POLYCAPILLARY OPTICS AND X-RAY ANALYTICAL TECHNIQUES

摘要

This paper is a brief review of recent developments in the use of monolithic polycapillary optics in the analysis of materials. Strongly focused X-ray beams can greatly increase the sensitivity and spatial resolution for micro x-ray fluorescence (MXRF) studies. Recent high-resolution measurements with position sensitive diffraction spectrometer (PSDS) detectors have shown that resolution of a few eV can be achieved, making possible measurements of chemical shifts as well as increased sensitivity for composition determinations. The use of polycapillary collimating optics and weakly focusing optics can also give greatly increased sensitivity and convenience in conventional diffraction analysis and for macromolecular crystal structure studies.