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27 May 2022 Ongoing activities in high-availability cryocoolers for infrared dewars
Roel Arts, Daniel Willems, Garmt de Jonge, Tonny Benschop
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Proceedings Volume 12107, Infrared Technology and Applications XLVIII; 121070L (2022) https://doi.org/10.1117/12.2618477
Event: SPIE Defense + Commercial Sensing, 2022, Orlando, Florida, United States
Abstract
The development of mechanical cryocoolers over the past two decades has now reached a point where cryocooler life time no longer needs to limit system reliability or availability. However, to avoid peripheral failure mechanisms becoming dominant on the IDCA level, careful consideration needs to be given to integration aspects. In this presentation, ongoing activities at Thales Cryogenics to make previously field-proven high-availability technology suitable for infrared detection applications will be discussed. One technology presented will be a SADA-compatible flexure-bearing Stirling cooler with an upgraded bearing design based on a previous slip-on design for HTS telecommunications base stations [1]. Another design that will be discussed is a similarly-sized pulse-tube cooler and its usability for infrared sensor cooling. Both technologies will be compared and present and future work will be highlighted.
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Roel Arts, Daniel Willems, Garmt de Jonge, and Tonny Benschop "Ongoing activities in high-availability cryocoolers for infrared dewars", Proc. SPIE 12107, Infrared Technology and Applications XLVIII, 121070L (27 May 2022); https://doi.org/10.1117/12.2618477
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KEYWORDS
Cryocoolers
Infrared radiation
Reliability
Cryogenics
Infrared detection
Infrared sensors
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