Abstract
We constructed a high-speed X-ray projection microscope at beamline 9D of the Pohang Light Source-II (PLS-II). The microscope was able to take X-ray projection micrographs with a submil-lisecond exposure time by using whitebeam X-rays from the PLS-II bending-magnet synchrotron radiation. It also takes advantage of edge enhancement in phase-contrast imaging, which significantly improves the visibility of soft materials and microfluids. Using the microscope, we captured the spreading of a water droplet on a hydrophilic and oleophilic nonwoven membrane at 1,264 frames per second. The computed tomography (CT), which visualized a three-dimensional wooden structure at a spatial resolution of 2.7 µm, took 2.5 s for scanning.
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Acknowledgments
This work was supported by the National Research Foundation of Korea (NRF) grant funded by the Ministry of Science and ICT (MSIT) of the Korean government (No. 2019R1A6B2A01081034), and experiments at PLS-II were supported in part by MSIT and POSTECH.
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Park, K., Kim, SG., Lee, Y.J. et al. High-Speed X-Ray Projection Microscopy at Beamline 9D of the Pohang Light Source-II. J. Korean Phys. Soc. 77, 802–805 (2020). https://doi.org/10.3938/jkps.77.802
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DOI: https://doi.org/10.3938/jkps.77.802