Results 41 to 50 of about 416,653 (194)

MHD simulations of small ELMs at low triangularity in ASDEX Upgrade [PDF]

open access: yesPlasma Physics and Controlled Fusion, 2021
The development of small and no-ELM regimes for ITER is a high priority topic due to the risks associated with type-I ELMs. By considering non-linear extended magnetohydrodynamic (MHD) simulations of the ASDEX Upgrade tokamak with the JOREK code, we ...
A. Cathey   +8 more
semanticscholar   +1 more source

Pellet-fueled I-mode plasmas in ASDEX Upgrade

open access: yesNuclear Fusion, 2023
This letter reports on the efforts carried out at the ASDEX Upgrade tokamak to integrate I-mode plasmas with pellet fueling and to increase the I-mode Greenwald fraction $f_{\mathrm{GW}}$ , two important requirements for any DEMO operational scenario ...
D. Silvagni   +12 more
doaj   +1 more source

Induced microwave scattering in the ITER edge transport barrier at ECRH and possibility of its modeling at ASDEX-Upgrade [PDF]

open access: yesEPJ Web of Conferences, 2023
The induced scattering parametric decay instability of O-mode polarized microwaves leading to excitation of lower hybrid or electron plasma waves localized within a tokamak edge transport barrier is investigated.
Gusakov Evgeniy   +2 more
doaj   +1 more source

Characterisation of electron cyclotron wall conditioning plasma in ASDEX Upgrade

open access: yesNuclear Fusion, 2023
Electron cyclotron wall condition (ECWC) discharges are characterised in ASDEX Upgrade with full tungsten plasma facing components and X2 polarised waves launched from the equatorial ports, relevant to ECWC conditions in ITER Pre-Fusion Power Operation ...
T. Wauters   +20 more
semanticscholar   +1 more source

Gaussian Process Tomography at ASDEX Upgrade with Magnetic Equilibrium Information and Nonstationary Kernels

open access: yesFusion science and technology, 2022
This paper explores the application of Gaussian process tomography (GPT) to the bolometer diagnostic at ASDEX Upgrade. Previous work is extended by nonstationary Cartesian kernels and kernels that incorporate magnetic equilibrium information.
K. Moser   +5 more
semanticscholar   +1 more source

Carbon erosion and deposition on the ASDEX Upgrade divertor tiles [PDF]

open access: yes, 2005
Carbon deposition and erosion were measured on ASDEX Upgrade divertor tiles and below the roof baffle during the operation period 2002/2003. The inner divertor is a net carbon deposition area, while a large fraction of the outer divertor is erosion ...
Vainonen-Ahlgren, E.   +9 more
core   +1 more source

High-heat flux ball-pen probe head in ASDEX-Upgrade.

open access: yesReview of Scientific Instruments, 2022
A new high heat flux ball-pen probe head installed on the midplane manipulator is currently being used in ASDEX-Upgrade (AUG). The probe was designed to withstand high heat fluxes making possible the investigation of the plasma edge under harsh ...
G. Grenfell   +11 more
semanticscholar   +1 more source

DIVIMP-B2-EIRENE modelling of 13C migration and deposition in ASDEX-Upgrade L-mode plasmas [PDF]

open access: yes, 2010
Carbon transport and migration were studied experimentally and numerically in a high-density, low-confinement mode plasma in the ASDEX Upgrade tokamak.
Asunta, O.   +10 more
core   +1 more source

The effect of non-axisymmetric wall geometry on 13C transport in ASDEX Upgrade [PDF]

open access: yes, 2012
We present the first results of 3D simulations of global 13C transport in ASDEX Upgrade (AUG) indicating that the deposition profile of 13C exhibits toroidal asymmetry in the main chamber.
Hakola, Antti; id_orcid   +11 more
core   +1 more source

Safety Analysis in Large Volume Vacuum Systems Like Tokamak: Experiments and Numerical Simulation to Analyze Vacuum Ruptures Consequences

open access: yesAdvances in Materials Science and Engineering, Volume 2014, Issue 1, 2014., 2014
The large volume vacuum systems are used in many industrial operations and research laboratories. Accidents in these systems should have a relevant economical and safety impact. A loss of vacuum accident (LOVA) due to a failure of the main vacuum vessel can result in a fast pressurization of the vessel and consequent mobilization dispersion of ...
A. Malizia   +6 more
wiley   +1 more source

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