中国物理B ›› 2014, Vol. 23 ›› Issue (4): 44501-044501.doi: 10.1088/1674-1056/23/4/044501

• ELECTROMAGNETISM, OPTICS, ACOUSTICS, HEAT TRANSFER, CLASSICAL MECHANICS, AND FLUID DYNAMICS • 上一篇    下一篇

Fast synchrotron X-ray tomography study of the packing structures of rods with different aspect ratios

张晓丹a, 夏成杰a, 肖相辉b, 王宇杰a   

  1. a Department of Physics, Shanghai Jiao Tong University, Shanghai 200240, China;
    b X-ray Science Division, Argonne National Laboratory, 9700 South Cass Avenue, IL 60439, USA
  • 收稿日期:2013-11-04 修回日期:2013-12-02 出版日期:2014-04-15 发布日期:2014-04-15
  • 基金资助:
    Project supported by the National Natural Science Foundation of China (Grant No. 11175121) and the National Basic Research Program of China (Grant No. 2010CB834301). Use of the Advanced Photon Source, an Office of Science User Facility operated for the U.S. Department of Energy (DOE) Office of Science by Argonne National Laboratory, was supported by the U.S. DOE (Grant No. DE-AC02-06CH11357).

Fast synchrotron X-ray tomography study of the packing structures of rods with different aspect ratios

Zhang Xiao-Dan (张晓丹)a, Xia Cheng-Jie (夏成杰)a, Xiao Xiang-Hui (肖相辉)b, Wang Yu-Jie (王宇杰)a   

  1. a Department of Physics, Shanghai Jiao Tong University, Shanghai 200240, China;
    b X-ray Science Division, Argonne National Laboratory, 9700 South Cass Avenue, IL 60439, USA
  • Received:2013-11-04 Revised:2013-12-02 Online:2014-04-15 Published:2014-04-15
  • Contact: Wang Yu-Jie E-mail:yujiewang@sjtu.edu.cn
  • About author:45.70.Cc; 87.59.-e
  • Supported by:
    Project supported by the National Natural Science Foundation of China (Grant No. 11175121) and the National Basic Research Program of China (Grant No. 2010CB834301). Use of the Advanced Photon Source, an Office of Science User Facility operated for the U.S. Department of Energy (DOE) Office of Science by Argonne National Laboratory, was supported by the U.S. DOE (Grant No. DE-AC02-06CH11357).

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摘要： We present a fast synchrotron X-ray tomography study of the packing structures of rods with different aspect ratios. Utilizing the high flux of the X-rays generated from the third-generation synchrotron source, we can complete a high-resolution tomography scan within a short period of time, after which the three-dimensional (3D) packing structure can be obtained for the subsequent structural analysis. The image phase-retrieval procedure has been implemented to enhance the image contrast. We systematically investigated the effects of particle shape and aspect ratio on the structural properties including packing density and contact number. It turns out that large aspect ratio rod packings will have wider distributions of free volume fraction and larger mean contact numbers.

关键词: synchrotron X-ray imaging, tomography, rod packing structure

Abstract: We present a fast synchrotron X-ray tomography study of the packing structures of rods with different aspect ratios. Utilizing the high flux of the X-rays generated from the third-generation synchrotron source, we can complete a high-resolution tomography scan within a short period of time, after which the three-dimensional (3D) packing structure can be obtained for the subsequent structural analysis. The image phase-retrieval procedure has been implemented to enhance the image contrast. We systematically investigated the effects of particle shape and aspect ratio on the structural properties including packing density and contact number. It turns out that large aspect ratio rod packings will have wider distributions of free volume fraction and larger mean contact numbers.

Key words: synchrotron X-ray imaging, tomography, rod packing structure

中图分类号:  (Static sandpiles; granular compaction)

  • 45.70.Cc
87.59.-e (X-ray imaging)