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Artículo
The I-mode confinement regime at ASDEX Upgrade: global propert ies and characterization of strongly intermittent density fluctuations
(IOP Publishing, 2017)
Properties of the Imode confinement regime on the ASDEX Upgrade tokamak are summarized. A weak dependence of the power threshold for the LI transition on the toroidal magnetic field strength is found. During improved ...
Artículo
Prospects of Core–edge Integrated No-ELM and Small-ELM Scenarios for Future Fusion Devices
(Elsevier, 2023)
One of our grand challenges towards fusion energy is the achievement of a high-performance plasma core coupled to a boundary solution. The high confinement mode (H-mode) provides such a high-performance fusion core due to ...
Artículo
Investigation of inter-ELM ion heat transport in the H-mode pedestal of ASDEX Upgrade plasmas
(IOP Publishing, 2017)
The ion heat transport in the pedestal of H-mode plasmas is investigated in various H-mode discharges with different pedestal ion collisionalities. Interpretive modelling suggests that in all analyzed discharges the ...
Artículo
Edge momentum transport by neutrals: an interpretive numerical framework
(IOP Publishing, 2017)
Due to their high cross-field mobility, neutrals can contribute to momentum transport even at the low relative densities found inside the separatrix and they can generate intrinsic rotation. We use a charge-exchange ...
Artículo
MHD Simulations of Formation, Sustainment and Loss of Quiescent H-mode in the All-tungsten ASDEX Upgrade
(Institute of Physics Publishing, 2023)
Periodic edge localized modes (ELMs) are the non-linear consequences of pressure-gradient-driven ballooning modes and current-driven peeling modes becoming unstable in the pedestal region of high confinement fusion plasmas. ...
Artículo
Non-linear MHD investigations of high-confinement regimes without type-I ELMs in ASDEX Upgrade and JT-60SA
(IOP Publishing, 2024-07-18)
Large edge localised modes (ELMs) would cause an unacceptable reduction of material lifetime in future large tokamaks due to the significant amount of energy expelled from the magnetically confined region towards the plasma ...