Share Email Print

Proceedings Paper

Image improvement of CFHT's primary mirror: primary mirror cooling
Author(s): Edward G. Stokes; Rohendra Dulip Atapattu; Rod Hendrix
Format Member Price Non-Member Price
PDF $14.40 $18.00
cover GOOD NEWS! Your organization subscribes to the SPIE Digital Library. You may be able to download this paper for free. Check Access

Paper Abstract

The Canada-France-Hawaii-Telescope is in the process of upgrading the primary mirror cell for cooling of the mirror during non-operating hours. This paper addresses the goals of CFHT in insulating and actively cooling the primary mirror cell environment. The main design criteria is to have a system that would introduce chilled dry air to a sealed and insulated primary mirror cell during daylight hours. This could remove the deleterious effects of having the primary mirror warmer than the ambient air. A system is planned to protect the mirror in case of sudden moisture exposure and also decrease the frequency of recoating due to contamination.

Paper Details

Date Published: 8 June 1995
PDF: 6 pages
Proc. SPIE 2479, Telescope Control Systems, (8 June 1995); doi: 10.1117/12.211457
Show Author Affiliations
Edward G. Stokes, Canada-France-Hawaii Telescope (United States)
Rohendra Dulip Atapattu, Canada-France-Hawaii Telescope (United States)
Rod Hendrix, Canada-France-Hawaii Telescope (United States)

Published in SPIE Proceedings Vol. 2479:
Telescope Control Systems
Patrick T. Wallace, Editor(s)

© SPIE. Terms of Use
Back to Top