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Proceedings Paper

Performance predictions for spaceborne, long-lifetime helium dewars containing large-aperture telescopes
Author(s): Richard A. Hopkins; Stephen J. Nieczkoski; Stephen M. Volz
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Paper 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.

Paper Details

Date Published: 1 November 1990
PDF: 8 pages
Proc. SPIE 1340, Cryogenic Optical Systems and Instruments IV, (1 November 1990); doi: 10.1117/12.23050
Show Author Affiliations
Richard A. Hopkins, Ball Aerospace (United States)
Stephen J. Nieczkoski, Ball Aerospace (United States)
Stephen M. Volz, NASA/Goddard Space Flight Ctr. (United States)


Published in SPIE Proceedings Vol. 1340:
Cryogenic Optical Systems and Instruments IV
Ramsey K. Melugin; Gerald R. Pruitt, Editor(s)

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