Fabricating and testing of the trim plate for the Zwicky Transient Facility

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	Fabricating and testing of the trim plate for the Zwicky Transient Facility
	Chen Xu1,2 ; Yi Zheng1,2 ; Bo Li1,2 ; Xinnan Li1,2 ; Zhe Chen1,2 ; Kunxing Chen1,2 ; Bin Liang1,2
	2018-07-10
会议名称	SPIE Advances in Optical and Mechanical Technologies for Telescopes and Instrumentation III（Vol. 10706）
会议录名称	Advances in Optical and Mechanical Technologies for Telescopes and Instrumentation III
会议日期	2018-6-10
会议地点	Austin, Texas, United States
摘要	The Zwicky Transient Facility (ZTF) is a new time-domain survey project that will use a new camera with a 47 square degree field of view mounted on the Samuel Oschin 48-inch Schmidt telescope. To achieve good image quality over all sixteen 6K*6K CCDs (386mm＊395mm corner to corner), a trim plate was added in front of the existing cemented achromatic doublet to form an air-spaced triplet corrector. The trim plate is a Schmidt corrector using fused silica with 1348mm in diameter but only 15mm in thickness. The plate has been completed at NIAOT and already been mounted to the ZTF, the PSF seems very good. The detailed fabrication process and testing to the trim plate from fine grinding to finish are presented in this paper,which includes CMM test, NULL test design, and Computer Controlled Polishing process developed at NIAOT.
关键词	Ztf Schmidt Corrector Null Test Alignment
学科领域	天文技术与方法
语种	英语
文献类型	会议论文
条目标识符	http://ir.niaot.ac.cn/handle/114a32/1547
专题	会议论文
作者单位	1.南京天文光学技术研究所 2.天文光学技术重点实验室
推荐引用方式 GB/T 7714	Chen Xu,Yi Zheng,Bo Li,et al. Fabricating and testing of the trim plate for the Zwicky Transient Facility[C],2018.

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