%0 Journal Article %1 0022-3727-32-10A-330 %A Cloetens, Peter %A Ludwig, Wolfgang %A Baruchel, José %A Guigay, Jean-Pierre %A Pernot-Rejmánková, Petra %A Salomé-Pateyron, Murielle %A Schlenker, Michel %A Buffière, Jean-Yves %A Maire, Eric %A Peix, Gilles %D 1999 %J Journal of Physics D: Applied Physics %K phase_contrast phase_retrival physics x-rays %N 10A %P A145 %T Hard x-ray phase imaging using simple propagation of a coherent synchrotron radiation beam %U http://stacks.iop.org/0022-3727/32/i=10A/a=330 %V 32 %X Particularly high coherence of the x-ray beam is associated, on the ID19 beamline at ESRF, with the small angular size of the source as seen from a point of the sample (0.1-1 µrad). This feature makes the imaging of phase objects extremely simple, by using a `propagation' technique. The physical principle involved is Fresnel diffraction. Phase imaging is being simultaneously developed as a technique and used as a tool to investigate light natural or artificial materials introducing phase variations across the transmitted x-ray beam. They include polymers, wood, crystals, alloys, composites or ceramics, exhibiting inclusions, holes, cracks, ... . `Tomographic' three-dimensional reconstruction can be performed with a filtered back-projection algorithm either on the images processed as in attenuation tomography, or on the phase maps retrieved from the images with a reconstruction procedure similar to that used for electron microscopy. The combination of diffraction (`topography') and Fresnel (`phase') imaging leads to new results.

@article{0022-3727-32-10A-330, abstract = {Particularly high coherence of the x-ray beam is associated, on the ID19 beamline at ESRF, with the small angular size of the source as seen from a point of the sample (0.1-1 µrad). This feature makes the imaging of phase objects extremely simple, by using a `propagation' technique. The physical principle involved is Fresnel diffraction. Phase imaging is being simultaneously developed as a technique and used as a tool to investigate light natural or artificial materials introducing phase variations across the transmitted x-ray beam. They include polymers, wood, crystals, alloys, composites or ceramics, exhibiting inclusions, holes, cracks, ... . `Tomographic' three-dimensional reconstruction can be performed with a filtered back-projection algorithm either on the images processed as in attenuation tomography, or on the phase maps retrieved from the images with a reconstruction procedure similar to that used for electron microscopy. The combination of diffraction (`topography') and Fresnel (`phase') imaging leads to new results.}, added-at = {2014-10-01T14:53:32.000+0200}, author = {Cloetens, Peter and Ludwig, Wolfgang and Baruchel, José and Guigay, Jean-Pierre and Pernot-Rejmánková, Petra and Salomé-Pateyron, Murielle and Schlenker, Michel and Buffière, Jean-Yves and Maire, Eric and Peix, Gilles}, biburl = {https://www.bibsonomy.org/bibtex/282faad46ce7e7ca0d49f77be64ca9014/alex_ruff}, description = {Hard x-ray phase imaging using simple propagation of a coherent synchrotron radiation beam - Abstract - Journal of Physics D: Applied Physics - IOPscience}, interhash = {f96dbe639e990caaec427b101dd649b5}, intrahash = {82faad46ce7e7ca0d49f77be64ca9014}, journal = {Journal of Physics D: Applied Physics}, keywords = {phase_contrast phase_retrival physics x-rays}, number = {10A}, pages = {A145}, timestamp = {2014-10-01T14:53:32.000+0200}, title = {Hard x-ray phase imaging using simple propagation of a coherent synchrotron radiation beam}, url = {http://stacks.iop.org/0022-3727/32/i=10A/a=330}, volume = 32, year = 1999 }