Cryostat design and construction at the IRTF

Douglas W. Toomey; Werner E. Stahlberger; Darryl Y. Watanabe

doi:10.1117/12.176773

1 June 1994 Cryostat design and construction at the IRTF

Douglas W. Toomey, Werner E. Stahlberger, Darryl Y. Watanabe

Proceedings Volume 2198, Instrumentation in Astronomy VIII; (1994) https://doi.org/10.1117/12.176773
Event: 1994 Symposium on Astronomical Telescopes and Instrumentation for the 21st Century, 1994, Kailua, Kona, HI, United States

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.

Citation Download Citation

Douglas W. Toomey, Werner E. Stahlberger, and Darryl Y. Watanabe "Cryostat design and construction at the IRTF", Proc. SPIE 2198, Instrumentation in Astronomy VIII, (1 June 1994); https://doi.org/10.1117/12.176773

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