Results 21 to 30 of about 416,653 (194)
Nuclear Fusion, 2023 In future fusion reactors disruptions must be avoided at all costs. Disruptions due to the density limit (DL) are typically described by the power-independent Greenwald scaling.
P. Manz, T. Eich, O. Grover
semanticscholar +1 more source
Sensitivity of Microwave Interferometer in the Limiter Shadow to filaments in ASDEX upgrade
Contributions to Plasma Physics, Volume 62, Issue 5-6, June‐July 2022., 2022 Abstract Microwave Interferometer in the Limiter Shadow (MILS) is a new diagnostic, installed on ASDEX Upgrade for electron density measurements in the far Scrape‐Off Layer (SOL). At the chosen frequency of 47 GHz, the region of measurements varies within several centimetres before and after the limiter, depending on the density.
Mariia Usoltceva +6 more
wiley +1 more source
Compact Radiative Divertor Experiments at ASDEX Upgrade and Their Consequences for a Reactor.
Physical 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
Physik 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
SOLPS-ITER simulations of an X-point radiator in the ASDEX Upgrade tokamak
Nuclear 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
Experiments and non-linear MHD simulations of hot vertical displacement events in ASDEX-Upgrade
Plasma 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
Observation and Modelling of the Onset of Parametric Decay Instabilities during Gyrotron Operation at ASDEX Upgrade [PDF]
EPJ 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
Nuclear 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
Nuclear 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
Nuclear 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