Presentation + Paper
6 July 2018 Material selection for far Infrared telescope mirrors
Author Affiliations +
Abstract
Large visible telescopes present challenging requirements for manufactured surface figure and stability. By comparison, far infrared (IR) telescopes relax many of these requirements by ~100x. These relaxed requirements may translate into reduced cost, schedule, mass, and system complexity. This paper explores how different mirror substrate materials might take advantage of these requirements while operating in a cryogenic environment. Primary mirror materials are evaluated for an Origins Space Telescope (OST) concept, using a 9.1 m segmented aperture in a 30 μm diffraction limited system.
Conference Presentation
© (2018) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Matthew East, J. Scott Knight, Lynn Allen, Ted Mooney, and Keith Havey "Material selection for far Infrared telescope mirrors", Proc. SPIE 10698, Space Telescopes and Instrumentation 2018: Optical, Infrared, and Millimeter Wave, 106981N (6 July 2018); https://doi.org/10.1117/12.2314310
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CITATIONS
Cited by 1 scholarly publication.
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KEYWORDS
Mirrors

Beryllium

Cryogenics

Space telescopes

Telescopes

Silicon carbide

James Webb Space Telescope

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