SIRTF telescope test facility

Thomas S. Luchik; Ulf E. Israelsson; Robert G. Chave; Alfred Edward Nash III; James Hardy

doi:10.1117/12.221384

29 September 1995 SIRTF telescope test facility

Thomas S. Luchik, Ulf E. Israelsson, Robert G. Chave, Alfred Edward Nash III, James Hardy

Proceedings Volume 2553, Infrared Spaceborne Remote Sensing III; (1995) https://doi.org/10.1117/12.221384
Event: SPIE's 1995 International Symposium on Optical Science, Engineering, and Instrumentation, 1995, San Diego, CA, United States

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.

Citation Download Citation

Thomas S. Luchik, Ulf E. Israelsson, Robert G. Chave, Alfred Edward Nash III, and James Hardy "SIRTF telescope test facility", Proc. SPIE 2553, Infrared Spaceborne Remote Sensing III, (29 September 1995); https://doi.org/10.1117/12.221384

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