| 高辐射通量空间相干X射线管(英文) |
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| 引用本文： | 郭金川,周彬,刘鑫,任席奎,牛憨笨.高辐射通量空间相干X射线管(英文)[J].深圳大学学报(理工版),2011,28(4). |
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| 作者姓名： | 郭金川 周彬 刘鑫 任席奎 牛憨笨 |
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| 作者单位： | 深圳大学光电子学研究所,光电子器件与系统教育部重点实验室,广东省光电子器件与系统重点实验室,深圳 518060 |
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| 基金项目： | supported by the National Nature Science Foundation of China(11074172); the Key Important Project of the Basic Research Program of Shenzhen(JC200903130326A)~~ |
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| 摘 要： | 针对光栅X射线相位衬度成像技术中如何获取高辐射通量和高空间相干的台式X射线源的问题,研制一种桌面X射线源.与传统X射线源不同,其阳极采用平行深沟道阵列的结构靶,灯丝发出的电子经加速聚焦后作用于结构靶,产生高辐射通量的一维相干X射线,其焦斑呈平行线阵列结构分布.将这种X射线管用于基于光栅的X射线相衬成像系统的光源,利用5步相移法得到了新鲜鸡翅的X射线相衬图像照片.
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| 关 键 词： | X射线产生 X射线管 结构阳极 焦斑 相干性 电子束 |
An X-ray tube of high radiation flux and spatial coherence |
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| GUO Jin-chuan,ZHOU Bin,LIU Xin,REN Xi-kui,NIU Han-ben.An X-ray tube of high radiation flux and spatial coherence[J].Journal of Shenzhen University(Science &engineering),2011,28(4). |
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| Authors: | GUO Jin-chuan ZHOU Bin LIU Xin REN Xi-kui NIU Han-ben |
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| Affiliation: | GUO Jin-chuan,ZHOU Bin,LIU Xin,REN Xi-kui,and NIU Han-benInstitute of OptoelectronicsKey Laboratory of Optoelectronic Devices and Systems of Ministry of EducationKey Laboratory of Optoelectronic Devices and Systems of Guangdong ProvinceShenzhen UniversityShenzhen 518060P.R.Chin |
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| Abstract: | A challenge of grating-based X-ray phase-contrast imaging technology on practical applications is how to obtain a table-top X-ray source of high radiation flux and of high spatial coherence.Such an X-ray source is presented in this paper.The conventional anode of X-ray tube is superseded by a structured target that is formed by a group of parallel deep line grooves.When electrons from filament are accelerated to impinge the target,X-rays of high flux with one-dimensional coherence are emitted with a focal s... |
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| Keywords: | X-ray production X-ray tubes structured anode focal spot coherence electron beams |
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