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Proceedings Paper

Apodized square aperture plus occulter concept for TPF
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Paper Abstract

The standard approach to achieving TPF-level starlight suppression has been to couple a few techniques together. Deployment of a low- or medium-performance external occulter as the first stage of starlight suppression reduces manufacturing challenges, mitigates under-performance risks, lowers development costs, and hastens launch date for TPF. This paper describes the important aspects of a conceptual 4-metre apodized square aperture telescope system utilizing a low-performance external occulter. Adding an external occulter to such a standard TPF design provides a benefit that no other technique offers: scattered and diffracted on-axis starlight is suppressed by orders of magnitude before reaching the telescope. This translates directly into relaxed requirements on the remainder of the optical system.

Paper Details

Date Published: 12 October 2004
PDF: 11 pages
Proc. SPIE 5487, Optical, Infrared, and Millimeter Space Telescopes, (12 October 2004); doi: 10.1117/12.553029
Show Author Affiliations
Ian J. E. Jordan, Computer Sciences Corp. (United States)
Space Telescope Science Institute (United States)
Alfred B. Schultz, Computer Sciences Corp. (United States)
Space Telescope Science Institute (United States)
Richard G. Lyon, NASA Goddard Space Flight Ctr. (United States)
Helen M. Hart, Computer Sciences Corp. (United States)
Johns Hopkins Univ. (United States)
Frederick Bruhweiler, Institute for Astrophysics and Computational Sciences (United States)
Dorothy A. Fraquelli, Computer Sciences Corp. (United States)
Space Telescope Science Institute (United States)
Kenneth G. Carpenter, NASA Goddard Space Flight Ctr. (United States)
Mark Kochte, Computer Sciences Corp. (United States)
Space Telescope Science Institute (United States)
Jan M. Hollis, NASA Goddard Space Flight Ctr. (United States)


Published in SPIE Proceedings Vol. 5487:
Optical, Infrared, and Millimeter Space Telescopes
John C. Mather, Editor(s)

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