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Proceedings Paper

eXtreme multiplex spectrograph: a high-demanding mechanical design
Author(s): S. Becerril; K. Meisenheimer; C. M. Dubbeldam; R. Content; R. R. Rohloff; F. Prada; T. Shanks; R. Sharples
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Paper Abstract

XMS is a multi-channel wide-field spectrograph designed for the prime focus of the 3.5m Calar-Alto telescope. The instrument is composed by four quadrants, each of which contains a spectrograph channel. An innovative mechanical design -at concept/preliminary stage- has been implemented to: 1) Minimize the separation between the channels to achieve maximal filling factor; 2) Cope with the very constraining space and mass overall requirements; 3) Achieve very tight alignment tolerances; 4) Provide lens self-centering under large temperature excursions; 5) Provide masks including 4000 slits (edges thinner than 100μ). An overview of this very challenging mechanical design is here presented.

Paper Details

Date Published: 20 July 2010
PDF: 16 pages
Proc. SPIE 7735, Ground-based and Airborne Instrumentation for Astronomy III, 773556 (20 July 2010); doi: 10.1117/12.856681
Show Author Affiliations
S. Becerril, Instituto de Astrofísica de Andalucía, CSIC (Spain)
K. Meisenheimer, Max-Planck-Institut für Astronomie (Germany)
C. M. Dubbeldam, Durham Univ. (United Kingdom)
R. Content, Durham Univ. (United Kingdom)
R. R. Rohloff, Max-Planck-Institut für Astronomie (Germany)
F. Prada, Instituto de Astrofísica de Andalucía, CSIC (Spain)
T. Shanks, Durham Univ. (United Kingdom)
R. Sharples, Durham Univ. (United Kingdom)

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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