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Inner versus outer E×B shear layer: an attempt to radially localize the L-H transition
(European Physical Society (EPS), 2019)
Artículo
Qualification and implementation of line ratio spectroscopy on helium as plasma edge diagnostic at ASDEX Upgrade
(IOP Publishing, 2018)
A new thermal helium beam diagnostic has been implemented as plasma edge diagnostic at the ASDEX Upgrade (AUG) tokamak. The helium beam is built to measure the electron density ne and temperature Te simultaneously with ...
Artículo
Feasibility study for an edge main ion charge exchange recombination spectroscopy system at ASDEX Upgrade
(IOP Publishing, 2019)
A feasibility study for a new edge main ion charge exchange recombination spectroscopy (CXRS) system at the ASDEX Upgrade tokamak has been carried out. This diagnostic uses the new edge fast-ion Dα (FIDA) spectrometers and ...
Artículo
Experimental conditions to suppress edge localised modes by magnetic perturbations in the ASDEX Upgrade tokamak
(IOP Publishing, 2018)
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 the ASDEX Upgrade tokamak. The main empirical ...
Artículo
Velocity-space sensitivity and tomography of scintillator-based fast-ion loss detectors
(IOP Publishing, 2018)
A simple model for the instrument function of scintillator-based fast-ion loss detectors (FILD) has been developed which accounts for the orbit trajectories in the 3D detector geometry and for the scintillator response. ...
Artículo
Understanding helium transport: experimental and theoretical investigations of low-Z impurity transport at ASDEX Upgrade
(IOP Publishing, 2019)
The presence of helium is fundamentally connected to the performance of a fusion reactor, as fusion-produced helium is expected to heat the plasma bulk, while He 'ash' accumulation dilutes the fusion fuel. An understanding ...