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Performance of the updated Southern African Large Telescope prime-focus guidance system
Author(s): Janus D. Brink; Ockert J. Strydom; Stephen N. Hulme; Anthony R. Koeslag; Deneys S. Maartens; Keith R. J. Browne; Eben P. Wiid
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Paper Abstract

Major improvements to the SALT prime focus guidance system have been implemented over the last two years in the form of a new compact, modular and removable system with high optical efficiency. A double-probe positioning system allows both translation and rotation guidance, while optional beam-splitting allows closed-loop focus feedback to stabilise the focal plane. The features of this new system, its mechanical and optical performance and its control system architecture are presented.

Paper Details

Date Published: 10 July 2018
PDF: 20 pages
Proc. SPIE 10706, Advances in Optical and Mechanical Technologies for Telescopes and Instrumentation III, 1070668 (10 July 2018); doi: 10.1117/12.2313120
Show Author Affiliations
Janus D. Brink, South African Astronomical Observatory (South Africa)
Southern African Large Telescope (South Africa)
Ockert J. Strydom, South African Astronomical Observatory (South Africa)
Southern African Large Telescope (South Africa)
Stephen N. Hulme, South African Astronomical Observatory (South Africa)
Southern African Large Telescope (South Africa)
Anthony R. Koeslag, South African Astronomical Observatory (South Africa)
Southern African Large Telescope (South Africa)
Deneys S. Maartens, South African Astronomical Observatory (South Africa)
Southern African Large Telescope (South Africa)
Keith R. J. Browne, South African Astronomical Observatory (South Africa)
Southern African Large Telescope (South Africa)
Eben P. Wiid, South African Astronomical Observatory (South Africa)
Southern African Large Telescope (South Africa)


Published in SPIE Proceedings Vol. 10706:
Advances in Optical and Mechanical Technologies for Telescopes and Instrumentation III
Ramón Navarro; Roland Geyl, Editor(s)

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