Hard X-ray microbeam experiments with a sputtered-sliced Fresnel zone plate and its applications

Hard X-ray microbeam experiments with sputtered-sliced Fresnel zone plates have been performed. Zone plates with an outermost zone width of 0.25 mum (#FZP1) and 0.1 mum (#FZP2) were fabricated and evaluated. In a scanning X-ray microscopy experiment, a line-and-space pattern with structure as fine as 0.1 mm was resolved using #FZP2 at an X-ray wavelength of 1 Angstrom. As an application of the microbeam technique, a two-dimensional distribution of constituent elements in forensic samples has been obtained (e.g. section view of human and elephant hairs) using fluorescent scanning microscopy.