F. Mink
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View article: High frequency edge coherent modes studied with the ultra-fast swept reflectometer on ASDEX Upgrade
High frequency edge coherent modes studied with the ultra-fast swept reflectometer on ASDEX Upgrade Open
International audience
View article: Impact of <i>n</i> = 1 field on the non-axisymmetric magnetic perturbations associated with the edge localized mode crashes in the ASDEX Upgrade tokamak
Impact of <i>n</i> = 1 field on the non-axisymmetric magnetic perturbations associated with the edge localized mode crashes in the ASDEX Upgrade tokamak Open
In the ASDEX Upgrade tokamak, the growth of non-axisymmetric magnetic perturbation (NAMP) associated with the ELM crash events has been observed, and both the poloidal and toroidal phases of NAMPs, measured by a set of Mirnov coils, were h…
View article: Non-linear modeling of the threshold between ELM mitigation and ELM suppression by Resonant Magnetic Perturbations in ASDEX Upgrade
Non-linear modeling of the threshold between ELM mitigation and ELM suppression by Resonant Magnetic Perturbations in ASDEX Upgrade Open
The interaction between Edge Localized Modes (ELMs) and Resonant Magnetic Perturbations (RMPs) is modeled with the magnetohydrodynamic code JOREK using experimental parameters from ASDEX Upgrade discharges. The ELM mitigation or suppressio…
View article: ELM-induced cold pulse propagation in ASDEX Upgrade
ELM-induced cold pulse propagation in ASDEX Upgrade Open
In ASDEX Upgrade, the propagation of cold pulses induced by type-I edge localized modes (ELMs) is studied using electron cyclotron emission measurements, in a dataset of plasmas with moderate triangularity. It is found that the edge safety…
View article: Dynamics of ideal modes and subsequent ELM crashes in 3D tokamak geometry from external magnetic perturbations
Dynamics of ideal modes and subsequent ELM crashes in 3D tokamak geometry from external magnetic perturbations Open
The impact of three-dimensional (3D) tokamak geometry from external magnetic perturbations on edge instabilities has been examined in high confinement mode plasmas with edge localised modes (ELMs) in ASDEX Upgrade. The 3D geometry has been…
View article: Insights into type‐I edge localized modes and edge localized mode control from JOREK non‐linear magneto‐hydrodynamic simulations
Insights into type‐I edge localized modes and edge localized mode control from JOREK non‐linear magneto‐hydrodynamic simulations Open
Edge localized modes (ELMs) are repetitive instabilities driven by the large pressure gradients and current densities in the edge of H‐mode plasmas. Type‐I ELMs lead to a fast collapse of the H‐mode pedestal within several hundred microsec…
View article: Effects of density gradients and fluctuations at the plasma edge on ECEI measurements at ASDEX Upgrade
Effects of density gradients and fluctuations at the plasma edge on ECEI measurements at ASDEX Upgrade Open
Electron cyclotron emission imaging (ECEI) provides measurements of electron temperature (Te) and its fluctuations (δTe). However, when measuring at the plasma edge, in the steep gradient region, radiation transport effects must be taken i…
View article: Divertor, scrape-off layer and pedestal particle dynamics in the ELM cycle on ASDEX Upgrade
Divertor, scrape-off layer and pedestal particle dynamics in the ELM cycle on ASDEX Upgrade Open
In addition to the relaxation of the pedestal, edge localised modes (ELMs) introduce changes to\n\t\t\tthe divertor and scrape-off layer (SOL) conditions. Their impact on the inter-ELM pedestal\n\t\t\trecovery is investigated, with emphasi…
View article: Field-Line Localized Destabilization of Ballooning Modes in Three-Dimensional Tokamaks
Field-Line Localized Destabilization of Ballooning Modes in Three-Dimensional Tokamaks Open
Field-line localized ballooning modes have been observed at the edge of high confinement mode plasmas in ASDEX Upgrade with rotating 3D perturbations induced by an externally applied n=2 error field and during a moderate level of edge loca…
View article: Pedestal and<i>E</i><sub>r</sub>profile evolution during an edge localized mode cycle at ASDEX Upgrade
Pedestal and<i>E</i><sub>r</sub>profile evolution during an edge localized mode cycle at ASDEX Upgrade Open
The upgrade of the edge charge exchange recombination spectroscopy diagnostic at ASDEX\n\t\t\t\t Upgrade has enabled highly spatially resolved me\n\t\t\t\t asurements of the impurity ion dynamics during an\n\t\t\t\t edge-localized mode cyc…
View article: Pedestal structure and inter-ELM evolution for different main ion species in ASDEX Upgrade
Pedestal structure and inter-ELM evolution for different main ion species in ASDEX Upgrade Open
In tokamak plasmas with different main ion species, a change in confinement occurs, known as the isotope effect. Experiments comparing hydrogen (H), deuterium (D), and helium (4He) plasmas have been performed to identify processes that def…
View article: Inter-ELM Fluctuations and Flows and their evolution when approaching the density limit in the ASDEX Upgrade tokamak
Inter-ELM Fluctuations and Flows and their evolution when approaching the density limit in the ASDEX Upgrade tokamak Open
International audience
View article: Effects of strong density fluctuations at the plasma edge on ECEI measurements at ASDEX Upgrade
Effects of strong density fluctuations at the plasma edge on ECEI measurements at ASDEX Upgrade Open
Not available.
View article: Modeling edge MHD instabilities and their interaction with magnetic perturbations in ASDEX Upgrade
Modeling edge MHD instabilities and their interaction with magnetic perturbations in ASDEX Upgrade Open
Not available.
View article: High frequency magnetic fluctuations correlated with the inter-ELM pedestal evolution in ASDEX Upgrade
High frequency magnetic fluctuations correlated with the inter-ELM pedestal evolution in ASDEX Upgrade Open
In order to understand the mechanisms that determine the structure of the high confinement mode (H-mode) pedestal, the evolution of the plasma edge electron density and temperature profiles between edge localised modes (ELMs) is investigat…
View article: Poloidal asymmetric flow and current relaxation of ballooned transport during I-phase in ASDEX Upgrade
Poloidal asymmetric flow and current relaxation of ballooned transport during I-phase in ASDEX Upgrade Open
Turbulence driven poloidal asymmetric parallel flow and current perturbations are studied for tokamak plasmas of circular geometry. Whereas zonal flows can lead to in-out asymmetry of parallel flows and currents via the Pfirsch–Schlüter me…