| 多能谱X射线成像技术及其在CT中的应用 |
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| 引用本文： | 郝佳,张丽,陈志强,邢宇翔,康克军.多能谱X射线成像技术及其在CT中的应用[J].CT理论与应用研究,2011,20(1):141-150. |
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| 作者姓名： | 郝佳 张丽 陈志强 邢宇翔 康克军 |
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| 作者单位： | 清华大学,工程物理系,北京,100084;清华大学,粒子技术与辐射成像教育部重点实验室,北京,100084 |
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| 摘 要： | 随着探测器技术的不断发展,具有能谱分辨能力的光子计数探测器成为人们研究的焦点,并在X射线成像领域开始得到应用.使用该种探测器,可以将具有较宽能谱分布的X射线分为不同的能区分别进行计数,获得详细的能谱信息及不同能量射线的衰减信息,由此引出了"多能谱成像"的概念.本义介绍了近些年来光子计数探测器技术的发展及其在X射线成像中...
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| 关 键 词： | 光子计数探测器 X射线成像 计算机断层扫描 多能谱技术 |
Multi-energy X-ray Imaging Technique and Its Application in Computed Tomography |
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| HAO Jia,ZHANG Li,CHEN Zhi-qiang,XING Yu-xiang,KANG Ke-jun.Multi-energy X-ray Imaging Technique and Its Application in Computed Tomography[J].Computerized Tomography Theory and Applications,2011,20(1):141-150. |
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| Authors: | HAO Jia ZHANG Li CHEN Zhi-qiang XING Yu-xiang KANG Ke-jun |
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| Institution: | HAO Jiaa,b,ZHANG Lia,CHEN Zhi-qianga,XING Yu-xianga,KANG Ke-juna,b a). Department of Engineering Physics,Tsinghua University,b). Key Laboratory of Particle & Radiation Imaging(Tsinghua University),Ministry of Education,Beijing 100084,China |
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| Abstract: | With the rapid development of X-ray detectors,photon counting energy dispersive detectors become more and more popular in X-ray imaging area. Using this kind of detectors,a polychromatic X-ray spctrum can be seperated into different energy regions and the photon number in each energy region can be counted independently,thus attenuation coefficients under different photon energies can be obtained. Multi-energy X-ray imaging technique opens up new perspectives within the fields of X-ray imaging. This paper in... |
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| Keywords: | photon counting detector X-ray imaging computed tomography multi-energy technology |
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