C
Christian David
Researcher at Paul Scherrer Institute
Publications - 391
Citations - 22052
Christian David is an academic researcher from Paul Scherrer Institute. The author has contributed to research in topics: Zone plate & Fresnel zone. The author has an hindex of 70, co-authored 364 publications receiving 20110 citations. Previous affiliations of Christian David include European Synchrotron Radiation Facility.
Papers
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Journal ArticleDOI
Phase retrieval and differential phase-contrast imaging with low-brilliance X-ray sources
TL;DR: In this article, a setup consisting of three transmission gratings can efficiently yield quantitative differential phase-contrast images with conventional X-ray tubes, which can be scaled up to large fields of view.
Journal ArticleDOI
X-ray phase imaging with a grating interferometer.
Timm Weitkamp,Ana Diaz,Christian David,Franz Pfeiffer,Marco Stampanoni,Peter Cloetens,Eric Ziegler +6 more
TL;DR: Using a high-efficiency grating interferometer for hard X rays (10-30 keV) and a phase-stepping technique, separate radiographs of the phase and absorption profiles of bulk samples can be obtained from a single set of measurements.
Journal ArticleDOI
High-Resolution Scanning X-ray Diffraction Microscopy
Pierre Thibault,Martin Dierolf,Andreas Menzel,Oliver Bunk,Christian David,Franz Pfeiffer,Franz Pfeiffer +6 more
TL;DR: A ptychographic imaging method is demonstrated that bridges the gap between CDI and STXM by measuring complete diffraction patterns at each point of a STXM scan.
Journal ArticleDOI
Hard-X-ray dark-field imaging using a grating interferometer
Franz Pfeiffer,Franz Pfeiffer,Martin Bech,Oliver Bunk,P. Kraft,E. F. Eikenberry,Christian Brönnimann,Christian Grünzweig,Christian David +8 more
TL;DR: This letter reports a new approach on the basis of a grating interferometer that can efficiently yield dark-field scatter images of high quality, even with conventional X-ray tube sources and is fully compatible with conventional transmission radiography and a recently developed hard-X-ray phase-contrast imaging scheme.
Journal ArticleDOI
Hard-X-Ray Lensless Imaging of Extended Objects
John M. Rodenburg,A C Hurst,A. G. Cullis,B. R. Dobson,Franz Pfeiffer,Oliver Bunk,Christian David,Konstantins Jefimovs,Ian Johnson +8 more
TL;DR: A hard-x-ray microscope that does not use a lens and is not limited to a small field of view or an object of finite size is demonstrated, which has revolutionary implications for x-ray imaging of all classes of specimen.