Mechanisms for large IR/O/UV space telescope thermal efficiency

Kevin Weed; Joseph Footdale; Erika Bannon; John Harvey; Laura Coyle

doi:10.1117/12.2629468

27 August 2022 Mechanisms for large IR/O/UV space telescope thermal efficiency

Kevin Weed, Joseph Footdale, Erika Bannon, John Harvey, Laura Coyle

Proceedings Volume 12180, Space Telescopes and Instrumentation 2022: Optical, Infrared, and Millimeter Wave; 121802I (2022) https://doi.org/10.1117/12.2629468
Event: SPIE Astronomical Telescopes + Instrumentation, 2022, Montréal, Québec, Canada

Abstract

Some concepts for a future large IR/O/UV space telescope include a James Webb Space Telescope (Webb) style sunshade for thermal stability. This will bias the telescope cold and complicate one key advantage that a 6m high-contrast imaging telescope could have: operating and testing at room temperature. Early concepts of LUVOIR-B, a segmented, off-axis 8-meter aperture concept developed the Large Mission Concept Study Teams, predict more than 5kW of heat would be needed to bring the telescope to operating temperature. These room-temperature telescopes invite configurations that could take more advantage of solar heating. This paper explores architecture options and identifies some technologies, their maturation requirements, and risks.

Conference Presentation

Citation Download Citation

Kevin Weed, Joseph Footdale, Erika Bannon, John Harvey, and Laura Coyle "Mechanisms for large IR/O/UV space telescope thermal efficiency", Proc. SPIE 12180, Space Telescopes and Instrumentation 2022: Optical, Infrared, and Millimeter Wave, 121802I (27 August 2022); https://doi.org/10.1117/12.2629468

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