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Proceedings Paper • Open Access

Design and evaluation of ALMA band 9 quasioptical system
Author(s): A. Baryshev; M. Carter; W. Jellema; R. Hesper

Paper Abstract

The Atacama Large Millimeter Array (ALMA) project requires the development of reliable quasi-optical systems with requirements similar to the ones in space. The operating condition for optical elements of higher frequency channels are similar to the conditions in spacecraft, since these elements are contained within the ALMA cryostat in high vacuum and at cryogenic temperatures. The remote terrain of the Atacama Desert and the scale of project suggest that a significant effort should be made to ensure high reliability of the system. Therefore the techniques, common to a space mission are applied with this development.

In this report we would like to present the design of the quasi-optical system for ALMA band 9 (600-702 GHz) containing elements typical to a space system. A design assumptions and details will be presented for a frequency independent system. A measurement of near field antenna beam pattern (phase and amplitude) will be presented and comparison with theoretical predictions will be made.

Paper Details

Date Published: 21 November 2017
PDF: 8 pages
Proc. SPIE 10568, International Conference on Space Optics — ICSO 2004, 105680U (21 November 2017); doi: 10.1117/12.2308030
Show Author Affiliations
A. Baryshev, SRON (Netherlands)
Kapteyn Institute (Netherlands)
M. Carter, Univ. de Grenoble (France)
W. Jellema, SRON (Netherlands)
R. Hesper, SRON (Netherlands)
Kapteyn Institute (Netherlands)

Published in SPIE Proceedings Vol. 10568:
International Conference on Space Optics — ICSO 2004
Josiane Costeraste; Errico Armandillo, Editor(s)

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