Soft X-ray monochromatisation using a multilayer-single crystal combination

A method of monochromatising soft X-rays by using multilayers in combination with organic crystals is presented. An energy resolution of 0.1% has been achieved at ca. 800 eV. The combination can be used for high resolution studies in the energy range 500-800 eV, which is difficult to cover using either inorganic double crystals or grating monochromator