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Proceedings Paper

USAF space sensing cryogenic considerations
Author(s): Erin N. Pettyjohn
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Paper Abstract

Infrared (IR) space sensing missions of the future depend on low mass, highly capable imaging technologies. Limitations in visible imaging due to the earth's shadow drive the use of IR surveillance methods for a wide variety of applications. Utilization of IR sensors greatly improves mission capabilities including target behavioral discrimination. Background IR emissions and electronic noise that is inherently present in Focal Plane Arrays (FPAs) and surveillance optics bench designs obviates their use unless they are cooled to cryogenic temperatures. The interaction between cryogenic refrigeration component performance and the IR sensor optics and FPA can be seen as not only mission enabling but also as mission performance enhancing when the refrigeration system is considered as part of an overall optimization problem.

Paper Details

Date Published: 4 February 2011
PDF: 10 pages
Proc. SPIE 7951, Laser Refrigeration of Solids IV, 795102 (4 February 2011); doi: 10.1117/12.878962
Show Author Affiliations
Erin N. Pettyjohn, Air Force Research Lab. (United States)

Published in SPIE Proceedings Vol. 7951:
Laser Refrigeration of Solids IV
Richard Epstein; Mansoor Sheik-Bahae, Editor(s)

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