Arid
DOI10.1117/12.552538
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
ISSN0277-786X
出版年2004
卷号5489
页码1074-1084
ISBN0-8194-5421-4
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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