development of toroidal magnetic confinement power generating …

Edge-localized-modes (ELMs) are a ubiquitous feature of H-mode in tokamaks. When
gradients in the H-mode transport barrier grow to exceed the MHD stability limit the ELM …

The installation of a new poloidal charge exchange recombination spectroscopy (CXRS)
diagnostic at ASDEX Upgrade (AUG) has enabled the determination of the radial electric …

Access conditions for full suppression of edge localised modes (ELMs) by magnetic
perturbations (MP) in low density high confinement mode (H-mode) plasmas are studied in …

Operation with all tungsten plasma facing components has become routine in ASDEX
Upgrade. The conditioning of the device is strongly simplified and short glow discharges are …

The I-mode is a plasma regime obtained when the usual LH power threshold is high, eg with
unfavourable ion $\nabla B $ direction. It is characterised by the development of a …

The interaction of externally applied small non-axisymmetric magnetic perturbations (MP)
with tokamak high-confinement mode (H-mode) plasmas is reviewed and illustrated by …

The plasma response to resonant magnetic perturbations (RMPs) in ASDEX Upgrade is
modeled with the non-linear resistive MHD code JOREK, using input profiles that match …

The plasma response from an external n= 2 magnetic perturbation field in ASDEX Upgrade
has been measured using mainly electron cyclotron emission (ECE) diagnostics and a rigid …

Recent experiments at ASDEX Upgrade demonstrate the compatibility of ELM mitigation by
magnetic perturbations with efficient particle fuelling by inboard pellet injection. ELM …