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P: Plasmaphysik

P 33: Diagnostik 4

P 33.4: Talk

Thursday, March 30, 2006, 12:00–12:15, 1002

Enhancement of spatial resolution for turbulence studies — •Iulian Teliban¹, Dietmar Block¹, Volker Naulin², and Alexander Piel¹ — ¹Institut für Experimentelle und Angewandte Physik, Universität Kiel, Olshausenstr. 40-60, 24340 Kiel, Germany — ²RisøNational Laboratory, Denmark

Computer simulations have shown that plasma turbulence studies require high spatio-temporal resolution in order to resolve the involved processes. Experimentally, the spatial resolution of plasma diagnostics is severely limited by technical reasons and not satisfying. To overcome this limitation super-resolution algorithms can be used to transfer temporal information into an enhanced spatial resolution. To benchmark the algorithm and test its ability to handle the complex structure dynamics in turbulence it is applied to simulation data from a Hasegawa-Wakatani drift wave model, which are artificially downsampled. By comparing with original data the spatial resolution enhancement of super-resolution is proved and quantified by k-spectra.