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- W2023256169 abstract "The optical system test for the James Webb Space Telescope (JWST) requires one of the largest available vacuum chambers operating at cryogenic temperatures (<45K). The test includes verification of a segmented 6.6m-diameter primary mirror with a radius of curvature of 16m. In addition, the chamber must accommodate flight instruments and test equipment above and below the telescope. ITT, under contract for this test, teamed with Northrop Grumman Space Technology (NGST), the prime contractor, and the NASA Goddard Space Flight Center (GSFC) to optimize the test configuration. The new configuration minimizes operation within the chamber, leverages recent technologies in interferometry to minimize ground-based environmental influences, and utilizes the chamber itself as the test bench to reduce the cryogenic thermal mass. The result enables an effective system-level test in Chamber A at the NASA Johnson Space Center (JSC)." @default.
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- W2023256169 date "2006-06-14" @default.
- W2023256169 modified "2023-09-23" @default.
- W2023256169 title "Optimizing the cryogenic test configuration for the James Webb Space Telescope" @default.
- W2023256169 doi "https://doi.org/10.1117/12.672994" @default.
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