Focusing of white synchrotron radiation using large-acceptance cylindrical refractive lenses made of single – crystal diamond

Polikarpov, Maxim; Snigirev, A.

doi:10.1063/1.4952896

Cited by 4 publications

(1 citation statement)

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“…Lenses therefore are able to occupy all niches at modern X‐ray beamlines. Long‐focal diamond lenses perform transmission and energy filtering of the high‐heat radiation at the front end . After that, 2D beryllium lenses in X‐ray transfocators take the baton being not only focusing but imaging and microscopy devices.…”

Section: Introductionmentioning

confidence: 99%

Spectral X‐Ray Glitches in Monocrystalline Diamond Refractive Lenses

Polikarpov

Emerich

Klimova

et al. 2017

Physica Status Solidi (b)

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X-ray refractive lenses are widely used optical devices at today synchrotron X-ray sources. In the present paper we demonstrate negative influence of the X-ray diffraction on optical properties of monocrystalline X-ray refractive lenses in operation. Several types of single-crystal diamond lenses were studied in X-ray spectroscopy mode at the European Synchrotron Radiation Facility. X-rays were propagating through individual lenses, stacked together in a row, and the transmitted intensity was measured at different energies. While using the stack of crystallographically co-aligned lenses, we obtained the strong maximal reduction of 35% in an intensity of the outgoing signal. The effect was caused by diffraction losses in the single-crystal diamond and also called "X-ray glitch." The magnitude of the effect was then minimized down to $10% by use of stacks with different crystallographic orientation of individual lenses inside. At the same time, X-ray glitches did not affect any focal spot's size or shape while only arousing the darkening of the focal spot at exact energies of X-ray glitches.

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Section: Introductionmentioning

confidence: 99%