Zobrazeno 1 - 10
of 203
pro vyhledávání: '"Brun, Emmanuel"'
X-ray speckles have been used for a wide variety of experiments, ranging from imaging (and tomography), wavefront sensing, spatial coherence measurements all the way to x-ray photon correlation spectroscopy (XPCS) and ptychography. In the near-field
Externí odkaz:
http://arxiv.org/abs/2404.11633
Autor:
Magnin, Clara, Quenot, Laurene, Bohic, Sylvain, Cenda, Dan Mihai, Martínez, Manuel Fernández, Lantz, Blandine, Faure, Bertrand, Brun, Emmanuel
Phase Contrast Imaging (PCI), Dark-Field (DF) and Directional Dark-Field (DDF) imaging are recent X-ray imaging modalities that have demonstrated their interest by providing access to information and contrasts different from those provided by convent
Externí odkaz:
http://arxiv.org/abs/2304.10400
Autor:
Pavlov, Konstantin M., Paganin, David M., Morgan, Kaye S., Heyang, Li, Berujon, Sebastien, Quénot, Laurène, Brun, Emmanuel
Publikováno v:
Phys. Rev. A 104, 053505 (2021)
When a macroscopic-sized non-crystalline sample is illuminated using coherent x-ray radiation, a bifurcation of photon energy flow may occur. The coarse-grained complex refractive index of the sample may be considered to attenuate and refract the inc
Externí odkaz:
http://arxiv.org/abs/2105.10693
Autor:
Chourrout, Matthieu, Sandt, Christophe, Weitkamp, Timm, Dučić, Tanja, Meyronet, David, Baron, Thierry, Klohs, Jan, Rama, Nicolas, Boutin, Hervé, Singh, Shifali, Olivier, Cécile, Wiart, Marlène, Brun, Emmanuel, Bohic, Sylvain, Chauveau, Fabien
Publikováno v:
In Acta Biomaterialia 15 October 2023 170:260-272
Autor:
Pavlov, Konstantin M., Paganin, David M., Li, Heyang, Berujon, Sebastien, Rougé-Labriet, Hélène, Brun, Emmanuel
Publikováno v:
Journal of Optics 22 125604 (2020)
We develop X-ray Multi-modal Intrinsic-Speckle-Tracking (MIST), a form of X-ray speckle-tracking that is able to recover both the position-dependent phase shift and the position-dependent small-angle X-ray scattering (SAXS) signal of a phase object.
Externí odkaz:
http://arxiv.org/abs/1911.06814
Autor:
Pavlov, Konstantin M., Heyang, Li, Paganin, David M., Berujon, Sebastien, Rougé-Labriet, Hélène, Brun, Emmanuel
Publikováno v:
Phys. Rev. Applied 13, 054023 (2020)
We develop a means for speckle-based phase imaging of the projected thickness of a single-material object, under the assumption of illumination by spatially random time-independent x-ray speckles. These speckles are generated by passing x rays throug
Externí odkaz:
http://arxiv.org/abs/1908.00411
Publikováno v:
Phys. Rev. A 98, 053813 (2018)
We develop a speckle-tracking method for x-ray phase-contrast imaging, based on the concept of geometric flow. This flow is a conserved current associated with deformation of illuminating x-ray speckles induced by passage through a sample. The method
Externí odkaz:
http://arxiv.org/abs/1808.00456
Autor:
Kakouie, Aliakbar, Vatani, Ali, Hosseini Moghaddam, Seyed Amir, Shirani, Shiva, Ferrero, Claudio, Brun, Emmanuel
Publikováno v:
In Computers and Geosciences November 2021 156
Autor:
Broche, Ludovic, Favier, Bertrand, Rougé-Labriet, Hélène, Drevet, Sabine, Lardy, Bernard, Brun, Emmanuel, Lemasson, Benjamin
Publikováno v:
In Osteoarthritis and Cartilage Open June 2021 3(2)
Autor:
Potez, Marine, Bouchet, Audrey, Flaender, Mélanie, Rome, Claire, Collomb, Nora, Grotzer, Michael, Krisch, Michael, Djonov, Valentin, Balosso, Jacques, Brun, Emmanuel, Laissue, Jean A., Serduc, Raphaël
Publikováno v:
In International Journal of Radiation Oncology, Biology, Physics 1 June 2020 107(2):360-369