A conceptual design for the Thirty Meter Telescope alignment and phasing system

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

doi:10.1117/12.788560

17 July 2008 A conceptual design for the Thirty Meter Telescope alignment and phasing system

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

Author Affiliations +

Proceedings Volume 7012, Ground-based and Airborne Telescopes II; 70120Y (2008) https://doi.org/10.1117/12.788560
Event: SPIE Astronomical Telescopes + Instrumentation, 2008, Marseille, France

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.

Citation Download Citation

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, and 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); https://doi.org/10.1117/12.788560

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