4 October 2016 X-ray microtomography at Shanghai Synchrotron Radiation facility
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Abstract
BL13W, an X-ray imaging beamline has been built and opened to users since May 6, 2009. More than 70 user proposals per year are granted and implemented at the beamline, with about 500 user visits/year. Up to now, X-ray microtomography (XMCT) is the dominated method for BL13W user operation, more than 70% user experiments were carried out with XMCT, covering the research fields in material science, biomedicine, physics, environmental science, archaeology and paleontology. To meet the user requirements, micro-CT imaging methods based on a variety of contrast mechanisms, including absorption, phase contrast, X-ray fluorescence, have been developed. Algorithms and related software have been developed achieve the low dose and fast data collection. Quantitative analysis to the three dimensional CT images is highly emphasized and related software for 3D information extraction with high precision and high efficiency, has been developed. Three-dimensional structure evolution has been attracting more and more attention in many scientific research fields. Two-Hertz dynamic phase contrast CT based on monochromatic SR beam was established at SSRF. The limitation of fluorescence X-ray CT from practical applications is the data-collection efficiency. The ordered-subsets expectation maximization algorithm was inducted to improve practicability of X-ray fluorescence computed tomography (XFCT), greatly. A scheme for full field XFCT was also proposed.
Conference Presentation
© (2016) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Rongchang Chen, Rongchang Chen, Honglan Xie, Honglan Xie, Biao Deng, Biao Deng, Guohao Du, Guohao Du, Yuqi Ren, Yuqi Ren, Yudan Wang, Yudan Wang, Guangzhao Zhou, Guangzhao Zhou, Hai Tan, Hai Tan, Yiming Yang, Yiming Yang, Liang Xu, Liang Xu, Tao Hu, Tao Hu, Qiao Li, Qiao Li, Binggang Feng, Binggang Feng, Feixiang Wang, Feixiang Wang, Tiqiao Xiao, Tiqiao Xiao, } "X-ray microtomography at Shanghai Synchrotron Radiation facility", Proc. SPIE 9967, Developments in X-Ray Tomography X, 99671B (4 October 2016); doi: 10.1117/12.2238785; https://doi.org/10.1117/12.2238785
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