FIELD: manufacture of optical elements, in particular, lenses for X-ray equipment (X-ray diffractometers, microscopes, telescopes) used within the range of ≥ 6 keV (hard X-radiation). SUBSTANCE: the lens uses a polished single-crystal plate of germanium with a surface shape in the form of the Fresnel's structure. The X-radiation lens of germanium makes it possible to obtain an image with a high resolving power, wide pass-band and large aperture, i.e. a high-quality image. EFFECT: enhanced quality. 1 dwg
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