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Proceedings Paper

The DESI wide field corrector optics
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Paper Abstract

The Dark Energy Spectroscopic instrument (DESI) is a 5000 fiber multi-object spectrometer system under development for installation on the National Optical Astronomy Observatory (NOAO) Kitt Peak 4m telescope (the Mayall telescope). DESI is designed to perform a 14,000° (square) galaxy and Quasi-Stellar Object (QSO) redshift survey to improve estimates of the dark energy equation of state. The survey design imposes numerous constraints on a prime focus corrector design, including field of view, geometrical blur, stability, fiber injection efficiency, zenith angle, mass and cost. The DESI baseline wide-field optical design described herein provides a 3.2° diameter field of view with six 0.8- 1.14m diameter lenses and an integral atmospheric dispersion compensator.

Paper Details

Date Published: 6 August 2014
PDF: 7 pages
Proc. SPIE 9147, Ground-based and Airborne Instrumentation for Astronomy V, 91476R (6 August 2014); doi: 10.1117/12.2057172
Show Author Affiliations
Peter Doel, Univ. College London (United Kingdom)
Michael J. Sholl, Lawrence Berkeley National Lab. (United States)
Ming Liang, National Optical Astronomy Observatory (United States)
David Brooks, Univ. College London (United Kingdom)
Brenna Flaugher, Fermi National Accelerator Lab. (United States)
Gaston Gutierrez, Fermi National Accelerator Lab. (United States)
Stephen Kent, Fermi National Accelerator Lab. (United States)
Michael Lampton, Lawrence Berkeley National Lab. (United States)
Timothy Miller, Lawrence Berkeley National Lab. (United States)
David Sprayberry, National Optical Astronomy Observatory (United States)


Published in SPIE Proceedings Vol. 9147:
Ground-based and Airborne Instrumentation for Astronomy V
Suzanne K. Ramsay; Ian S. McLean; Hideki Takami, Editor(s)

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