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Proceedings Paper

Assembly, alignment, and testing of the DECam wide field corrector optics
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Paper Abstract

The DES project is a 5 year imaging survey of the southern sky using the 4m Blanco Telescope at the Cerro Tololo International Observatory in Chile. A new wide field camera with a 2.2 degree diameter field of view has been built to undertake this survey. The alignment of the large lenses for this camera poses a significant challenge as they have to be aligned to a tolerance of ±50 micrometers. This paper presents the assembly and alignment process of the full optical system along with the test results. Also included is the predicted imaging performance from the as-built system.

Paper Details

Date Published: 24 September 2012
PDF: 9 pages
Proc. SPIE 8446, Ground-based and Airborne Instrumentation for Astronomy IV, 84466F (24 September 2012); doi: 10.1117/12.926590
Show Author Affiliations
Peter Doel, Univ. College London (United Kingdom)
David Brooks, Univ. College London (United Kingdom)
Michelle L. Antonik, Univ. College London (United Kingdom)
Brenna L. Flaugher, Fermi National Accelerator Lab. (United States)
Andrew Stefanik, Fermi National Accelerator Lab. (United States)
Stephen M. Kent, Fermi National Accelerator Lab. (United States)
Gaston Gutierrez, Fermi National Accelerator Lab. (United States)
Herman P. Cease, Cerro Tololo Inter-American Observatory (Chile)
Timothy M. Abbott, Cerro Tololo Inter-American Observatory (Chile)
Alistair R. Walker, Cerro Tololo Inter-American Observatory (Chile)
Darren L. DePoy, Texas A&M Univ. (United States)
Rebecca A. Bernstein, UCO/Lick Observatory (United States)
Sue Worswick, Observatory Optics Ltd. (United Kingdom)

Published in SPIE Proceedings Vol. 8446:
Ground-based and Airborne Instrumentation for Astronomy IV
Ian S. McLean; Suzanne K. Ramsay; Hideki Takami, Editor(s)

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