High-resolution X-ray phase-contrast tomography from single-distance radiographs applied to developmental stages of Xenopus laevis
| Autor: | Lukas Helfen, Tilo Baumbach, Venera Altapova, Julian Moosmann, Daniel Hänschke, Ralf Hofmann |
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| Přispěvatelé: | Karlsruhe Inst Technol, Inst Photon Sci & Synchrotron Radiat, Hermann von Helmholtz Pl 1, D-76344 Eggenstein Leopoldshafen, Germany, Karlsruhe Inst Technol, Lab Appl Synchrotron Radiat, D-76128 Karlsruhe, Germany, European Synchrotron Radiation Facility (ESRF) |
| Jazyk: | angličtina |
| Rok vydání: | 2012 |
| Předmět: |
[PHYS]Physics [physics]
History biology business.industry Phase (waves) Xenopus Duality (optimization) Function (mathematics) biology.organism_classification 01 natural sciences Computer Science Applications Education 010309 optics Nonlinear system Optics 0103 physical sciences Quasiparticle BIOLOGICAL APPLICATIONS Point (geometry) PHASE COHERENCE 010306 general physics Dispersion (water waves) business Algorithm Mathematics |
| Zdroj: | 11th International Conference on Synchrotron Radiation Instrumentation (SRI) 11th International Conference on Synchrotron Radiation Instrumentation (SRI), Jul 2012, Lyon, France. 5 p., ⟨10.1088/1742-6596/425/19/192003⟩ 'Journal of Physics : Conference Series ', vol: 425, pages: 192003-1-1920033-5 (2013) |
| ISSN: | 1742-6588 |
| DOI: | 10.1088/1742-6596/425/19/192003⟩ |
| Popis: | International audience; Considering a pure and not necessarily weak phase object, we review a noniterative and nonlinear single-distance phase-retrieval algorithm. The latter exploits the fact that a well-known linear contrast-transfer function, which incorporates all orders in object-detector distance, can be modified to yield a quasiparticle dispersion. Accepting a small loss of information, this algorithm also retrieves the high-frequency parts of the phase in an artefact free way. We point out an extension of this highly resolving quasiparticle approach for mixed objects by assuming a global attenuation-phase duality. Tomographically reconstructing two developmental stages in Xenopus laevis, we compare our approach with a linear algorithm, based on the transport-of-intensity equation, which suppresses high-frequency information |
| Databáze: | OpenAIRE |
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