Mechanical design and finite element analyses of surface bending mechanism for X-ray optics

doi:10.1016/j.precisioneng.2018.03.005

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	Mechanical design and finite element analyses of surface bending mechanism for X-ray optics
	Gong, X. P.; Lu, Q. P.; Wang, Y.; Song, Y.
	2018
发表期刊	Precision Engineering-Journal of the International Societies for Precision Engineering and Nanotechnology
ISSN	0141-6359
卷号	53 页码:107-119
摘要	A new surface diffraction beamline is designed at the Shanghai Synchrotron Radiation Facility (SSRF). The purpose is to provide a high-performance instrument for measurements of the surface interfaces of structures constructed using different materials for researchers from different countries. There are many technical difficulties associated with the construction of the beamline. One of them is the achievement of a high-focusing quality so as to reduce stray lights from substrates because of the small grazing incident angles. Two perpendicular focusing mirrors are adopted to focus the beam. In order to obtain an excellent light spot, the two mirrors are bent to obtain the expected curvature radii and surface errors. In this study, a new X-ray optics bending mechanism is designed for the mirrors, and its principle of operation is described. The mechanical state, the bending resolving power, and the suppression methods for surface errors are studied using finite element analyses. The mirror's minimum bending radius and bending resolving power are 1002 m and 24.2 m, respectively, and its suppression ability for surface error is better than 0.78 mu rad. These characteristics are better than the predictions, and further improve the performance of the beamline.
关键词	Surface bending mechanism X-ray optics Synchrotron radiation Mechanical design Finite element analysis mirrors Engineering Science & Technology - Other Topics Instruments & Instrumentation
DOI	10.1016/j.precisioneng.2018.03.005
收录类别	SCI ; EI
引用统计
文献类型	期刊论文
条目标识符	http://ir.ciomp.ac.cn/handle/181722/61053
专题	中国科学院长春光学精密机械与物理研究所
推荐引用方式 GB/T 7714	Gong, X. P.,Lu, Q. P.,Wang, Y.,et al. Mechanical design and finite element analyses of surface bending mechanism for X-ray optics[J]. Precision Engineering-Journal of the International Societies for Precision Engineering and Nanotechnology,2018,53:107-119.
APA	Gong, X. P.,Lu, Q. P.,Wang, Y.,&Song, Y..(2018).Mechanical design and finite element analyses of surface bending mechanism for X-ray optics.Precision Engineering-Journal of the International Societies for Precision Engineering and Nanotechnology,53,107-119.
MLA	Gong, X. P.,et al."Mechanical design and finite element analyses of surface bending mechanism for X-ray optics".Precision Engineering-Journal of the International Societies for Precision Engineering and Nanotechnology 53(2018):107-119.

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