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Proceedings Paper

The Advanced Technology Solar Telescope coude lab thermal environment
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Paper Abstract

The ATST scientific instruments are located on benches installed on a large diameter rotating coud lab floor. The light path from the telescope to the instruments is greater than 38 meters and passes from external ambient conditions to the 'shirt-sleeve' environment of the coudé lab. In order to minimize any contribution to local seeing or wavefront distortion, two strategies are implemented. First, an air curtain is installed where the beam passes from ambient conditions to the lab space and second, the coudé lab environmental conditions are tightly controlled. This paper presents the design parameters of the environmental conditions, the basis of each design parameter, an overview of the equipment and components of the system planned to control those conditions, and the thermal and computational fluid dynamic analyses that have been performed in support of the system as designed.

Paper Details

Date Published: 6 August 2010
PDF: 12 pages
Proc. SPIE 7733, Ground-based and Airborne Telescopes III, 77333U (6 August 2010); doi: 10.1117/12.856012
Show Author Affiliations
LeEllen Phelps, National Solar Observatory (United States)
Thomas Rimmele, National Solar Observatory/Sacramento Peak (United States)
Robert P. Hubbard, National Solar Observatory (United States)
David Elmore, National Solar Observatory/Sacramento Peak (United States)

Published in SPIE Proceedings Vol. 7733:
Ground-based and Airborne Telescopes III
Larry M. Stepp; Roberto Gilmozzi; Helen J. Hall, Editor(s)

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