Algorithm Study on Reconstruction of Refractive Angles in Fan Beam Diffraction Enhanced Computed Tomography
WANG Min1, CEN Yu-Wan1, ZHU Pei-Ping2, HU Xiao-Fang3, YU Xiao-Liu1
1School of Mechanical Engineering, Anhui University of Technology, Maanshan 2430022Beijing Synchrotron Radiation Facility, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 1000493CAS Key Laboratory of Mechanical Behavior and Design of Materials, University of Science and Technology of China, Hefei 230026
Algorithm Study on Reconstruction of Refractive Angles in Fan Beam Diffraction Enhanced Computed Tomography
WANG Min1;CEN Yu-Wan1;ZHU Pei-Ping2;HU Xiao-Fang3;YU Xiao-Liu1
1School of Mechanical Engineering, Anhui University of Technology, Maanshan 2430022Beijing Synchrotron Radiation Facility, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 1000493CAS Key Laboratory of Mechanical Behavior and Design of Materials, University of Science and Technology of China, Hefei 230026
摘要Based on the 360°computing method of refractive angle for parallel beam diffraction enhanced imaging computed tomography (DE-CT) technique, a new algorithm used to calculate the refractive angle for fan-beam DE-CT technique is developed. The refractive index gradient can be obtained by using the new algorithm with projection data of an object in the range of 0-360°, and the new algorithm only needs to set the analyser at half slope position of the rocking curve.
Abstract：Based on the 360°computing method of refractive angle for parallel beam diffraction enhanced imaging computed tomography (DE-CT) technique, a new algorithm used to calculate the refractive angle for fan-beam DE-CT technique is developed. The refractive index gradient can be obtained by using the new algorithm with projection data of an object in the range of 0-360°, and the new algorithm only needs to set the analyser at half slope position of the rocking curve.
WANG Min;CEN Yu-Wan;ZHU Pei-Ping;HU Xiao-Fang;YU Xiao-Liu. Algorithm Study on Reconstruction of Refractive Angles in Fan Beam Diffraction Enhanced Computed Tomography[J]. 中国物理快报, 2008, 25(3): 1026-1029.
WANG Min, CEN Yu-Wan, ZHU Pei-Ping, HU Xiao-Fang, YU Xiao-Liu. Algorithm Study on Reconstruction of Refractive Angles in Fan Beam Diffraction Enhanced Computed Tomography. Chin. Phys. Lett., 2008, 25(3): 1026-1029.
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2008, Vol. 25 
