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Single-exposure X-ray phase imaging microscopy with a grating interferometer

DOI: 10.1107/S160057752200193X DOI Help

Authors: Andreas Wolf (Friedrich-Alexander-Universität Erlangen-Nürnberg) , Bernhard Akstaller (riedrich-Alexander-Universität Erlangen-Nürnberg) , Silvia Cipiccia (Diamond Light Source; University College London) , Silja Flenner (Helmholtz-Zentrum Hereon) , Johannes Hagemann (Deutsches Elektronen-Synchrotron DESY) , Veronika Ludwig (Friedrich-Alexander-Universität Erlangen-Nürnberg) , Pascal Meyer (Karlsruhe Institute of Technology) , Andreas Schropp (Deutsches Elektronen-Synchrotron DESY) , Max Schuster (Friedrich-Alexander-Universität Erlangen-Nürnberg) , Maria Seifert (Friedrich-Alexander-Universität Erlangen-Nürnberg) , Mareike Weule (Friedrich-Alexander-Universität Erlangen-Nürnberg) , Thilo Michel (Friedrich-Alexander-Universität Erlangen-Nürnberg) , Gisela Anton (Friedrich-Alexander-Universität Erlangen-Nürnberg) , Stefan Funk (Friedrich-Alexander-Universität Erlangen-Nürnberg)
Co-authored by industrial partner: No

Type: Journal Paper
Journal: Journal Of Synchrotron Radiation , VOL 29

State: Published (Approved)
Published: May 2022
Diamond Proposal Number(s): 18540

Open Access Open Access

Abstract: The advent of hard X-ray free-electron lasers enables nanoscopic X-ray imaging with sub-picosecond temporal resolution. X-ray grating interferometry offers a phase-sensitive full-field imaging technique where the phase retrieval can be carried out from a single exposure alone. Thus, the method is attractive for imaging applications at X-ray free-electron lasers where intrinsic pulse-to-pulse fluctuations pose a major challenge. In this work, the single-exposure phase imaging capabilities of grating interferometry are characterized by an implementation at the I13-1 beamline of Diamond Light Source (Oxfordshire, UK). For comparison purposes, propagation-based phase contrast imaging was also performed at the same instrument. The characterization is carried out in terms of the quantitativeness and the contrast-to-noise ratio of the phase reconstructions as well as via the achievable spatial resolution. By using a statistical image reconstruction scheme, previous limitations of grating interferometry regarding the spatial resolution can be mitigated as well as the experimental applicability of the technique.

Journal Keywords: phase contrast X-ray imaging; X-ray microscopy; grating interferometry; phase retrieval

Subject Areas: Technique Development, Physics


Instruments: I13-1-Coherence

Added On: 17/03/2022 09:20

Documents:
Journal of Synchrotron Radiation - 2022 - Wolf - Single%E2%80%90exposure X%E2%80%90ray phase imaging microscopy with a grating.pdf

Discipline Tags:

Physics Technique Development - Physics

Technical Tags:

Imaging Phase Contrast Imaging