High-acceptance versatile microfocus module based on elliptical Fresnel zone plates for small-angle X-ray scattering

Sökning: L773:1094 4087 > High-acceptance ver...

Liebi, Marianne (författare): Lund University,Lunds universitet,MAX IV-laboratoriet,MAX IV Laboratory,Paul Scherrer Institute

(creator_code:org_t)

Relaterad länk:: http://dx.doi.org/10... (free); visa fler...; https://lup.lub.lu.s...; https://doi.org/10.1...; visa färre...

Abstract Ämnesord

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High-efficiency microfocusing of multi-keV X-rays at synchrotron sources is highly profitable for spatially resolved structural analysis of many kinds. Because radiation from synchrotron sources is typically elongated along the horizontal dimension, generating a microbeam that is isotropic in size requires a carefully designed optics system. Here we report on using a combination of a horizontally tunable slit downstream of the undulator source with elliptical diffractive Fresnel zone plates. We demonstrate the arrangement in context of small-angle X-ray scattering experiments, obtaining a microbeam of 2.2 μm ×1.8 μm (X × Y) with a flux of 1.2 × 1010 photons/s at an energy of 11.2 keV at the sample position.

Av författaren/redakt...: Lebugle, Maxime; Liebi, Marianne; Wakonig, Klaus; Guzenko, Vitaliy ...; Holler, Mirko; Menzel, Andreas; visa fler...; Guizarsicairos, ...; Diaz, Ana; David, Christian; visa färre...

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