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Proceedings Paper

Design and implementation of an improved chilled water glycol system for GeMS: CANOPUS thermal enclosures
Author(s): Gaston Gausachs; Matthieu Bec; Ramon Galvez; Chas Cavedoni; Vicente Vergara; Herman Diaz; German Fernandez
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Paper Abstract

CANOPUS is the facility instrument for the Gemini Multi Conjugate Adaptive Optics System (GeMS) wherein all the adaptive optics mechanisms and associated electronic are tightly packed. At an early stage in the pre-commissioning phase Gemini undertook the redesign and implementation of its chilled Ethylene Glycol Water (EGW) cooling system to remove the heat generated by the electronic hardware. The electronic boards associated with the Deformable Mirrors (DM) represent the highest density heat yielding components in CANOPUS and they are also quite sensitive to overheating. The limited size of the two electronic thermal enclosures (TE) requires the use of highly efficient heat exchangers (HX) coupled with powerful yet compact DC fans. A systematic approach to comply with all the various design requirements brought about a thorough and robust solution that, in addition to the core elements (HXs and fan), makes use of features such as high performance vacuum insulated panels, vibration mitigation elements and several environment sensors. This paper describes the design and implementation of the solution in the lab prior to delivering CANOPUS for commissioning.

Paper Details

Date Published: 20 July 2010
PDF: 9 pages
Proc. SPIE 7735, Ground-based and Airborne Instrumentation for Astronomy III, 77356D (20 July 2010); doi: 10.1117/12.857338
Show Author Affiliations
Gaston Gausachs, Gemini Observatory (Chile)
Matthieu Bec, Gemini Observatory (Chile)
Ramon Galvez, Gemini Observatory (Chile)
Chas Cavedoni, Gemini Observatory (United States)
Vicente Vergara, Gemini Observatory (Chile)
Herman Diaz, Gemini Observatory (Chile)
German Fernandez, Complejo Astronomico El Leoncito (Argentina)

Published in SPIE Proceedings Vol. 7735:
Ground-based and Airborne Instrumentation for Astronomy III
Ian S. McLean; Suzanne K. Ramsay; Hideki Takami, Editor(s)

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