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Proceedings Paper

Large format filter changer mechanism for the dark energy survey
Author(s): G. Tarlé; B. Bigelow; D. Boprie; C. Cooper; E. Dede; W. Lorenzon; B. Nord; M. Schubnell; C. Weaverdyck
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Paper Abstract

The Dark Energy Survey is a Stage III Dark Energy Experiment that will obtain cosmological parameters by combining four observational techniques; Galaxy Clusters, Weak Lensing, Type Ia Supernovae and Baryon Acoustic Oscillations. The observations will be performed with a new wide field camera (DECam) that will be placed on the Blanco 4 m telescope at CTIO. Here we describe the large format (600 mm clear aperture) Filter Changer Mechanism (FCM) for the Dark Energy Survey Camera (DECam). The FCM, based on the Pan-STARRS design, is the largest ever constructed. Fabrication of the filter changer has been completed and it has been tested under realistic conditions.

Paper Details

Date Published: 22 July 2010
PDF: 11 pages
Proc. SPIE 7739, Modern Technologies in Space- and Ground-based Telescopes and Instrumentation, 77393L (22 July 2010); doi: 10.1117/12.857426
Show Author Affiliations
G. Tarlé, Univ. of Michigan (United States)
B. Bigelow, Univ. of Michigan (United States)
D. Boprie, Univ. of Michigan (United States)
C. Cooper, Univ. of Michigan (United States)
E. Dede, Univ. of Michigan (United States)
W. Lorenzon, Univ. of Michigan (United States)
B. Nord, Univ. of Michigan (United States)
M. Schubnell, Univ. of Michigan (United States)
C. Weaverdyck, Univ. of Michigan (United States)

Published in SPIE Proceedings Vol. 7739:
Modern Technologies in Space- and Ground-based Telescopes and Instrumentation
Eli Atad-Ettedgui; Dietrich Lemke, Editor(s)

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