Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.1117/12.552538 |
ALMA front-end optics | |
Carter, M; Baryshev, A; Harman, M; Lazareff, B; Lamb, J; Navarro, S; John, D; Fontana, AL; Ediss, GA; Tham, CY; Withington, S; Tercero, F; Nesti, R; Tan, GH; Sekimoto, Y; Matsunaga, M; Ogawa, H; Claude, S | |
通讯作者 | Carter, M |
会议名称 | Conference on Ground-based Telescopes |
会议日期 | JUN 21-25, 2004 |
会议地点 | Glasgow, SCOTLAND |
英文摘要 | The ALMA telescope will be an interferometer of 64 antennas, which will be situated in the Atacama desert in Chile. Each antenna will have receivers that cover the frequencies 30 GHz to 970 GHZ. This frequency range is divided into 10 frequency bands. All of these receiver bands are fitted on a cartridge and cooled, with bands 1 and 2 at 15K and the other 8 are SIS receivers at a temperature of 4K. Each band has a dual polarization receiver. The optics has been designed so that the maximum of the optics is cooled to minimize the noise temperature increase to the receivers. The design of the optics will be shown for each frequency bands. Test results with the method of testing on a near field amplitude and phase measurement system will be given for the first 4 frequency bands to be used, which are bands 3 (84-116 GHz), 6 (211-275GHz), 7 (275-375 GHz) and 9 (600-702 GHz). These measurements will be compared with physical optics calculations. |
英文关键词 | ALMA heterodyne receiver subtmm optics |
来源出版物 | GROUND-BASED TELESCOPES, PTS 1 AND 2 |
ISSN | 0277-786X |
出版年 | 2004 |
卷号 | 5489 |
页码 | 1074-1084 |
ISBN | 0-8194-5421-4 |
出版者 | SPIE-INT SOC OPTICAL ENGINEERING |
类型 | Proceedings Paper |
语种 | 英语 |
国家 | France |
收录类别 | CPCI-S |
WOS记录号 | WOS:000224524300104 |
WOS类目 | Astronomy & Astrophysics ; Instruments & Instrumentation |
WOS研究方向 | Astronomy & Astrophysics ; Instruments & Instrumentation |
资源类型 | 会议论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/294904 |
作者单位 | (1)Univ Grenoble 1, IRAM, F-38406 St Martin Dheres, France |
推荐引用方式 GB/T 7714 | Carter, M,Baryshev, A,Harman, M,et al. ALMA front-end optics[C]:SPIE-INT SOC OPTICAL ENGINEERING,2004:1074-1084. |
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