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Artículo
The I-mode confinement regime at ASDEX Upgrade: global propert ies and characterization of strongly intermittent density fluctuations
(IOP Publishing, 2017)
Properties of the Imode confinement regime on the ASDEX Upgrade tokamak are summarized. A weak dependence of the power threshold for the LI transition on the toroidal magnetic field strength is found. During improved ...
Artículo
Divertor, scrape-off layer and pedestal particle dynamics in the ELM cycle on ASDEX Upgrade
(IOP Publishing, 2018)
In addition to the relaxation of the pedestal, edge localised modes (ELMs) introduce changes to the divertor and scrape-off layer (SOL) conditions. Their impact on the inter-ELM pedestal recovery is investigated, with ...
Artículo
I-mode studies at ASDEX Upgrade: L-I and I-H transitions, pedestal and confinement properties
(IOP Publishing, 2017)
The I-mode is a plasma regime obtained when the usual L-H power threshold is high, e.g. with unfavourable ion B ∇ direction. It is characterised by the development of a temperature pedestal while the density remains ...
Artículo
Approaching Detachment in I-mode - Response of Core Confinement and the Edge Pedestal in the ASDEX Upgrade Tokamak
(Institute of Physics Publishing, 2021)
Experiments on nitrogen assisted divertor detachment in the improved energy confinement mode (I-mode) are reported from the ASDEX Upgrade tokamak. When nitrogen is introduced into the divertor and radiation losses cool the ...
Artículo
An assessment of nitrogen concentrations from spectroscopic measurements in the JET and ASDEX upgrade divertor
(Elsevier, 2019-01)
The impurity concentration in the tokamak divertor plasma is a necessary input for predictive scaling of divertor detachment, however direct measurements from existing tokamaks in different divertor plasma conditions are ...