Yang Ji1; Zuo Yingxi1; Lou Zheng1; Cheng Jingquan1; Zhang Qizhou2; Shi Shengcai1; Huang Jiasheng2; Yao Qijun1; Wang Zhong2
Source Publicationresearchinastronomyandastrophysics
AbstractAs the highest, coldest and driest place in Antarctica, Dome A provides exceptionally good observing conditions for ground-based observations over terahertz wavebands. The 5 m Dome A Terahertz Explorer (DATE5) has been proposed to explore new terahertz windows, primarily over wavelengths between 350 and 200 μm. DATE5 will be an open-air, fully-steerable telescope that can function by unmanned operation with remote control. The telescope will be able to endure the harsh polar environment, including high altitude, very low temperature and very low air pressure. The unique specifications, including high accuracies for surface shape and pointing and fully automatic year-around remote operation, along with a stringent limit on the periods of on-site assembly, testing and maintenance, bring a number of challenges to the design, construction, assembly and operation of this telescope. This paper introduces general concepts related to the design of the DATE5 antenna. Beginning from an overview of the environmental and operational limitations, the design specifications and requirements of the DATE5 antenna are listed. From these, major aspects on the conceptual design studies, including the antenna optics, the backup structure, the panels, the subreflector, the mounting and the antenna base structure, are explained. Some critical issues of performance are justified through analyses that use computational fluid dynamics, thermal analysis and de-icing studies, and the proposed approaches for test operation and on-site assembly. Based on these studies, we conclude that the specifications of the DATE5 antenna can generally be met by using enhanced technological approaches.
Document Type期刊论文
2.Harvard-Smithsonian Center for Astrophysics,USA
First Author Affilication中国科学院紫金山天文台
Recommended Citation
GB/T 7714
Yang Ji,Zuo Yingxi,Lou Zheng,et al. conceptualdesignstudiesofthe5mterahertzantennafordomeaantarctica[J]. researchinastronomyandastrophysics,2013,13(12):1493.
APA Yang Ji.,Zuo Yingxi.,Lou Zheng.,Cheng Jingquan.,Zhang Qizhou.,...&Wang Zhong.(2013).conceptualdesignstudiesofthe5mterahertzantennafordomeaantarctica.researchinastronomyandastrophysics,13(12),1493.
MLA Yang Ji,et al."conceptualdesignstudiesofthe5mterahertzantennafordomeaantarctica".researchinastronomyandastrophysics 13.12(2013):1493.
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