CAS OpenIR  > 中科院上海应用物理研究所2011-2020年
Methodology development and application of X-ray imaging beamline at SSRF
Xie, HL; Deng, B; Du, GH; Fu, YN; Guo, H; Xue, YL; Peng, GY; Tao, F; Zhang, L; Xiao, TQ
AbstractThis paper introduces some latest developments regarding the X-ray imaging methodology and applications of the X-ray imaging and biomedical application beamline (BL13W1) at Shanghai Synchrotron Radiation Facility in the past 5 years. The photon energy range of the beamline is 8-72.5 keV. Several sets of X-ray imaging detectors with different pixel sizes (0.19-24 mu m) are used to realize X-ray microcomputed tomography (X-ray micro-CT) and X-ray in-line phase-contrast imaging. To satisfy the requirements of user experiments, new X-ray imaging methods and image processing techniques are developed. In vivo dynamic micro-CT experiments with living insects are performed in 0.5 s (sampling rate of 2 Hz, 2 tomograms/s) with a monochromatic beam from a wiggler source and in 40 ms (sampling rate of 25 Hz, 25 tomograms/s) with a white beam from a bending magnet source. A new X-ray imaging method known as move contrast X-ray imaging is proposed, with which blood flow and moving tissues in raw images can be distinguished according to their moving frequencies in the time domain. Furthermore, X-ray speckle-tracking imaging with twice exposures to eliminate the edge enhancement effect is developed. A high-precision quantification method is realized to measure complex three-dimensional blood vessels obtained via X-ray micro-CT. X-ray imaging methods such as three-dimensional X-ray diffraction microscopy, small-angle X-ray scattering CT, and X-ray fluorescence CT are developed, in which the X-ray micro-CT imaging method is combined with other contrast mechanisms such as diffraction, scattering, and fluorescence contrasts respectively. Moreover, an X-ray nano-CT experiment is performed with a 100 nm spatial resolution. Typical user experimental results from the fields of material science, biomedicine, paleontology, physics, chemistry, and environmental science obtained on the beamline are provided.
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Affiliation1.Chinese Acad Sci, Shanghai Inst Appl Phys, Shanghai 201800, Peoples R China
2.Chinese Acad Sci, Shanghai Adv Res Inst, Shanghai Synchrotron Radiat Facil SSRF, Shanghai 201204, Peoples R China
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GB/T 7714
Xie, HL,Deng, B,Du, GH,et al. Methodology development and application of X-ray imaging beamline at SSRF[J]. NUCLEAR SCIENCE AND TECHNIQUES,2020,31(10):-.
APA Xie, HL.,Deng, B.,Du, GH.,Fu, YN.,Guo, H.,...&Xiao, TQ.(2020).Methodology development and application of X-ray imaging beamline at SSRF.NUCLEAR SCIENCE AND TECHNIQUES,31(10),-.
MLA Xie, HL,et al."Methodology development and application of X-ray imaging beamline at SSRF".NUCLEAR SCIENCE AND TECHNIQUES 31.10(2020):-.
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