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Proceedings Paper

Preliminary optical design for a 2.2 degree diameter prime focus corrector for the Blanco 4 meter telescope
Author(s): S. Kent; R. Bernstein; T. Abbott; B. Bigelow; D. Brooks; P. Doel; B. Flaugher; M. Gladders; A. Walker; S. Worswick
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Paper Abstract

We describe a five element corrector for the prime focus of the 4 meter Blanco telescope at the Cerro Tololo Inter-American Observatory (CTIO) in Chile that will be used in conjunction with a new mosaic CCD camera as part of the proposed Dark Energy Survey (DES). The corrector is designed to provide a flat focal plane and good images in the SDSS g, r, i, and z filters. We describe the performance in conjunction with the scientific requirements of the DES, particularly with regard to ghosting and weak-lensing point spread function (PSF) calibration.

Paper Details

Date Published: 30 June 2006
PDF: 10 pages
Proc. SPIE 6269, Ground-based and Airborne Instrumentation for Astronomy, 626937 (30 June 2006); doi: 10.1117/12.672097
Show Author Affiliations
S. Kent, Fermilab (United States)
R. Bernstein, Univ. of Michigan (United States)
T. Abbott, CTIO/AURA (Chile)
B. Bigelow, Univ. of Michigan (United States)
D. Brooks, Univ. College London (United Kingdom)
P. Doel, Univ. College London (United Kingdom)
B. Flaugher, Fermilab (United States)
M. Gladders, Carnegie Observatories (United States)
A. Walker, CTIO/AURA (Chile)
S. Worswick, 1 Betony (United Kingdom)

Published in SPIE Proceedings Vol. 6269:
Ground-based and Airborne Instrumentation for Astronomy
Ian S. McLean; Masanori Iye, Editor(s)

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