17 September 2009 Wide-field Infrared Survey Explorer cryogenic support system status and thermal test results
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The Wide-Field Infrared Survey Explorer (WISE) is a MIDEX mission that is being developed by the Jet Propulsion Laboratory (JPL) to address several of NASA's Astronomical Search of Origins (ASO) objectives. Space Dynamics Laboratory/ Utah State University is providing the cryogenically cooled infrared instrument. Cooling for the instrument optics and focal planes is provided by a dual-stage solid hydrogen cryostat. Driving requirements for the cryogenic subsystem are: a seven-month lifetime and operating temperatures of less than 17 K for the optics, 32 K for the HgCdTe focal planes, and 7.8 K for the Si:As focal planes. This paper provides an overview of the dual-stage hydrogen cryogenic subsystem status and discusses the results of the thermal performance testing.
© (2009) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Scott Schick, Brett Lloyd, "Wide-field Infrared Survey Explorer cryogenic support system status and thermal test results", Proc. SPIE 7439, Astronomical and Space Optical Systems, 743917 (17 September 2009); doi: 10.1117/12.825743; https://doi.org/10.1117/12.825743


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