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High-resolution optical modeling of the Thirty Meter Telescope for systematic performance trades

Authors :
Byoung-Joon Seo
Ian J. M. Crossfield
Brent Ellerbroek
L. Gilles
Norbert Sigrist
Mitchell Troy
George Z. Angeli
John Angione
Carl Nissly
Angeli, George Z.
Cullum, Martin J.
Source :
SPIE Proceedings.
Publication Year :
2008
Publisher :
SPIE, 2008.

Abstract

We consider high-resolution optical modeling of the Thirty Meter Telescope for the purpose of error budget and instrumentation trades utilizing the Modeling and Analysis for Controlled Optical Systems tool. Using this ray-trace and diffraction model we have simulated the TMT optical errors related to multiple effects including segment alignment and phasing, segment surface figures, temperature, and gravity. We have then modeled the effects of each TMT optical error in terms of the Point Source Sensitivity (a multiplicative image plane metric) for a seeing limited case and an adaptive optics corrected case (for the NFIRAOS). This modeling provides the information necessary to rapidly conduct design trades with respect to the planned telescope instrumentation and to optimize the telescope error budget.

Details

ISSN :
0277786X
Database :
OpenAIRE
Journal :
SPIE Proceedings
Accession number :
edsair.doi.dedup.....bdfe15713b6b32ff93de6bd694ee4060
Full Text :
https://doi.org/10.1117/12.788596