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Proceedings Paper

A conceptual design for the Thirty Meter Telescope alignment and phasing system
Author(s): Mitchell Troy; Gary Chanan; Scott Michaels; Randy Bartos; Graham Bothwell; Amir Give'on; Randy Hein; Max Radin; Jenny Roberts; J. Michael Rodgers; Lawrence M. Scherr; Byoung-Joon Seo; David Zimmerman
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Paper Abstract

The primary, secondary and tertiary mirrors of the Thirty Meter Telescope (TMT), taken together, have approximately 12,000 degrees of freedom in optical alignment. The Alignment and Phasing System (APS) will use starlight and a variety of Shack-Hartmann based measurement techniques to position the segment pistons, tips, and tilts, segment figures, secondary rigid body motion, secondary figure and the tertiary figure to correctly align the TMT. We present a conceptual design of the APS including the requirements, alignment modes, predicted performance, software architecture, and an optical design.

Paper Details

Date Published: 17 July 2008
PDF: 12 pages
Proc. SPIE 7012, Ground-based and Airborne Telescopes II, 70120Y (17 July 2008); doi: 10.1117/12.788560
Show Author Affiliations
Mitchell Troy, Jet Propulsion Lab. (United States)
Gary Chanan, Univ. of California, Irvine (United States)
Scott Michaels, Univ. of California, Irvine (United States)
Randy Bartos, Jet Propulsion Lab. (United States)
Graham Bothwell, Jet Propulsion Lab. (United States)
Amir Give'on, Jet Propulsion Lab. (United States)
Randy Hein, Jet Propulsion Lab. (United States)
Max Radin, Univ. of California, Irvine (United States)
Jenny Roberts, Jet Propulsion Lab. (United States)
J. Michael Rodgers, Optical Research Associates (United States)
Lawrence M. Scherr, Jet Propulsion Lab. (United States)
Byoung-Joon Seo, Jet Propulsion Lab. (United States)
David Zimmerman, Univ. of California, Irvine (United States)

Published in SPIE Proceedings Vol. 7012:
Ground-based and Airborne Telescopes II
Larry M. Stepp; Roberto Gilmozzi, Editor(s)

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