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Abstract
X-ray spectroptychography is an emerging method for the chemical microanalysis of advanced nanomaterials such as catalysts and batteries. This method builds upon established synchrotron X-ray microscopy and spectromicroscopy techniques with added spatial resolution from ptychography, an algorithmic imaging technique. This minireview will introduce the technique of X-ray spectroptychography, where ptychography is performed with variable photon energy, and discuss recent results and prospects for this method.
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Jones MWM, van Riessen GA, Phillips NW, Schrank CE, Hinsley GN, Afshar N, Reinhardt J, de Jonge MD, Kewish CM. High-speed free-run ptychography at the Australian Synchrotron. JOURNAL OF SYNCHROTRON RADIATION 2022; 29:480-487. [PMID: 35254312 PMCID: PMC8900864 DOI: 10.1107/s1600577521012856] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/09/2021] [Accepted: 12/03/2021] [Indexed: 06/14/2023]
Abstract
Over the last decade ptychography has progressed rapidly from a specialist ultramicroscopy technique into a mature method accessible to non-expert users. However, to improve scientific value ptychography data must reconstruct reliably, with high image quality and at no cost to other correlative methods. Presented here is the implementation of high-speed ptychography used at the Australian Synchrotron on the XFM beamline, which includes a free-run data collection mode where dead time is eliminated and the scan time is optimized. It is shown 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-1, with 13× spatial resolution enhancement compared with the beam size. With these improvements, ptychography at velocities up to 250 µm s-1 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.
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Affiliation(s)
- Michael W. M. Jones
- Central Analytical Research Facility, Queensland University of Technology, Brisbane, Queensland 4000, Australia
| | - Grant A. van Riessen
- Department of Chemistry and Physics, La Trobe Institute for Molecular Science, La Trobe University, Bundoora, Victoria 3086, Australia
- Melbourne Centre for Nanofabrication, Clayton, Victoria 3168, Australia
| | - Nicholas W. Phillips
- Department of Engineering Science, University of Oxford, Parks Road, Oxford OX1 3PJ, United Kingdom
| | - Christoph E. Schrank
- School of Earth and Atmospheric Sciences, Faculty of Science, Queensland University of Technology, Brisbane, Queensland 4000, Australia
| | - Gerard N. Hinsley
- Department of Chemistry and Physics, La Trobe Institute for Molecular Science, La Trobe University, Bundoora, Victoria 3086, Australia
| | - Nader Afshar
- Australian Nuclear Science and Technology Organisation, Australian Synchrotron, Clayton, Victoria 3168, Australia
| | - Juliane Reinhardt
- Australian Nuclear Science and Technology Organisation, Australian Synchrotron, Clayton, Victoria 3168, Australia
| | - Martin D. de Jonge
- Australian Nuclear Science and Technology Organisation, Australian Synchrotron, Clayton, Victoria 3168, Australia
| | - Cameron M. Kewish
- Department of Chemistry and Physics, La Trobe Institute for Molecular Science, La Trobe University, Bundoora, Victoria 3086, Australia
- Australian Nuclear Science and Technology Organisation, Australian Synchrotron, Clayton, Victoria 3168, Australia
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Soft X-ray Microscopy Techniques for Medical and Biological Imaging at TwinMic—Elettra. APPLIED SCIENCES-BASEL 2021. [DOI: 10.3390/app11167216] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Progress in nanotechnology calls for material probing techniques of high sensitivity and resolution. Such techniques are also used for high-impact studies of nanoscale materials in medicine and biology. Soft X-ray microscopy has been successfully used for investigating complex biological processes occurring at micrometric and sub-micrometric length scales and is one of the most powerful tools in medicine and the life sciences. Here, we present the capabilities of the TwinMic soft X-ray microscopy end-station at the Elettra synchrotron in the context of medical and biological imaging, while we also describe novel uses and developments.
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