{"id":3060,"date":"2022-05-02T11:24:10","date_gmt":"2022-05-02T16:24:10","guid":{"rendered":"https:\/\/wordpress.cels.anl.gov\/lans-seminars\/?post_type=tribe_events&#038;p=3060"},"modified":"2022-08-05T15:48:17","modified_gmt":"2022-08-05T20:48:17","slug":"lans-seminar-49","status":"publish","type":"tribe_events","link":"https:\/\/wordpress.cels.anl.gov\/lans-seminars\/event\/lans-seminar-49\/","title":{"rendered":"LANS Seminar"},"content":{"rendered":"<p><strong>Seminar Title<\/strong>: Advanced Algorithms of X-ray Wavefront Sensing and Multi-contrast Imaging Methods for Synchrotron Facilities<br \/>\n<strong>Speaker<\/strong>: Zhi Qiao, Postdoctoral Appointee, ANL\/AUP<\/p>\n<p><strong>Date\/Time<\/strong>: August 10, 2022 \/ 10:30 AM &#8211; 11:30 AM<br \/>\n<strong>Location<\/strong>: See meeting URL on the cels-seminars website\u00a0(requires Argonne login)<\/p>\n<p><strong>Host<\/strong>: Todd Munson<\/p>\n<hr \/>\n<p><strong>Description<\/strong>: X-ray beam diagnostics, wavefront sensing, and at-wavelength metrology have become crucial and essential at synchrotron radiation and free-electron laser facilities worldwide. Specifically, the availability of advanced at-wavelength characterization tools and methods is critical to developing and fabricating the high-quality focusing optics required to achieve diffraction-limited focusing in many instruments deployed at modern X-ray light sources. The multi-contrast imaging methods are also actively investigated for both wavefront sensing and X-ray imaging of bio-samples, including absorption, quantitative phase, and dark-field information. This presentation reports on the latest developments of the advanced algorithms of wavefront sensing and multi-contrast imaging methods at the Advanced Photon Source, including wavelet-transform-based speckle tracking (WXST), optimization-based coded-mask-based multi-contrast imaging (CMMI) method, and AI-accelerated real-time X-ray phase-contrast imaging method (Speckle-based Phase-contrast Imaging Neural Network, SPINNet). As a result of enhancements to both the hardware and software elements, these methods exhibit extraordinary performance in terms of computational efficiency, sensitivity, and resolution. In addition, the wavefront sensing and multi-contrast imaging method based on deep learning, SPINNet, has shown real-time measurement ability with superior quality compared with conventional methods, which promises applications in real-time beamline diagnostics and in-situ imaging of biomedical samples and battery materials both in 2D and 3D.<\/p>\n<p><em>Please note that the meeting URL for this event can be seen on the <\/em>cels-seminars website<em>, which requires an Argonne login.<\/em><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Seminar Title: Advanced Algorithms of X-ray Wavefront Sensing and Multi-contrast Imaging Methods for Synchrotron Facilities Speaker: Zhi Qiao, Postdoctoral Appointee, ANL\/AUP Date\/Time: August 10, 2022 \/ 10:30 AM &#8211; 11:30 AM Location: See meeting URL on the cels-seminars website\u00a0(requires Argonne &hellip; <a href=\"https:\/\/wordpress.cels.anl.gov\/lans-seminars\/event\/lans-seminar-49\/\">Continue reading <span class=\"meta-nav\">&rarr;<\/span><\/a><\/p>\n","protected":false},"author":43,"featured_media":0,"template":"","meta":{"_acf_changed":false,"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"_tribe_events_status":"","_tribe_events_status_reason":"","footnotes":"","_members_access_role":[],"_members_access_error":""},"tags":[],"tribe_events_cat":[2],"class_list":["post-3060","tribe_events","type-tribe_events","status-publish","hentry","tribe_events_cat-seminar","cat_seminar"],"acf":[],"_links":{"self":[{"href":"https:\/\/wordpress.cels.anl.gov\/lans-seminars\/wp-json\/wp\/v2\/tribe_events\/3060","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/wordpress.cels.anl.gov\/lans-seminars\/wp-json\/wp\/v2\/tribe_events"}],"about":[{"href":"https:\/\/wordpress.cels.anl.gov\/lans-seminars\/wp-json\/wp\/v2\/types\/tribe_events"}],"author":[{"embeddable":true,"href":"https:\/\/wordpress.cels.anl.gov\/lans-seminars\/wp-json\/wp\/v2\/users\/43"}],"version-history":[{"count":2,"href":"https:\/\/wordpress.cels.anl.gov\/lans-seminars\/wp-json\/wp\/v2\/tribe_events\/3060\/revisions"}],"predecessor-version":[{"id":3137,"href":"https:\/\/wordpress.cels.anl.gov\/lans-seminars\/wp-json\/wp\/v2\/tribe_events\/3060\/revisions\/3137"}],"wp:attachment":[{"href":"https:\/\/wordpress.cels.anl.gov\/lans-seminars\/wp-json\/wp\/v2\/media?parent=3060"}],"wp:term":[{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/wordpress.cels.anl.gov\/lans-seminars\/wp-json\/wp\/v2\/tags?post=3060"},{"taxonomy":"tribe_events_cat","embeddable":true,"href":"https:\/\/wordpress.cels.anl.gov\/lans-seminars\/wp-json\/wp\/v2\/tribe_events_cat?post=3060"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}