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Proceedings Paper

The pier and building of the European Solar Telescope (EST)
Author(s): F. C. M. Bettonvil; R. Codina; A. Gómez Merchán; R. H. Hammerschlag; J. J. M. Hartman; E. Hernández Suárez; A. P. L. Jägers; G. Murga Llano; J. W. Pelser; G. Sliepen
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Paper Abstract

EST (European Solar Telescope) is a 4-m class solar telescope, which is currently in the conceptual design phase. EST will be located in the Canary Islands and will aim at high spectral, spatial and temporal resolution observations in the photosphere and chromosphere, using a suite of instruments that can produce efficiently two-dimensional spectropolarimetric information of the thermal, dynamic and magnetic properties of the plasma over many scale heights. The pier is defined as the construction that supports the telescope and the enclosure. It needs a certain height to minimize daytime ground turbulence. At the bottom of the pier a large instrument lab is located, 16 m in diameter and 10 m high. To the pier is attached a service building that accommodates all auxiliary services, possibly together with a separate building. Solid concrete- and open framework piers are compared, in terms of stability, thermal properties and flow characteristics and building structures in terms of construction issues. FE and CFD analysis are used to give qualitative insight in the differences between the alternatives. The preferred alternative is a cone shaped pier surrounded by an open framework.

Paper Details

Date Published: 5 August 2010
PDF: 12 pages
Proc. SPIE 7733, Ground-based and Airborne Telescopes III, 773334 (5 August 2010); doi: 10.1117/12.857797
Show Author Affiliations
F. C. M. Bettonvil, Utrecht Univ. (Netherlands)
R. Codina, International Ctr. for Numerical Methods in Engineering (Spain)
A. Gómez Merchán, IDOM Ingeniería y Consultoría (Spain)
R. H. Hammerschlag, Utrecht Univ. (Netherlands)
J. J. M. Hartman, Bouwstudio Pelser Hartman b.v. (Netherlands)
E. Hernández Suárez, Instituto de Astrofísica de Canarias (Spain)
A. P. L. Jägers, Utrecht Univ. (Netherlands)
G. Murga Llano, IDOM Ingeniería y Consultoría (Spain)
J. W. Pelser, Bouwstudio Pelser Hartman b.v. (Netherlands)
G. Sliepen, Utrecht Univ. (Netherlands)

Published in SPIE Proceedings Vol. 7733:
Ground-based and Airborne Telescopes III
Larry M. Stepp; Roberto Gilmozzi; Helen J. Hall, Editor(s)

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