24 September 2012 Assembly, alignment, and testing of the DECam wide field corrector optics
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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.
© (2012) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Peter Doel, Peter Doel, David Brooks, David Brooks, Michelle L. Antonik, Michelle L. Antonik, Brenna L. Flaugher, Brenna L. Flaugher, Andrew Stefanik, Andrew Stefanik, Stephen M. Kent, Stephen M. Kent, Gaston Gutierrez, Gaston Gutierrez, Herman P. Cease, Herman P. Cease, Timothy M. Abbott, Timothy M. Abbott, Alistair R. Walker, Alistair R. Walker, Darren L. DePoy, Darren L. DePoy, Rebecca A. Bernstein, Rebecca A. Bernstein, Sue Worswick, Sue Worswick, } "Assembly, alignment, and testing of the DECam wide field corrector optics", Proc. SPIE 8446, Ground-based and Airborne Instrumentation for Astronomy IV, 84466F (24 September 2012); doi: 10.1117/12.926590; https://doi.org/10.1117/12.926590

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