| X射线衍射和散射光束线环面聚焦镜的面形精度与像差分析 |
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| 引用本文： | 黄志刚,董晓浩,高飞,徐朝银.X射线衍射和散射光束线环面聚焦镜的面形精度与像差分析[J].光学精密工程,2004,12(1):26-30. |
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| 作者姓名： | 黄志刚 董晓浩 高飞 徐朝银 |
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| 作者单位： | 中国科学技术大学,国家同步辐射实验室,安徽,合肥,230029;中国科学技术大学,国家同步辐射实验室,安徽,合肥,230029;中国科学技术大学,国家同步辐射实验室,安徽,合肥,230029;中国科学技术大学,国家同步辐射实验室,安徽,合肥,230029 |
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| 摘 要： | 介绍了用于NSRL的X射线衍射和散射光束线中环面聚焦镜的成像原理和基本结构,分析计算了各种像差和面形精度对成像质量的影响,重点描述了镜子因受力弯曲在子午方向的曲率变化与理论值的误差以及反射表面受同步辐射光照射而产生的热载变形,进而求得实验样品上束斑成像的高度.最后用CCD探测实际光斑的尺寸,结果表明:理论计算与实测数据非常吻合.
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| 关 键 词： | 环面聚焦镜 面形误差 像差 同步辐射 |
| 文章编号： | 1004-924X(2004)01-0026-05 |
| 收稿时间： | 2003/6/24 |
| 修稿时间： | 2003年6月24日 |
Slope error and aberration analysis for XRDX beamline toroidal focusing mirror |
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| HUANG Zhi-gang,DONG Xiao-hao,GAO Fei,XU Chao-yin.Slope error and aberration analysis for XRDX beamline toroidal focusing mirror[J].Optics and Precision Engineering,2004,12(1):26-30. |
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| Authors: | HUANG Zhi-gang DONG Xiao-hao GAO Fei XU Chao-yin |
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| Affiliation: | National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei 230029, China |
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| Abstract: | A long cylindrical mirror bent into a toroidal shape in a special mechanism is usually used to focus the synchrotron radiations in both horizontal and vertical directions of X-ray beamline. The imaging principle and structural parameters of a XRDX beamline toroidal focusing mirror for NSRL use are discussed, the effect of aberrations and slope errors on the imaging quality is analyzed, the variation of curvature in meridional direction due to mirror bending, the error for theoretical value, and the thermal distortion resulting from the incident beam are discussed in detail. The actual measurements made with Marcam CCD camera showed that the theoretical calculations are in very good agreement with the actual measurements. |
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| Keywords: | toroidal focusing mirror slope error aberrations synchrotron radiation |
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