A5076513758- Magnetic confinement fusion research
- Ionosphere and magnetosphere dynamics
- Fusion materials and technologies
- Laser-Plasma Interactions and Diagnostics
- Solar and Space Plasma Dynamics
- High-pressure geophysics and materials
- Particle accelerators and beam dynamics
- GNSS positioning and interference
- Nuclear reactor physics and engineering
- Superconducting Materials and Applications
- Physics of Superconductivity and Magnetism
Technical University of Munich
2022-2025
Max Planck Institute for Plasma Physics
2020-2025
Czech Academy of Sciences, Institute of Plasma Physics
2023
Max Planck Society
2020-2021
Abstract The paper presents experimental and modelling results of a comparison negative (NT) positive (PT) triangularity ASDEX Upgrade (AUG) discharges using the plasma shapes presently foreseen in DTT tokamak, under construction Italy. This work is part broader effort investigation to understand whether good properties observed NT scenarios DIII-D TCV may be extrapolated device more generally DEMO future operations. have shown practical gain running these AUG plasmas with only ECRH mixed...
Abstract The prediction of plasma rotation is high interest for fusion research due to the effects upon magnetohydrodynamic (MHD) instabilities, impurities, and turbulent transport in general. In this work, an analysis method was studied validated reliably extract momentum coefficients from neutral beam injection (NBI) modulation experiments. To end, a set discharges created with similar background profiles ion electron temperatures, heat fluxes, density, that, therefore, should exhibit...
This study employs the established momentum transport analysis at ASDEX Upgrade [Zimmermann et al., Nucl. Fusion 63, 124003 (2023)] to investigate parametric variations of coefficients in core H-mode plasmas. These experimental results are compared a comprehensive database gyrokinetic calculations. Generally, good agreement between predicted and measured diffusive convective is found. The Prandtl numbers correlate most dominantly with magnetically trapped particle fraction. experimentally...
Abstract Experiments, gyrokinetic simulations and transport predictions were performed to investigate if a negative triangularity (NT) L-mode option for the Divertor Tokamak Test (DTT) full-power scenario would perform similarly positive (PT) H-mode reference scenario, avoiding harmful edge localized modes (ELMs). The show that beneficial effect of NT coming from edge/scrape-off layer (SOL) region <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" overflow="scroll"> <mml:mrow>...
Abstract Advanced momentum transport analysis is used to study matched hydrogen (H) and deuterium (D) plasmas in the core of ASDEX Upgrade. The aim validate gyrokinetic theory assess a possible isotope dependence. methodology extracts diffusion, convection, intrinsic torque as function time from experiments employing neutral beam injection (NBI) modulation. H D plasma scenarios with comparable ion heat fluxes, NBI torque, electron densities, several dimensionless parameters were designed...
Abstract A new approach to infer the momentum transport in tokamak core plasmas via perturbation experiments is presented. For first time, analysis self-consistently includes all components and their time dependencies, which are essential separate fluxes closely match experiment. The quantitative agreement between experimentally inferred coefficients gyrokinetic predictions provides an unprecedented validation. This work shows that methodology can now be utilized on route physics-based...