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Artículo
Connecting the global H-mode power threshold to the local radial electric field at ASDEX Upgrade
(IOP Publishing, 2020)
The relation between the macroscopic input power required at ASDEX Upgrade to access the H-mode Pthr and the microscopic E x B shear has been investigated via fast charge-exchange recombination spectroscopy (CXRS) measurements ...
Artículo
Evaluation of impurity densities from charge exchange recombination spectroscopy measurements at ASDEX Upgrade
(Institute of Physics Publishing, 2018-07-26)
At ASDEX upgrade (AUG) a new framework for the evaluation of impurity densities based on measurements from charge exchange recombination spectroscopy (CXRS) diagnostics has been developed. The charge exchange impurity ...
Artículo
A forward model for the helium plume effect and the interpretation of helium charge exchange measurements at ASDEX Upgrade
(IOP Science, 2018-03-23)
The analysis of the charge exchange measurements of helium is hindered by an additional emission contributing to the spectra, the helium ‘plume’ emission (Fonck et al 1984 Phys. Rev. A 29 3288), which complicates the ...
Artículo
In-out charge exchange measurements and 3D modelling of diagnostic thermal neutrals to study edge poloidal impurity asymmetries
(IOP Publishing Ltd, 2022)
A new method was developed to model the neutral population produced by the gas puff based charge exchange recombination spectroscopy systems at ASDEX Upgrade (AUG). With this method, the edge impurity density on the high ...
Ponencia
The effect of helium on plasma performance at ASDEX Upgrade and JET
(European Physical Society (EPS), 2017)
Ponencia
Poloidal impurity asymmetry studies using the upgraded high field side edge CXRS diagnostic at ASDEX Upgrade
(European Physical Society (EPS), 2019)
Ponencia
The role of radial electric field and neoclassical transport in the establishment and sustainment of the edge transport barrier in the ASDEX Upgrade tokamak
(European Physical Society (EPS), 2017)
Ponencia
Inner versus outer E×B shear layer: an attempt to radially localize the L-H transition
(European Physical Society (EPS), 2019)
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 ...