Hannover 2020 – wissenschaftliches Programm

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P: Fachverband Plasmaphysik

P 5: Poster Session 1

P 5.10: Poster

Montag, 9. März 2020, 16:30–18:30, Empore Lichthof

Integrated Data Analysis 2.0 — •Michael Bergmann, Frank Jenko, Rainer Fischer, and the ASDEX Upgrade Team — Max-Planck-Institute für Plasmaphysik, Boltzmannstr. 2, 85748 Garching

Using a combined analysis of multiple diagnostics as well as Bayesian probability theory the Integrated Data Analysis (IDA, see [Fischer 2010]) is capable of providing density and temperature radial profiles of ASDEX-Upgrade plasmas. These profiles can then be fed into transport codes for the simulation of discharges. Since IDA considers uncertain measurement data from a heterogeneous set of diagnostics but no transport physics, the estimated profiles and their gradients can be in contradiction to the profiles from transport solvers. Using existing transport solvers such as ASTRA and TGLF we have created a loop in which simulated profiles are fed back into IDA as another pseudo-measurement thus providing constraints about the physically reasonable parameter space. This work feeds into a broader effort to make IDA more robust against measurement uncertainties by using multiple transport solvers including machine learning in a multi-fidelity approach.