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Effect and compensate of grating curvature radius error in Seya-Namioka monochromator
Meng, Zhu; Tan, Xin; Bayanheshig; Wang, Wei; Liu, Zhao-Wu; Zhao, Xu-Long
2018
发表期刊Chinese Optics
ISSN20951531
卷号11期号:4页码:623-629
摘要The curvature radius error in the Seya-Namioka grating process can cause defocus aberration, which may have a great impact on the spectral performance of the grating monochromator. Based on the theory of ray tracing, we simulate and analyze the impact of curvature radius error on Seya-Namioka grating. The analysis results show that the length of the entrance and exit arm has a good compensating effect on the curvature radius error. By adjusting the length of the entrance and exit arm, the allowable range of the curvature radius error can be increased to about 2 mm. If the total adjustment amount is not changed and the length of the access arm is arbitrarily changed, the compensation effect is similar. As the error increases, the length of the arm that needs to be adjusted becomes larger, and the excessive error makes the length of the arm unable to be compensated. In addition, changing the angle between the arm and the arm can only compensate for the error of the positive curvature radius. The adjustment angle needed for compensation is too large, which will affect the design structure of the monochromator, and it is not practical to compensate the curvature radius error by changing the angle of the entrance and exit arm. The research results in this paper show that by adjusting the parameters of the grating, the influence of errors can be reduced and the margin of error can be extended. 2018, China Science Publishing & Media LTD. All right reserved.
关键词Error compensation Monochromators Ray tracing
DOI10.3788/CO.20181104.0623
收录类别EI
引用统计
文献类型期刊论文
条目标识符http://ir.ciomp.ac.cn/handle/181722/60642
专题中国科学院长春光学精密机械与物理研究所
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GB/T 7714
Meng, Zhu,Tan, Xin,Bayanheshig,et al. Effect and compensate of grating curvature radius error in Seya-Namioka monochromator[J]. Chinese Optics,2018,11(4):623-629.
APA Meng, Zhu,Tan, Xin,Bayanheshig,Wang, Wei,Liu, Zhao-Wu,&Zhao, Xu-Long.(2018).Effect and compensate of grating curvature radius error in Seya-Namioka monochromator.Chinese Optics,11(4),623-629.
MLA Meng, Zhu,et al."Effect and compensate of grating curvature radius error in Seya-Namioka monochromator".Chinese Optics 11.4(2018):623-629.
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