| 采样间隔和投影数对SR-XFMT重构质量的影响 |
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| 引用本文： | 邓彪,余笑寒,徐洪杰.采样间隔和投影数对SR-XFMT重构质量的影响[J].中国物理 C,2007,31(4):409-413. |
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| 作者姓名： | 邓彪 余笑寒 徐洪杰 |
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| 作者单位： | 中国科学院上海应用物理研究所,上海201800 |
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| 摘 要： | 同步辐射微束X射线荧光CT(SR-XFMT)是一种能无损、高空间分辨和高灵敏地探测样品内部元素含量和分布的新技术. 对SR-XFMT实验进行了计算机模拟, 讨论了采样间隔和投影数对重构质量的影响, 分析发现采样间隔对重构质量的影响比投影数的影响要大.
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| 关 键 词： | SR-XFMT 图像重构 采样间隔 投影数 |
| 收稿时间： | 2006-9-12 |
| 修稿时间： | 2006-09-122006-11-01 |
Influence of Sampling Interval and Number of Projections on the Quality of SR-XFMT Reconstruction |
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| DENG Biao,YU Xiao-Han,XU Hong-Jie.Influence of Sampling Interval and Number of Projections on the Quality of SR-XFMT Reconstruction[J].High Energy Physics and Nuclear Physics,2007,31(4):409-413. |
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| Authors: | DENG Biao YU Xiao-Han XU Hong-Jie |
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| Institution: | Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai 201800, China |
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| Abstract: | Synchrotron Radiation based X-ray Fluorescent Microtomography (SR-XFMT) is a nondestructive technique for detecting elemental composition and distribution inside a specimen with high spatial resolution and sensitivity. In this paper, computer simulation of SR-XFMT experiment is performed. The influence of the sampling interval and the number of projections on the quality of SR-XFMT image reconstruction is analyzed.It is found that the sampling interval has greater effect on the quality of reconstruction than the number of projections. |
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| Keywords: | SR-XFMT image reconstruction sampling interval number of projections |
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