Reply to the Comment on “Grazing incidence X-ray fluorescence of periodic structures – a comparison between X-ray standing waves and geometrical optics calculations”
Abstract
We respond to the comment by W. Jark and D. Eichert on our earlier article concerning geometrical optics based data interpretation of grazing incidence X-ray fluorescence experiments. The potential of the alternative, diffraction based model proposed in the comment is recognized. However, weak points of this method, especially the one concerning its inapplicability to non-periodic structures, are also presented. We reply to the questions raised by the comment giving a more detailed explanation of the parameterization that was used to depict characteristic spectral features. Finally a simple experimental test that can be run to validate both methods is proposed.