Engineering trade studies for the Terrestrial Planet Finder Coronagraph primary mirror

David A. Content; Raymond G. Ohl; Terry Cafferty; Eri J. Cohen; Robert M. Egerman; Charles D. Engler; Louis G. Fantano; Peter Feher; Joseph J. Green; Timothy Y. Ho; Joseph M. Howard; Sarah Hunyadi; Sandra M. Irish; Cliffton E. Jackson; Andrew Kissil; Eug-Yun Kwack; Neil F. Martin; Anthony J. Martino; Jeff Pattison; Sharon A. S. Peabody; Andrew M. Smith; Ichung Weng

doi:10.1117/12.618687

30 August 2005 Engineering trade studies for the Terrestrial Planet Finder Coronagraph primary mirror

David A. Content, Raymond G. Ohl, Terry Cafferty, Eri J. Cohen, Robert M. Egerman, Charles D. Engler, Louis G. Fantano, Peter Feher, Joseph J. Green, Timothy Y. Ho, Joseph M. Howard, Sarah Hunyadi, Sandra M. Irish, Cliffton E. Jackson, Andrew Kissil, Eug-Yun Kwack, Neil F. Martin, Anthony J. Martino, Jeff Pattison, Sharon A. S. Peabody, Andrew M. Smith, Ichung Weng

Author Affiliations +

Proceedings Volume 5867, Optical Modeling and Performance Predictions II; 58670X (2005) https://doi.org/10.1117/12.618687
Event: Optics and Photonics 2005, 2005, San Diego, California, United States

Abstract

The Terrestrial Planet Finder Coronagraph (TPF-C) is conducting pre-formulation design and analysis studies based on a 8x3.5m elliptical aperture, light-weight primary mirror feeding an internally occulted (Lyot) coronagraph. The primary mirror has challenging static and dynamic performance requirements. We report on recent trade studies and concepts including open- and closed-back mirror blank designs and comparisons of thermal and mechanical performance; aperture shape alternatives to better match the coronagraph application with weight, packaging, and fabrication constraints; and mirror material trades.

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David A. Content, Raymond G. Ohl, Terry Cafferty, Eri J. Cohen, Robert M. Egerman, Charles D. Engler, Louis G. Fantano, Peter Feher, Joseph J. Green, Timothy Y. Ho, Joseph M. Howard, Sarah Hunyadi, Sandra M. Irish, Cliffton E. Jackson, Andrew Kissil, Eug-Yun Kwack, Neil F. Martin, Anthony J. Martino, Jeff Pattison, Sharon A. S. Peabody, Andrew M. Smith, and Ichung Weng "Engineering trade studies for the Terrestrial Planet Finder Coronagraph primary mirror", Proc. SPIE 5867, Optical Modeling and Performance Predictions II, 58670X (30 August 2005); https://doi.org/10.1117/12.618687

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