X-ray multi-modal intrinsic-speckle-tracking
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Compte-rendu et recension critique d'ouvrage
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Title :
X-ray multi-modal intrinsic-speckle-tracking
Author(s) :
Pavlov, Konstantin [Auteur]
University of Canterbury [Christchurch]
Paganin, David [Auteur]
Monash university
Li, Heyang (thomas) [Auteur]
University of Canterbury [Christchurch]
Berujon, Sebastien [Auteur]
European Synchrotron Radiation Facility [Grenoble] [ESRF]
Rougé-Labriet, Hélène [Auteur]
Synchrotron Radiation for Biomedicine = Rayonnement SynchroTROn pour la Recherche BiomédicalE [STROBE]
Marrow Adiposity & Bone Lab - Adiposité Médullaire et Os - ULR 4490 [MABLab]
Brun, Emmanuel [Auteur]
Synchrotron Radiation for Biomedicine = Rayonnement SynchroTROn pour la Recherche BiomédicalE [STROBE]
Synchrotron Radiation for Biomedicine = Rayonnement SynchroTROn pour la Recherche BiomédicalE [STROBE]
University of Canterbury [Christchurch]
Paganin, David [Auteur]
Monash university
Li, Heyang (thomas) [Auteur]
University of Canterbury [Christchurch]
Berujon, Sebastien [Auteur]
European Synchrotron Radiation Facility [Grenoble] [ESRF]
Rougé-Labriet, Hélène [Auteur]
Synchrotron Radiation for Biomedicine = Rayonnement SynchroTROn pour la Recherche BiomédicalE [STROBE]
Marrow Adiposity & Bone Lab - Adiposité Médullaire et Os - ULR 4490 [MABLab]
Brun, Emmanuel [Auteur]
Synchrotron Radiation for Biomedicine = Rayonnement SynchroTROn pour la Recherche BiomédicalE [STROBE]
Synchrotron Radiation for Biomedicine = Rayonnement SynchroTROn pour la Recherche BiomédicalE [STROBE]
Journal title :
Journal of Optics
Pages :
125604
Publisher :
Institute of Physics (IOP)
Publication date :
2020-11-11
ISSN :
2040-8978
HAL domain(s) :
Physique [physics]/Physique [physics]/Optique [physics.optics]
English abstract : [en]
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) ...
Show more >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. MIST is based on combining a Fokker–Planck description of paraxial x-ray optics, with an optical-flow formalism for x-ray speckle-tracking. Only two images need to be taken in the presence of the sample, corresponding to two different transverse positions of the speckle-generating membrane, in order to recover both the refractive and local-SAXS properties of the sample. Like the optical-flow x-ray phase-retrieval method which it generalises, the MIST method implicitly rather than explicitly tracks both the transverse motion and the diffusion of speckles that is induced by the presence of a sample. Application to x-ray synchrotron data shows the method to be efficient, rapid and stable.Show less >
Show more >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. MIST is based on combining a Fokker–Planck description of paraxial x-ray optics, with an optical-flow formalism for x-ray speckle-tracking. Only two images need to be taken in the presence of the sample, corresponding to two different transverse positions of the speckle-generating membrane, in order to recover both the refractive and local-SAXS properties of the sample. Like the optical-flow x-ray phase-retrieval method which it generalises, the MIST method implicitly rather than explicitly tracks both the transverse motion and the diffusion of speckles that is induced by the presence of a sample. Application to x-ray synchrotron data shows the method to be efficient, rapid and stable.Show less >
Language :
Anglais
Popular science :
Non
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Submission date :
2024-10-22T04:54:31Z
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