Preliminary design for an enclosure for the European Extremely Large Telescope

Gaizka Murga; Armando Bilbao; Alberto Vizcargüenaga; Alberto Fernández; Amaia Zarraoa; Michael Schneermann

doi:10.1117/12.788939

10 July 2008 Preliminary design for an enclosure for the European Extremely Large Telescope

Gaizka Murga, Armando Bilbao, Alberto Vizcargüenaga, Alberto Fernández, Amaia Zarraoa, Michael Schneermann

Proceedings Volume 7012, Ground-based and Airborne Telescopes II; 70121C (2008) https://doi.org/10.1117/12.788939
Event: SPIE Astronomical Telescopes + Instrumentation, 2008, Marseille, France

Abstract

The baseline design for the enclosure of the E-ELT is based on a spherical dome concept. This dome is tightly fitted to the TRV so that its surface, the enclosed volume and consequently the system overall cost are minimized. The large slit that is required for observation-as compared to the enclosure volume-, much larger than in smaller telescopes, poses a big challenge to the design. This affects the slit covering system design, for which dynamic issues must be carefully considered in order to prevent operation problems, as well as the dome structure and other mechanisms such as the windscreen and the crane, that have to cover a large 45m span. This paper presents a design that solves all these difficulties in both a cost-effective and reliable way. The design work presented in this paper has been performed under contract with the European Southern Observatory.

Citation Download Citation

Gaizka Murga, Armando Bilbao, Alberto Vizcargüenaga, Alberto Fernández, Amaia Zarraoa, and Michael Schneermann "Preliminary design for an enclosure for the European Extremely Large Telescope", Proc. SPIE 7012, Ground-based and Airborne Telescopes II, 70121C (10 July 2008); https://doi.org/10.1117/12.788939

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available