| 衍射增强计算机断层技术研究 |
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| 引用本文： | 汪敏,胡小方.衍射增强计算机断层技术研究[J].物理学报,2007,56(8):4989-4993. |
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| 作者姓名： | 汪敏 胡小方 |
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| 作者单位： | (1)安徽工业大学机械工程学院，马鞍山 243002; (2)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 |
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| 基金项目： | 国家自然科学基金;北京同步辐射实验室基金资助的课题 |
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| 摘 要： | 对衍射增强计算机断层技术进行了分析研究，提出了一种新方法.应用该方法只需在摇摆曲线一点处对物体进行360°范围内旋转投影成像，即可获得物体的折射率梯度分布以及吸收系数与散射系数和分布.该方法较以前的方法，大大简化了实验步骤.
关键词：
同步辐射
衍射增强
计算机断层
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| 关 键 词： | 同步辐射 衍射增强 计算机断层 |
| 文章编号： | 1000-3290/2007/56(08)/4989-05 |
| 收稿时间： | 2006-11-14 |
| 修稿时间： | 4/4/2007 12:00:00 AM |
Research on diffraction enhanced imaging computed tomography technique |
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| Wang Min,Hu Xiao-Fang.Research on diffraction enhanced imaging computed tomography technique[J].Acta Physica Sinica,2007,56(8):4989-4993. |
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| Authors: | Wang Min Hu Xiao-Fang |
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| Institution: | 1.School of Mechanical Engineering, Anhui University of Technology , Maartshan 243002, China;2.Chinese Academy Sciences Key Laboratory of Mechanical Behavior and Design of Matedals, University of Science and Technology of China, Hefei 230026, China |
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| Abstract: | The technique of diffraction enhanced imaging computed tomography is studied in this paper and a new algorithm is given. The absorption, scattering and refractive index gradient can be obtained using the new algorithm with projection data of an object in the rotation range of 0°—360° and only needs to set the analyzer at one point of the rocking curve. The experimental process of the new algorithm is much simpler than the conventional. |
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| Keywords: | synchrotron radiation diffraction enhanced imaging computed tomography |
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