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

Maxime Lebugle, Marianne Liebi, Klaus Wakonig, Vitaliy A. Guzenko, Mirko Holler, Andreas Menzel, Manuel Guizarsicairos, Ana Diaz, Christian David

Research output: Contribution to journalArticlepeer-review

Abstract

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.

Original languageEnglish
Pages (from-to)21145-21158
Number of pages14
JournalOptics Express
Volume25
Issue number18
DOIs
Publication statusPublished - 2017

Subject classification (UKÄ)

  • Accelerator Physics and Instrumentation

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