Demonstration of High-Brightness and High-Resolution Coded-Source Radiography Driven by Picosecond Lasers

Demonstration of High-Brightness and High-Resolution Coded-Source Radiography Driven by Picosecond Lasers | Research Square window.SnipcartSettings = { analytics: { enabled: false } }; (function() { var accessVector = localStorage.getItem('access_vector') || ''; window.dataLayer = window.dataLayer || []; if (accessVector) { window.dataLayer.push({ user: { profile: { profileInfo: { snid: accessVector } } } }); } })(); (function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src='https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);})(window,document,'script','dataLayer','GTM-K279D39R'); Browse Preprints In Review Journals COVID-19 Preprints AJE Video Bytes Research Tools Research Promotion AJE Professional Editing AJE Rubriq About Preprint Platform In Review Editorial Policies Our Team Advisory Board Help Center Sign In Submit a Preprint Cite Share Download PDF Article Demonstration of High-Brightness and High-Resolution Coded-Source Radiography Driven by Picosecond Lasers Mengting Li, Tiankui Zhang, Minghai Yu, Yaoxiang Song, Zitao Wang, and 9 more This is a preprint; it has not been peer reviewed by a journal. https://doi.org/ 10.21203/rs.3.rs-7705476/v1 This work is licensed under a CC BY 4.0 License Status: Posted Version 1 posted You are reading this latest preprint version Abstract Picosecond petawatt laser-driven X-rays provide a powerful diagnostic tool for high-energy-density physics with high spatial resolution. In such experiments, point-projection backlighting is employed, where a quasi-point X-ray source is routinely generated by laser irradiating a wire target. The imaging spatial resolution is inherently related to the source size. This leads to a trade-off between spatial resolution and laser-to-target interception, and thus inhibits the improvement of source brightness. Coded-source radiography provides an alternative approach, which uses structured source target with high interception to form coded images, and reconstructs the high-resolution images based on source position function. Here, we demonstrate the generation of an annular X-ray source driven by a picosecond laser. By using a large-diameter target to fully intercept the laser, we achieved an annular X-ray source with the brightness several-fold higher than that of the conventional quasi-point source produced by a wire target. Coded-source radiography with this annular source maintained a high spatial resolution, and yielded a significantly higher signal-to-noise ratio (SNR) than the conventional point-projection imaging. Our findings highlight that this technique can provide clearer and more detailed radiography for high-energy-density physics experiments conducted in challenging environments. Physical sciences/Physics/Plasma physics/Plasma-based accelerators Physical sciences/Optics and photonics/Optical techniques/Imaging and sensing Full Text Additional Declarations There is no conflict of interest Cite Share Download PDF Status: Posted Version 1 posted You are reading this latest preprint version Research Square lets you share your work early, gain feedback from the community, and start making changes to your manuscript prior to peer review in a journal. As a division of Research Square Company, we’re committed to making research communication faster, fairer, and more useful. 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Also discoverable on Platform About Our Team In Review Editorial Policies Advisory Board Help Center Resources Author Services Accessibility API Access RSS feed Manage Cookie Preferences © Research Square 2026 | ISSN 2693-5015 (online) Privacy Policy Terms of Service Do Not Sell My Personal Information {"props":{"pageProps":{"initialData":{"identity":"rs-7705476","acceptedTermsAndConditions":true,"allowDirectSubmit":true,"archivedVersions":[],"articleType":"Article","associatedPublications":[],"authors":[{"id":520093157,"identity":"e7d785ae-b866-44b1-a655-7e76d043776f","order_by":0,"name":"Mengting 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