| 同步辐射X射线衍射增强CT方法研究 |
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| 引用本文： | 汪敏,胡小方,伍小平,袁清习,黄万霞,朱佩平.同步辐射X射线衍射增强CT方法研究[J].光子学报,2006,35(10):1597-1601. |
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| 作者姓名： | 汪敏 胡小方 伍小平 袁清习 黄万霞 朱佩平 |
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| 作者单位： | 1. 中国科学技术大学中国科学院材料力学行为和设计重点实验室,合肥,230026
2. 中国科学院高能物理研究所,北京,100039 |
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| 基金项目： | 国家自然科学基金
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国家自然科学基金
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BSRF共同资助项目 |
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| 摘 要： | 本文将同步辐射硬X射线衍射增强成像方法应用于材料无损检测CT方法中（简称衍射增强CT法），并对自制样品进行投影成像重建，获得了非常清晰的样品内部结构图像,并与样品的单晶吸收成像CT重建结果进行对比.结果表明，对于吸收系数相近的结构材料,衍射增强CT法可得到更好的物质内部边界.
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| 关 键 词： | 衍射增强成像 同步辐射 CT |
| 收稿时间： | 2005-06-28 |
| 修稿时间： | 2005年6月28日 |
Study on the Technique of Diffraction-enhanced Computed-tomography by Synchrotron Radiation X-ray |
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| Wang Min,Hu Xiaofang,Wu Xiaoping,Yuan Qingxi,Huang Wanxia,Zhu Peiping.Study on the Technique of Diffraction-enhanced Computed-tomography by Synchrotron Radiation X-ray[J].Acta Photonica Sinica,2006,35(10):1597-1601. |
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| Authors: | Wang Min Hu Xiaofang Wu Xiaoping Yuan Qingxi Huang Wanxia Zhu Peiping |
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| Institution: | 1.Chinese Academy Sciences Key Laboratory of Mechanical Behavior and Design of Materials, University of Science and Technology of China, Hefei 230026 ; 2. Institute of High Energy Physics, Chinese Academy Sciences, Beijing 100039 |
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| Abstract: | In this paper, the diffraction-enhanced imaging method was applied to the non-destructive testing of computed-tomography. With this technique, the 2-D cross-section image of the self-designed sample was reconstructed. The reconstructed images depict clearly the inner structures of the sample. By comparing these images with the reconstructed image obtained by the absorption imaging computedtomography, the result indicates that the technique of diffraction-enhanced computed-tomography can acquire better boundary among these elemertts that their absorption coefficients are very close in the object. |
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| Keywords: | Diffraction-enhanced imaging Synchrotron radiation Computed-tomography |
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