O
Oliver Bunk
Researcher at Paul Scherrer Institute
Publications - 228
Citations - 17320
Oliver Bunk is an academic researcher from Paul Scherrer Institute. The author has contributed to research in topics: Scattering & Tomography. The author has an hindex of 61, co-authored 224 publications receiving 15755 citations. Previous affiliations of Oliver Bunk include University of Hamburg & University of Maryland, College Park.
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
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.
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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
Ptychographic X-ray computed tomography at the nanoscale
Martin Dierolf,Andreas Menzel,Pierre Thibault,Philipp Schneider,Cameron M. Kewish,Roger Wepf,Oliver Bunk,Franz Pfeiffer +7 more
TL;DR: An X-ray computed tomography technique that generates quantitative high-contrast three-dimensional electron density maps from phase contrast information without reverting to assumptions of a weak phase object or negligible absorption is described.
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.