Plasma Physics and Controlled Fusion · 2018 · 38 citations · 32 references
Natural SciencesNuclear EngineeringPhysicsFusion EngineeringPlasma PhysicsRadiation TransportElectron TransportHigh-temperature PlasmasPlasma ConfinementPlasma SimulationPlasma TransportTokamak EngineeringEnergy Absorption CoefficientPlasma Source ModelingPlasma Transport SimulationRadiation Transport CoefficientsRadiation Transport PhysicsRelativistic Plasmas
At the ASDEX Upgrade tokamak the electron temperature (T e ) profile is estimated from electron cyclotron emission (ECE) using radiation transport forward modeling within the integrated data analysis scheme. For the interpretation of ECE measurements in high T 5 keV e > plasmas, it was necessary to upgrade the forward model with a fully relativistic absorption coefficient including the relativistic Maxwell-Jttner distribution. This model intrinsically enables the interpretation of ECE measurements affected by the so-called 'pseudo radial displacement' or by harmonic overlap. A numerically efficient implementation allows for the analysis of everyday ECE measurements at ASDEX Upgrade. Various ASDEX Upgrade plasma scenarios are discussed highlighting the benefits of the present radiation transport forward modeling for routine analysis.
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Electron cyclotron emission and absorption in fusion plasmas
M. Bornatici, R. Cano, O. De Barbieri et al. · Nuclear Fusion · 1983 · 631 citations
Integrated Data Analysis of Profile Diagnostics at ASDEX Upgrade
R. Fischer, C. Fuchs, B. Kurzan et al. · Fusion Science & Technology · 2010 · 268 citations
Natural Sciences, Nuclear Engineering, Bayesian Data Analysis +12