Results 31 to 40 of about 311,592 (233)

Physics of the electric field in the scrape-off layer in ASDEX Upgrade L-mode discharges and comparison to experiments

open access: yesNuclear Materials and Energy, 2022
The electric field in the Scrape-Off Layer (SOL) of fusion plasmas is a key quantity affecting the local plasma transport and possibly also the overall plasma confinement. However, the physics determining the SOL electric field is experimentally not well
D. Brida   +8 more
doaj   +1 more source

Edge turbulence measurements in L-mode and I-mode at ASDEX Upgrade

open access: yesPhysics of Plasmas, 2022
The I-mode confinement regime is promising for future reactor operation due to high energy confinement without high particle confinement. However, the role of edge turbulence in creating I-mode's beneficial transport properties is still unknown.
R. Bielajew   +15 more
semanticscholar   +1 more source

Experiments and modelling on ASDEX Upgrade and WEST in support of tool development for tokamak reactor armour melting assessments

open access: yesNuclear Materials and Energy, 2022
The risk of metallic armour melting constitutes a major concern for ITER and DEMO. Combined computational and experimental effort has led to a successful understanding of melt dynamics in present-day tokamaks, but there remain unexplored melting regimes ...
S. Ratynskaia   +9 more
doaj   +1 more source

Experimental investigation of L- and H-mode detachment via the divertor Thomson scattering at ASDEX Upgrade

open access: yesNuclear Fusion, 2022
The capabilities of the newly installed divertor Thomson Scattering (DTS) diagnostic (Kurzan et al 2021 J. Inst. 16 C09012) at ASDEX Upgrade (AUG) have been demonstrated by measuring 2D electron densities n e and temperatures T e from attached to fully ...
M. Cavedon   +14 more
semanticscholar   +1 more source

Fusion Materials Development at Forschungszentrum Jülich

open access: yesAdvanced Engineering Materials, Volume 22, Issue 6, June 2020., 2020
In fusion material research, the focus has been twofold‐plasma facing and structural materials allowing to withstand the extreme conditions such as neutron bombardment and high heat fluxes. In this contribution, the background for the choice of tungsten as first wall material is given and the advanced materials developed at Forschungszentrum Jülich ...
Jan Willem Coenen
wiley   +1 more source

Turbulence characterization during the suppression of edge-localized modes by magnetic perturbations on ASDEX Upgrade

open access: yesNuclear Fusion, 2023
We study localized edge turbulence in the ASDEX Upgrade tokamak that appears if resonant magnetic perturbations (RMP) are applied to suppress edge localized modes (ELMs) in the high confinement mode.
N. Leuthold   +19 more
semanticscholar   +1 more source

Impact of drifts in the ASDEX upgrade upper open divertor using SOLPS‐ITER

open access: yesContributions to Plasma Physics, Volume 60, Issue 5-6, June-July 2020., 2020
Abstract SOLPS‐ITER L‐mode‐like simulations with the full set of currents and drift velocities activated, and fluid neutrals have been carried out to interpret experimental results obtained in AUG. Drifts are critical to quantitatively reproduce the experimental results; however, simulations without drifts can also reproduce some trends qualitatively ...
I. Paradela Pérez   +9 more
wiley   +1 more source

The ASDEX Upgrade discharge schedule [PDF]

open access: yesFusion Engineering and Design, 2007
Abstract ASDEX Upgrade's recently commissioned discharge control system (DCS) marks the transition from a traditional programmed system to a highly flexible “data driven” one. The allocation of application processes (APs) to controllers, the interconnection of APs through uniquely named signals, and AP control parameter values are all defined as data,
Neu, G.   +5 more
openaire   +2 more sources

Effect of magnetic perturbation fields on power decay length in EMC3-EIRENE simulations and comparison to experiment in ASDEX upgrade

open access: yesNuclear Materials and Energy, 2019
Previous simulation results for the tokamak ASDEX Upgrade have shown that Magnetic Perturbation (MP) fields could lead to a decrease of the peak heat flux onto the divertor targets. However, experimentally, such a decrease has not been observed.
D. Brida   +7 more
doaj   +1 more source

Full-f electromagnetic gyrokinetic turbulence simulations of the edge and scrape-off layer of ASDEX Upgrade with GENE-X

open access: yesPhysics of Plasmas, 2022
Understanding and predicting turbulence in the edge and scrape-off layer (SOL) is critical for the optimization of magnetic confinement fusion devices.
D. Michels   +8 more
semanticscholar   +1 more source

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