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Nanofocusing with aberration-corrected rotationally parabolic refractive X-ray lenses

DOI: 10.1107/S1600577517015272 DOI Help

Authors: Frank Seiboth (Deutsches Elektronen-Synchrotron – DESY; Linac Coherent Light Source, SLAC National Accelerator Laboratory) , Felix Wittwer (Deutsches Elektronen-Synchrotron – DESY; Universität Hamburg) , Maria Scholz (Deutsches Elektronen-Synchrotron – DESY; Universität Hamburg) , Maik Kahnt (Deutsches Elektronen-Synchrotron – DESY; Universität Hamburg) , Martin Seyrich (Deutsches Elektronen-Synchrotron – DESY; Universität Hamburg) , Andreas Schropp (Deutsches Elektronen-Synchrotron – DESY) , Ulrich Wagner (Diamond Light Source) , Christoph Rau (Diamond Light Source) , Jan Garrevoet (Deutsches Elektronen-Synchrotron – DESY) , Gerald Falkenberg (Deutsches Elektronen-Synchrotron – DESY) , Christian G. Schroer (Deutsches Elektronen-Synchrotron – DESY; Universität Hamburg)
Co-authored by industrial partner: No

Type: Journal Paper
Journal: Journal Of Synchrotron Radiation , VOL 25

State: Published (Approved)
Published: December 2017

Open Access Open Access

Abstract: Wavefront errors of rotationally parabolic refractive X-ray lenses made of beryllium (Be CRLs) have been recovered for various lens sets and X-ray beam configurations. Due to manufacturing via an embossing process, aberrations of individual lenses within the investigated ensemble are very similar. By deriving a mean single-lens deformation for the ensemble, aberrations of any arbitrary lens stack can be predicted from the ensemble with [\bar{\sigma}] = 0.034λ. Using these findings the expected focusing performance of current Be CRLs are modeled for relevant X-ray energies and bandwidths and it is shown that a correction of aberrations can be realised without prior lens characterization but simply based on the derived lens deformation. The performance of aberration-corrected Be CRLs is discussed and the applicability of aberration-correction demonstrated over wide X-ray energy ranges.

Journal Keywords: refractive X-ray optics; aberration correction; ptychography; phase plate

Subject Areas: Technique Development, Physics


Instruments: I13-1-Coherence

Other Facilities: PETRA III at DESY

Added On: 11/12/2017 14:36

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