Conceptual design studies of the 5m terahertz antenna for Dome A, Antarctica
文献类型：期刊论文
| 作者 | Yang, Ji1,2 ; Zuo, Ying-Xi1,2; Lou, Zheng1,2; Cheng, Jing-Quan1,2; Zhang, Qi-Zhou3; Shi, Sheng-Cai1,2; Huang, Jia-Sheng3; Yao, Qi-Jun1,2; Wang, Zhong3
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| 刊名 | RESEARCH IN ASTRONOMY AND ASTROPHYSICS
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| 出版日期 | 2013-12-01 |
| 卷号 | 13期号:12页码:1493-1508 |
| ISSN号 | 1674-4527 |
| 关键词 | Dome A, Antarctica antennas astronomy telescopes terahertz |
| 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 5m Dome A Terahertz Explorer (DATE5) has been proposed to explore new terahertz windows, primarily over wavelengths between 350 and 200 mu m. 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. |
| 学科主题 | Astronomy & Astrophysics |
| WOS标题词 | Science & Technology ; Physical Sciences |
| 类目[WOS] | Astronomy & Astrophysics |
| 研究领域[WOS] | Astronomy & Astrophysics |
| 关键词[WOS] | SITE |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000327875500010 |
| 公开日期 | 2014-01-08 |
| 源URL | [http://libir.pmo.ac.cn/handle/332002/9847]  |
| 专题 | 紫金山天文台_分子云与恒星形成研究团组 |
| 作者单位 | 1.Chinese Acad Sci, Purple Mt Observ, Nanjing 210008, Jiangsu, Peoples R China 2.Chinese Acad Sci, Key Lab Radio Astron, Nanjing 210008, Jiangsu, Peoples R China 3.Harvard Smithsonian Ctr Astrophys, Cambridge, MA 02138 USA |
| 推荐引用方式 GB/T 7714 | Yang, Ji,Zuo, Ying-Xi,Lou, Zheng,et al. Conceptual design studies of the 5m terahertz antenna for Dome A, Antarctica[J]. RESEARCH IN ASTRONOMY AND ASTROPHYSICS,2013,13(12):1493-1508. |
| APA | Yang, Ji.,Zuo, Ying-Xi.,Lou, Zheng.,Cheng, Jing-Quan.,Zhang, Qi-Zhou.,...&Wang, Zhong.(2013).Conceptual design studies of the 5m terahertz antenna for Dome A, Antarctica.RESEARCH IN ASTRONOMY AND ASTROPHYSICS,13(12),1493-1508. |
| MLA | Yang, Ji,et al."Conceptual design studies of the 5m terahertz antenna for Dome A, Antarctica".RESEARCH IN ASTRONOMY AND ASTROPHYSICS 13.12(2013):1493-1508. |
入库方式： OAI收割
来源：紫金山天文台
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