中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
conceptualdesignstudiesofthe5mterahertzantennafordomeaantarctica

文献类型:期刊论文

作者Yang Ji1; Zuo Yingxi1; Lou Zheng1; Cheng Jingquan1; Zhang Qizhou2; Shi Shengcai1; Huang Jiasheng2; Yao Qijun1; Wang Zhong2
刊名researchinastronomyandastrophysics
出版日期2013
卷号13期号:12页码:1493
ISSN号1674-4527
英文摘要As 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.
语种英语
源URL[http://libir.pmo.ac.cn/handle/332002/31536]  
专题中国科学院紫金山天文台
作者单位1.中国科学院紫金山天文台
2.Harvard-Smithsonian Center for Astrophysics,USA
推荐引用方式
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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来源:紫金山天文台

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