| 一种新型光学渡越辐射光学特性的测量方法 |
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| 引用本文： | 郑艳芳,陈良益.一种新型光学渡越辐射光学特性的测量方法[J].光子学报,2009,38(2):371-374. |
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| 作者姓名： | 郑艳芳 陈良益 |
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| 作者单位： | 1. 中国科学院西安光学精密机械研究所,西安,710119;中国科学院研究生院,北京,100049
2. 中国科学院西安光学精密机械研究所,西安,710119 |
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| 基金项目： | 国防科技重点实验室基金(51448030105ZK1801)资助 |
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| 摘 要： | 为了解决理论测量中,光学渡越辐射焦平面的空间角分布与像平面的束剖面光路互相影响,难以同时测量,提出了一种新型的光学渡越辐射光学特性的测量方法.介绍了其光路原理和结构方案,分析了测量结构中的OTR镜头、分光棱镜与铅屏蔽结构的技术难点与解决方法.结果表明：系统克服了单功能测量、成像质量差等缺点,在ICCD相机上能够同步获得较好的光学渡越辐射的束剖面和空间角分布图案,且基本屏蔽了对图像采集有着强烈干扰的X-射线等高能辐射.
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| 关 键 词： | 光学渡越辐射 光学渡越辐射镜头 分光棱镜 铅屏蔽 |
| 收稿时间： | 2007-09-21 |
| 修稿时间： | 2007-10-30 |
A New Optical Characterists Measurement for Optical Transition Radiation |
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| ZHENG Yan-fang,CHEN Liang-yi.A New Optical Characterists Measurement for Optical Transition Radiation[J].Acta Photonica Sinica,2009,38(2):371-374. |
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| Authors: | ZHENG Yan-fang CHEN Liang-yi |
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| Institution: | 1 Xi'an Institute of Optics and Precision Mechanics;Chinese Academy of Sciences;Xi'an 710119;China;2 Graduate University of Chinese Academy of Sciences;Beijing 100049;China |
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| Abstract: | In order to solve the problem that the paths of angular distribution at focus plane and beam spot at image plane can not be measured at the same time,an advanced measurement of optical transition radiation was proposed.The light path principle and the machine structure were introduced.The technical difficulties and resolvent of OTR lens ,the beamsplitting prism and lead shield were analyzed.The results show that the system overcomes single function measure and the bad imaging.The better pictures of angular distribution and beam spot can be obtained synchronously on ICCD cameras.The high power radiations such as X-rays disturb the pattern collection intensively,and are mostly shielded. |
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| Keywords: | Optical transition radiation OTR lens Beamsplitting prism Lead shield |
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