Regensburg 2016 – wissenschaftliches Programm

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O: Fachverband Oberflächenphysik

O 67: Theory: General

O 67.5: Poster

Mittwoch, 9. März 2016, 18:15–20:30, Poster A

Deblurring of Photoelectron Diffraction (XPD) Signals — •Christopher Kohlmann, Tobias Lühr, Christoph Keutner, Dominique Krull, and Carsten Westphal — Experimentelle Physik I, TU Dormtund, Germany, Otto-Hahn-Str. 4, 44221 Dormtund

The photoelectron diffraction (XPD) is a established and appropriate method for the analysis of the structure of surface and interfaces. In order to regain the structural information out of the experimental data, simulations have to be performed. Precise reconstruction of the atomic structure can be determined by comparing the experimental and simulated data. We use a self made automated genetic algorithm to gain a better performance in quantity and quality. In order to reduce the influence of experimental artefacts, we are going to perform deblurring procedures on the experimental patterns. Therefore, the kernel function and the real diffraction effects of the sample need to be deconvoluted. Hence, the kernel function as well as a suitable data sampling method have to be found. This deconvolution method can also be applied on other experimental methods, like STM and PEEM.