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Proceedings Paper

Cryostat design and construction at the IRTF
Author(s): Douglas W. Toomey; Werner E. Stahlberger; Darryl Y. Watanabe
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Paper Abstract

Over the past 6 years the instrumentation team at the NASA IR Telescope Facility (IRTF) has designed and built 3 major facility instruments, two cameras and a spectrometer, for use by the IR astronomical community. We will report on many new techniques for cryostat construction that have been developed that deviate from traditional practices. These include aluminum electron beam welded vacuum and cryogenic enclosures, rectangular cryostat formats, use of closed cycle coolers and their performance, use of all aluminum structures, optimization of cryogenic performance without super insulation, activated charcoal getters, and optomechanical mounting. Cryostat performance data and methods for estimating cryostat performance will also be included.

Paper Details

Date Published: 1 June 1994
PDF: 18 pages
Proc. SPIE 2198, Instrumentation in Astronomy VIII, (1 June 1994); doi: 10.1117/12.176773
Show Author Affiliations
Douglas W. Toomey, Univ. of Hawaii Institute for Astronomy (United States)
Werner E. Stahlberger, Univ. of Hawaii Institute for Astronomy (United States)
Darryl Y. Watanabe, Univ. of Hawaii Institute for Astronomy (United States)

Published in SPIE Proceedings Vol. 2198:
Instrumentation in Astronomy VIII
David L. Crawford; Eric R. Craine, Editor(s)

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