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Proceedings Paper

Calibration and operation of the active surface of the Large Millimeter Telescope
Author(s): F. P. Schloerb; D. Sanchez; G. Narayanan; N. Erickson; K. Souccar; G. Wilson; D. Gale; David H. Hughes; D. Smith
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Paper Abstract

The Large Millimeter Telescope relies on an active primary surface to achieve its specified surface accuracy. The active primary has two functions: (1) it provides a means to correct the surface for gravitational deformations with changing elevation; and (2) it provides a capability to improve the shape of the surface in real time due to transient effects of thermal gradients within the structure. At LMT, our development work has addressed both problems and in this paper we describe the derivation of the gravity deformation model and the schemes developed to measure and improve the antenna surface during regular scientific observations.

Paper Details

Date Published: 8 August 2016
PDF: 7 pages
Proc. SPIE 9906, Ground-based and Airborne Telescopes VI, 99066C (8 August 2016); doi: 10.1117/12.2232821
Show Author Affiliations
F. P. Schloerb, Univ. of Massachusetts Amherst (United States)
D. Sanchez, Instituto Nacional de Astrofísica, Óptica y Electrónica (Mexico)
G. Narayanan, Univ. of Massachusetts Amherst (United States)
N. Erickson, Univ. of Massachusetts Amherst (United States)
K. Souccar, Univ. of Massachusetts Amherst (United States)
G. Wilson, Univ. of Massachusetts Amherst (United States)
D. Gale, Instituto Nacional de Astrofísica, Óptica y Electrónica (Mexico)
David H. Hughes, Instituto Nacional de Astrofísica, Óptica y Electrónica (Mexico)
D. Smith, Merlab PC (United States)


Published in SPIE Proceedings Vol. 9906:
Ground-based and Airborne Telescopes VI
Helen J. Hall; Roberto Gilmozzi; Heather K. Marshall, Editor(s)

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