Design and diffraction intensity test of toothed occulter

	Design and diffraction intensity test of toothed occulter
	Sun, M.-Z.; H.-X. Zhang; Z.-W. Lu and H.-Y. Bu
	2015
发表期刊	Guangxue Jingmi Gongcheng/Optics and Precision Engineering
卷号	23 期号:1 页码:70-77
摘要	According to the requirements of a coronagraph for suppressing the stray light in Solar Polar Orbit Radio Telescope Mission, a toothed occulter for the coronagraph was designed to suppress the diffracted light in a higher level. The diffracted light distribution from the toothed occulter was calculated by using the semi-infinite rectangle method, and an optimized shape with the lowest diffracted light was obtained. Meanwhile, the stray light level of the optimized toothed occulter was measured experimentally, and the obtained result was compared with the diffraction intensity of a round disk occulter. It verifies that the toothed occulter has an advantage over the round disk in diffracted light reduction. The measured data show that the suppression of diffracted light of the proposed toothed occulter has been up to 10-7 level after optimization, higher than internationally 10-6 level in the lab. The suppression level has been met the demands of large view coronagraphs. , 2015, Chinese Academy of Sciences. All right reserved.
文章类型	期刊论文
收录类别	EI
文献类型	期刊论文
条目标识符	http://ir.ciomp.ac.cn/handle/181722/56087
专题	中科院长春光机所知识产出
推荐引用方式 GB/T 7714	Sun, M.-Z.,H.-X. Zhang,Z.-W. Lu and H.-Y. Bu. Design and diffraction intensity test of toothed occulter[J]. Guangxue Jingmi Gongcheng/Optics and Precision Engineering,2015,23(1):70-77.
APA	Sun, M.-Z.,H.-X. Zhang,&Z.-W. Lu and H.-Y. Bu.(2015).Design and diffraction intensity test of toothed occulter.Guangxue Jingmi Gongcheng/Optics and Precision Engineering,23(1),70-77.
MLA	Sun, M.-Z.,et al."Design and diffraction intensity test of toothed occulter".Guangxue Jingmi Gongcheng/Optics and Precision Engineering 23.1(2015):70-77.

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