Abstract
An experimental-analytical technique for X-ray phase retrieval in the case of high- or low-flux radiation source is considered. Experimentally measurable reflectivity magnitudes, using a rotating anode or conventional X-ray tube source, affect the directly reconstructed profile of the complex crystal structure factor. Thermal and point defect diffuse scattering contaminates the tails of the Bragg diffracted intensity. A numerical procedure developed for the regularization of the directly reconstructed complex structure factor allows one to eliminate parasitic fringes in the resulting crystal-lattice strain profiles. The stability of the phase-reconstruction technique to experimental intensity measured in a different range of reflectivity values is discussed.
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