Abstract

A Monte Carlo ray-tracing program was developed to analyze the geometrical defects and alignment errors on the shape of the x-ray beam image and focusing efficiency of a conical sagittal-focusing monochromator. The geometrical defects and alignment errors were represented with measurable and controllable parameters so that their effects can be analyzed quantitatively. The programmed analysis can be used as a guide to find the precision needed for an optimal sagittal-focusing optical system in terms of flux and focus for large horizontal divergences.

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