Three-dimensional propagation in near-field tomographic X-ray phase retrieval
- Institut für Röntgenphysik, Georg-August-Universität Göttingen, Friedrich-Hund-Platz 1, Göttingen (Germany)
An extension of phase retrieval algorithms for near-field X-ray (propagation) imaging to three dimensions is presented, enhancing the quality of the reconstruction by exploiting previously unused three-dimensional consistency constraints. This paper presents an extension of phase retrieval algorithms for near-field X-ray (propagation) imaging to three dimensions, enhancing the quality of the reconstruction by exploiting previously unused three-dimensional consistency constraints. The approach is based on a novel three-dimensional propagator and is derived for the case of optically weak objects. It can be easily implemented in current phase retrieval architectures, is computationally efficient and reduces the need for restrictive prior assumptions, resulting in superior reconstruction quality.
- OSTI ID:
- 22535124
- Journal Information:
- Acta Crystallographica. Section A, Foundations and Advances (Online), Vol. 72, Issue Pt 2; Other Information: PMCID: PMC4770872; PMID: 26919373; PUBLISHER-ID: mq5036; OAI: oai:pubmedcentral.nih.gov:4770872; Copyright (c) Ruhlandt and Salditt 2016; This is an open-access article distributed under the terms of the Creative Commons Attribution Licence, which permits unrestricted use, distribution, and reproduction in any medium, provided the original authors and source are cited.; Country of input: International Atomic Energy Agency (IAEA); ISSN 2053-2733
- Country of Publication:
- United Kingdom
- Language:
- English
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