Performance predictions for spaceborne, long-lifetime helium dewars containing large-aperture telescopes

Richard A. Hopkins; Stephen J. Nieczkoski; Stephen M. Volz

doi:10.1117/12.23050

1 November 1990 Performance predictions for spaceborne, long-lifetime helium dewars containing large-aperture telescopes

Richard A. Hopkins, Stephen J. Nieczkoski, Stephen M. Volz

Author Affiliations +

Proceedings Volume 1340, Cryogenic Optical Systems and Instruments IV; (1990) https://doi.org/10.1117/12.23050
Event: 34th Annual International Technical Symposium on Optical and Optoelectronic Applied Science and Engineering, 1990, San Diego, CA, United States

Abstract

The evolution of design approaches for high-performance superfluid helium dewars containing large-aperture telescopes are discussed. Particular attention is given to thermal-math modeling for the IRAS and the Cosmic Background Explorer (COBE) dewars. Correlation of the recent COBE flight data with the dewar thermal-math model is presented, and apparent predictive deficiencies of the model are discussed.

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Richard A. Hopkins, Stephen J. Nieczkoski, and Stephen M. Volz "Performance predictions for spaceborne, long-lifetime helium dewars containing large-aperture telescopes", Proc. SPIE 1340, Cryogenic Optical Systems and Instruments IV, (1 November 1990); https://doi.org/10.1117/12.23050

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