Polycapillary half-lenses as X-ray monochromators

摘要

On the basis of Kumakhov's poly-capillary half-lens and one-crystal spectrometer, a high aperture X-ray monochromator was developed featuring high angular and energy resolution. The resolution of△E ≌ 15 eV was obtained for quartz crystals with (50-52) reflection. Application of poly-capillary half-lenses in X-ray diffractometry of perfect and defective crystals and X-ray absorption spectroscopy is discussed.