X-ray multi-modal intrinsic-speckle-tracking

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dc.contributor.authorPaganin DM
dc.contributor.authorBerujon S
dc.contributor.authorRougé-Labriet HN
dc.contributor.authorBrun E
dc.contributor.authorPavlov, Konstantin
dc.contributor.authorLi, Heyang
dc.date.accessioned2021-09-23T22:57:25Z
dc.date.available2021-09-23T22:57:25Z
dc.date.issued2020en
dc.date.updated2021-07-02T23:28:42Z
dc.description.abstractWe 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.en
dc.identifier.citationPavlov KM, Paganin DM, Li HT, Berujon S, Rougé-Labriet HN, Brun E (2020). X-ray multi-modal intrinsic-speckle-tracking. Journal of Optics (United Kingdom). 22(12). 125604-125604.en
dc.identifier.doihttp://doi.org/10.1088/2040-8986/abc313
dc.identifier.issn2040-8978
dc.identifier.issn2040-8986
dc.identifier.urihttps://hdl.handle.net/10092/102552
dc.language.isoen
dc.publisherIOP Publishingen
dc.rightsAll rights reserved unless otherwise stateden
dc.rights.urihttp://hdl.handle.net/10092/17651en
dc.subjecteess.IVen
dc.subjecteess.IVen
dc.subjectphysics.app-phen
dc.subjectphysics.opticsen
dc.subject.anzsrc0205 Optical Physicsen
dc.subject.anzsrc0206 Quantum Physicsen
dc.subject.anzsrc0906 Electrical and Electronic Engineeringen
dc.subject.anzsrcFields of Research::51 - Physical sciences::5105 - Medical and biological physicsen
dc.subject.anzsrcFields of Research::51 - Physical sciences::5102 - Atomic, molecular and optical physicsen
dc.subject.anzsrcFields of Research::40 - Engineering::4003 - Biomedical engineeringen
dc.titleX-ray multi-modal intrinsic-speckle-trackingen
dc.typeJournal Articleen
uc.collegeFaculty of Science
uc.departmentSchool of Physical & Chemical Sciences
uc.departmentMathematics and Statistics
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