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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
Conference NameSPIE Advances in Optical and Mechanical Technologies for Telescopes and Instrumentation III(Vol. 10706)
Source PublicationAdvances in Optical and Mechanical Technologies for Telescopes and Instrumentation III
Conference Date2018-6-10
Conference PlaceAustin, Texas, United States
Abstract
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.
KeywordZtf Schmidt Corrector Null Test Alignment
Subject Area天文技术与方法
Language英语
Document Type会议论文
Identifierhttp://ir.niaot.ac.cn/handle/114a32/1547
Collection中国科学院南京天文光学技术研究所_会议论文
大口径光学技术研究室_会议论文
Affiliation1.南京天文光学技术研究所
2.天文光学技术重点实验室
Recommended Citation
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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