29 September 1995 SIRTF telescope test facility
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Abstract
An optical test Dewar has been constructed with the unique capability to test mirrors of diameter <EQ 1 m, f <EQ 6, at temperatures from 300 to 5 K with a ZYGO Mark IV interferometer. The facility possesses extensive thermometry throughout for characterization of the test chamber thermal environment and Dewar performance. Optical accesss is controlled with cryogenically cooled shutters. The entire Dewar is vibration isolated by 40 dB where the fundamental resonances of the Dewar structure are highest. The facility has been brought on line for its first user, the Infrared Telescope Technology Testbed for the Space Infrared Telescope Facility at JPL. The design requirements for this facility and the resultant design and implementation experiences and challenges will be presented.
© (1995) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Thomas S. Luchik, Thomas S. Luchik, Ulf E. Israelsson, Ulf E. Israelsson, Robert G. Chave, Robert G. Chave, Alfred Edward Nash, Alfred Edward Nash, James Hardy, James Hardy, } "SIRTF telescope test facility", Proc. SPIE 2553, Infrared Spaceborne Remote Sensing III, (29 September 1995); doi: 10.1117/12.221384; https://doi.org/10.1117/12.221384
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