Results 21 to 30 of about 311,592 (233)

Design of the shattered pellet injection system for ASDEX Upgrade.

open access: yesReview of Scientific Instruments, 2023
A new shattered pellet injection system was designed and built to perform disruption mitigation experiments on ASDEX Upgrade. The system can inject pellets with diameters of 1, 2, 4, or 8 mm with variable lengths over a range of L/D ratios of ∼0.5-1.5 ...
M. Dibon   +12 more
semanticscholar   +1 more source

30 Jahre ASDEX Upgrade

open access: yesPhysik in unserer Zeit, Volume 52, Issue 3, Page 116-122, May 2021., 2021
Der Tokamak ASDEX Upgrade am Max‐Planck‐Institut für Plasmaphysik in Garching ist seit dreißig Jahren in Betrieb. In dieser Zeit wurde die Fusionsanlage immer weiter ausgebaut und verbessert. Inzwischen hat man zahlreiche gut diagnostizierte Szenarien für den Plasmabetrieb erarbeitet.
Arne Kallenbach
wiley   +1 more source

Compact Radiative Divertor Experiments at ASDEX Upgrade and Their Consequences for a Reactor.

open access: yesPhysical Review Letters, 2023
We present a novel concept to tackle the power exhaust challenge of a magnetically confined fusion plasma. It relies on the prior establishment of an X-point radiator that dissipates a large fraction of the exhaust power before it reaches the divertor ...
T. Lunt   +8 more
semanticscholar   +1 more source

Overview of ASDEX Upgrade results [PDF]

open access: yesNuclear Fusion, 2011
The ASDEX Upgrade programme is directed towards physics input to critical elements of the ITER design and the preparation of ITER operation, as well as addressing physics issues for a future DEMO design. After the finalization of the tungsten coating of the plasma facing components, the re-availability of all flywheel-generators allowed high-power ...
Kallenbach, A.   +193 more
openaire   +7 more sources

Dust investigations at ASDEX Upgrade [PDF]

open access: yesPhysica Scripta, 2009
Investigations on dust in the full tungsten divertor tokamak, ASDEX Upgrade, are summarized. Newly designed collectors are used to distinguish plasma-produced dust from other kinds of debris. Whereas submicron particles are often tungsten spheres, larger ones are agglomerates from tungsten in a boron/carbon matrix.
Rohde, V.   +3 more
openaire   +2 more sources

SOLPS-ITER simulations of an X-point radiator in the ASDEX Upgrade tokamak

open access: yesNuclear Fusion, 2022
The X-point radiator (XPR) is an attractive scenario that may contribute to solving the power exhaust problem in future fusion devices. The 2D transport code SOLPS-ITER was applied to reproduce the experimentally measured plasma condition with an XPR in ...
O. Pan   +8 more
semanticscholar   +1 more source

Observation and Modelling of the Onset of Parametric Decay Instabilities during Gyrotron Operation at ASDEX Upgrade [PDF]

open access: yesEPJ Web of Conferences, 2019
We investigate parametric decay instabilities (PDIs) occurring for gyrotron radiation near the upper hybrid resonance at the ASDEX Upgrade tokamak.
Hansen S.K.   +4 more
doaj   +1 more source

Experiments and non-linear MHD simulations of hot vertical displacement events in ASDEX-Upgrade

open access: yesPlasma Physics and Controlled Fusion, 2023
Hot vertical displacement events (VDEs) are one of the worst case scenarios for high-current tokamaks as they are associated with large heat loads and electro-magnetic forces.
N. Schwarz   +11 more
semanticscholar   +1 more source

Overview of physics studies on ASDEX Upgrade [PDF]

open access: yesNuclear Fusion, 2019
Abstract The ASDEX Upgrade (AUG) programme, jointly run with the EUROfusion MST1 task force, continues to significantly enhance the physics base of ITER and DEMO. Here, the full tungsten wall is a key asset for extrapolating to future devices.
Meyer, H.   +258 more
openaire   +12 more sources

Overview of ASDEX Upgrade results [PDF]

open access: yesNuclear Fusion, 2003
Recent results from the ASDEX Upgrade experimental campaigns 2001 and 2002 are presented. An improved understanding of energy and particle transport emerges in terms of a ‘critical gradient’ model for the temperature gradients. Coupling this to particle diffusion explains most of the observed behaviour of the density profiles, in particular, the ...
Zohm, H.   +167 more
openaire   +7 more sources

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