17 July 2008 A conceptual design for the Thirty Meter Telescope alignment and phasing system
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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.
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Mitchell Troy, Mitchell Troy, Gary Chanan, Gary Chanan, Scott Michaels, Scott Michaels, Randy Bartos, Randy Bartos, Graham Bothwell, Graham Bothwell, Amir Give'on, Amir Give'on, Randy Hein, Randy Hein, Max Radin, Max Radin, Jenny Roberts, Jenny Roberts, J. Michael Rodgers, J. Michael Rodgers, Lawrence M. Scherr, Lawrence M. Scherr, Byoung-Joon Seo, Byoung-Joon Seo, David Zimmerman, David Zimmerman, } "A conceptual design for the Thirty Meter Telescope alignment and phasing system", Proc. SPIE 7012, Ground-based and Airborne Telescopes II, 70120Y (17 July 2008); doi: 10.1117/12.788560; https://doi.org/10.1117/12.788560
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