The Advanced Technology Solar Telescope coude lab thermal environment

LeEllen Phelps; Thomas Rimmele; Robert P. Hubbard; David Elmore

doi:10.1117/12.856012

6 August 2010 The Advanced Technology Solar Telescope coude lab thermal environment

LeEllen Phelps, Thomas Rimmele, Robert P. Hubbard, David Elmore

Proceedings Volume 7733, Ground-based and Airborne Telescopes III; 77333U (2010) https://doi.org/10.1117/12.856012
Event: SPIE Astronomical Telescopes + Instrumentation, 2010, San Diego, California, United States

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.

Citation Download Citation

LeEllen Phelps, Thomas Rimmele, Robert P. Hubbard, and David Elmore "The Advanced Technology Solar Telescope coude lab thermal environment", Proc. SPIE 7733, Ground-based and Airborne Telescopes III, 77333U (6 August 2010); https://doi.org/10.1117/12.856012

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