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Proceedings Paper

Configuration and structural characteristics of the Gran Telescopio Canarias (GTC) dome
Author(s): Jose Maria Sarasola; Manel Alcantud
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Paper Abstract

The GTC dome is a rotary, pre-raised, hemispherical structure with an external radius of 17528 mm. The dome design objectives pursued were as follows: (1) To reduce total weight to a minimum in order to diminish thermal inertia and the power required by dome and observation shutter drive mechanisms. (2) To obtain a rigid structure with high eigenfrequencies to reduce noise reaching the telescope. (3) To ensure good internal ventilation; to this end there are 16 ventilation doors and an air chamber inside the dome wall, and heat insulation on the inside surface of the wall.

Paper Details

Date Published: 2 August 2000
PDF: 6 pages
Proc. SPIE 4004, Telescope Structures, Enclosures, Controls, Assembly/Integration/Validation, and Commissioning, (2 August 2000); doi: 10.1117/12.393955
Show Author Affiliations
Jose Maria Sarasola, IberEspacio (Spain)
Manel Alcantud, IberEspacio (Spain)


Published in SPIE Proceedings Vol. 4004:
Telescope Structures, Enclosures, Controls, Assembly/Integration/Validation, and Commissioning
Thomas A. Sebring; Torben Andersen, Editor(s)

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