Investigation of probe surfaces after ion cyclotron wall conditioning in ASDEX upgrade
Nuclear Materials and Energy, 2017 For the first time, material analysis techniques have been applied to study the effect of ion cyclotron wall conditioning (ICWC) on probe surfaces in a metal-wall machine.
A. Garcia-Carrasco +12 more
doaj +1 more source
Arc behaviour on different materials in ASDEX Upgrade
Nuclear Materials and Energy, 2021 Arcs, a source of dust particles and a localized erosion mechanism of the plasma-facing components, are found in all major fusion plasma devices. Measurements of arcs require diagnostics with high temporal and local resolution, which are not available at
V. Rohde, M. Balden, R. Neu
doaj +1 more source
Experiments and modelling of negative triangularity ASDEX Upgrade plasmas in view of DTT scenarios
Plasma Physics and Controlled FusionThe paper presents experimental and modelling results of a comparison of negative (NT) and positive (PT) triangularity ASDEX Upgrade (AUG) discharges using the plasma shapes presently foreseen in the DTT tokamak, under construction in Italy. This work is
L. Aucone +21 more
semanticscholar +1 more source
X-point radiation, its control and an ELM suppressed radiating regime at the ASDEX Upgrade tokamak
Nuclear Fusion, 2020 Future fusion reactors require a safe, steady state divertor operation. The required detached operation is, in tokamaks with metal walls, usually achieved by seeding of impurities, such as nitrogen.
M. Bernert +18 more
semanticscholar +1 more source
Tungsten redistribution patterns in ASDEX Upgrade
, 2004 In ASDEX Upgrade tungsten is used as a high-Z plasma facing material. Its erosion, migration and subsequent deposition have been studied by analysis of a set of customised marker tiles, which was installed in the divertor and at the central column for ...
Pugno, R. +9 more
core +1 more source
Tungsten erosion and redeposition in the all-tungsten divertor of ASDEX Upgrade [PDF]
, 2009 Net erosion and deposition of tungsten (W) in the ASDEX Upgrade divertor were determined after the 2007 campaign by using thin W marker stripes. ASDEX Upgrade had full-W plasma-facing components during this campaign.
Hakola, Antti; id_orcid +23 more
core +1 more source
The quasi-continuous exhaust regime in ASDEX Upgrade and JET
Nuclear Materials and EnergyThe quasi-continuous exhaust (QCE) regime is a type-I ELM-free high confinement regime obtained at high plasma shaping and high separatrix density. A comparison with various ELM-free regimes in the literature is presented together with potential physics ...
M. Faitsch +20 more
doaj +1 more source
Overview of the isotope effects in the ASDEX Upgrade tokamak
Plasma Physics and Controlled Fusion, 2021 In recent years, measurements on the ASDEX Upgrade tokamak and modelling performed for plasmas with hydrogen (H) and deuterium (D) as the main gas have improved our understanding of the ion mass dependencies in fusion plasmas.
P. Schneider +5 more
semanticscholar +1 more source
SOLPS-ITER modification for impurity transport modelling in the tokamak pedestal region
Nuclear Materials and EnergyKinetic corrections to SOLPS-ITER fluid equations are made to extend their applicability for description of the neoclassical part of impurity transport to collisionless regimes of the main ions.
V. Korzueva +3 more
doaj +1 more source
Non-linear extended MHD simulations of type-I edge localised mode cycles in ASDEX Upgrade and their underlying triggering mechanism [PDF]
Nuclear Fusion, 2020 A triggering mechanism responsible for the explosive onset of edge localised modes (ELMs) in fusion plasmas is identified by performing, for the first time, non-linear magnetohydrodynamic simulations of repetitive type-I ELMs.
A. Cathey +8 more
semanticscholar +1 more source