XAFS data acquisition with 2D-detectors: Transmission mode XAFS and grazing incidence EXAFS spectroscopy

16th International Conference on X-ray Absorption Fine Structure

Lützenkirchen-Hecht, D.^1 ; Gasse, J.-C.^1 ; Bögel, R.^1 ; Wagner, R.^1 ; Frahm, R.^1

Bergische Universität Wuppertal, Gaußstr. 20, Wuppertal

42097, Germany^1

关键词: Buried interface;    Diffuse scattering;    Grazing incidence;    Reflection modes;    Regions of interest;    Scattering pattern;    Surfaces and interfaces;    Transmission mode;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/712/1/012147/pdf
DOI  :  10.1088/1742-6596/712/1/012147

来源: IOP

【 摘 要 】

XAFS-experiments in transmission and reflection modes have been performed using a Pilatus 100K pixel detector. Transmission mode XAFS spectra from a Co metal foil and Co3O4were recorded to evaluate the data quality offered by this 2D-detector. Furthermore, the pixel detector was also used to measure reflection mode grazing incidence EXAFS data. Using different regions of interest in the collected scattering patterns, we will show that the diffuse scattering can be separated for the different contributing surfaces and interfaces, allowing simultaneous investigations of surfaces and buried interfaces within multi-layered samples.