High speed free-run ptychography at the Australian Synchrotron

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dc.contributor.authorKewish, CMen_AU
dc.contributor.authorJones, MWMen_AU
dc.contributor.authorvan Rissen, GAen_AU
dc.contributor.authorPhillips, NWen_AU
dc.contributor.authorHinsley, GNen_AU
dc.contributor.authorSchrank, CEen_AU
dc.contributor.authorAfshar, Jen_AU
dc.contributor.authorReinhardt, Jen_AU
dc.contributor.authorde Jonge, MAen_AU
dc.date.accessioned2024-02-27T01:30:35Zen_AU
dc.date.available2024-02-27T01:30:35Zen_AU
dc.date.issued2021-11-26en_AU
dc.date.statistics2023-04-26en_AU
dc.description.abstractThe Australian Synchrotron X-ray Fluorescence Microscopy (XFM) beamline has recently implemented fast scanning ptychography, a scanning X-ray diffraction microscopy method. Ptychography creates super-resolution images from transmitted microdiffraction patterns acquired as the sample is scanned through the beam. Highspeed detectors and high-performance computers are required to iteratively reconstruct these complex images. The experimental methods and reconstruction algorithms have significantly evolved over the last decade and a half into a mature and user-friendly complementary imaging method to XFM. Here we present the implementation of high speed ptychography at the XFM beamline, which includes a free run data collection mode where detector dead time is eliminated, and the scan time is optimized. We show that free-run data collection is viable for fast and high-quality ptychography by demonstrating extremely high data rate acquisition covering areas up to 352,000 μm2 at up to 140 μm2/s, with 18× spatial resolution enhancement compared to the beam size. With these improvements, ptychography at velocities up to 250 μm/s is approaching speeds compatible with fast-scanning X-ray fluorescence microscopy. The combination of these methods provides morphological context for elemental and chemical information, enabling unique scientific outcomes. © The Authorsen_AU
dc.identifier.citationKewish, C., Jones, M., van Riessen, G., Phillips, N., Hinsley, G., Schrank, C., Afshar, N., Reinhardt, J., & de Jonge, M. (2021). High speed free-run ptychography at the Australian Synchrotron. Presentation to the ANSTO User Meeting, 24-26 November 2021, Online. Retrieved from: https://events01.synchrotron.org.au/event/146/contributions/4318/contribution.pdfen_AU
dc.identifier.conferenceenddate2021-11-26en_AU
dc.identifier.conferencenameANSTO User Meetingen_AU
dc.identifier.conferenceplaceOnlineen_AU
dc.identifier.conferencestartdate2021-11-24en_AU
dc.identifier.urihttps://events01.synchrotron.org.au/event/146/contributions/4318/contribution.pdfen_AU
dc.identifier.urihttps://apo.ansto.gov.au/handle/10238/15443en_AU
dc.language.isoenen_AU
dc.publisherAustralian Nuclear Science and Technology Organisationen_AU
dc.subjectANSTOen_AU
dc.subjectAustralian organizationsen_AU
dc.subjectX-ray fluorescence analysisen_AU
dc.subjectImagesen_AU
dc.subjectAlgorithmsen_AU
dc.subjectBeamsen_AU
dc.subjectSpatial resolutionen_AU
dc.subjectX-ray diffractionen_AU
dc.titleHigh speed free-run ptychography at the Australian Synchrotronen_AU
dc.typeConference Presentationen_AU
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