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Proceedings Paper

Active surface system for the new Sardinia Radiotelescope
Author(s): Alessandro Orfei; Marco Morsiani; Giampaolo Zacchiroli; Giuseppe Maccaferri; Juri Roda; Franco Fiocchi
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Paper Abstract

In this paper we'll describe the active surface system that will be provided on the new Italian radiotelescope being in the phase of erection in the Sardinia Island. SRT (Sardinia Radiotelescope) will be a 64m shaped dish working up to 100GHz by exploiting the active surface facility designed by the authors. This facility will overcome the effects of gravity deformations on the antenna gain and will also be used to re-shape in a parabolic form the primary mirror, in order to avoid large phase error contribution on the antenna gain for the highest frequencies placed on the primary focus. Together with the description of the SRT system, a wide overview will be given regarding our previous installation of an active surface system, that can be seen like a prototype for SRT, mounted on the 32m dish of the Noto antenna.

Paper Details

Date Published: 29 September 2004
PDF: 10 pages
Proc. SPIE 5495, Astronomical Structures and Mechanisms Technology, (29 September 2004); doi: 10.1117/12.548944
Show Author Affiliations
Alessandro Orfei, Istituto di Radioastronomia, CNR (Italy)
Marco Morsiani, Istituto di Radioastronomia, CNR (Italy)
Giampaolo Zacchiroli, Istituto di Radioastronomia, CNR (Italy)
Giuseppe Maccaferri, Istituto di Radioastronomia, CNR (Italy)
Juri Roda, Istituto di Radioastronomia, CNR (Italy)
Franco Fiocchi, Istituto di Radioastronomia, CNR (Italy)

Published in SPIE Proceedings Vol. 5495:
Astronomical Structures and Mechanisms Technology
Joseph Antebi; Dietrich Lemke, Editor(s)

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