29 July 2016 Performance of a cryogenic test facility for 4 K interferometer delay line investigations
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Abstract
The next generation of space-borne instruments for far infrared astronomical spectroscopy will utilize large diameter, cryogenically cooled telescopes in order to achieve unprecedented sensitivities. Low background, ground-based cryogenic facilities are required for the cryogenic testing of materials, components and subsystems. The University of Lethbridge Test Facility Cryostat (TFC) is a large volume, closed cycle, 4 K cryogenic facility, developed for this purpose. This paper discusses the design and performance of the facility and associated metrology instrumentation, both internal and external to the TFC. Additionally, an apparatus for measuring the thermal and mechanical properties of carbon-fiber-reinforced polymers is presented.
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Ian Veenendaal, Ian Veenendaal, David Naylor, David Naylor, Brad Gom, Brad Gom, Sudhakar Gunuganti, Sudhakar Gunuganti, Calvin Winter, Calvin Winter, Martyn Jones, Martyn Jones, David Walker, David Walker, } "Performance of a cryogenic test facility for 4 K interferometer delay line investigations", Proc. SPIE 9904, Space Telescopes and Instrumentation 2016: Optical, Infrared, and Millimeter Wave, 99045E (29 July 2016); doi: 10.1117/12.2233609; https://doi.org/10.1117/12.2233609
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