Thermal architecture for a cryogenic super-pressure balloon payload: design and development of the Taurus flight cryostat

Simon Tartakovsky; Alexandre E. Adler; Jason E. Austermann; Steven J. Benton; Rick Bihary; Malcolm Durkin; Shannon M. Duff; Jeffrey P. Filippini; Aurelien A. Fraisse; Thomas J. L. J. Gascard; Sho M. Gibbs; Suren Gourapura; Jon E. Gudmundsson; John W. Hartley; Johannes Hubmayr; William C. Jones; Steven Li; Jared L. May; Johanna M. Nagy; Kate Okun; Ivan L. Padilla; L. Javier Romualdez; Michael R. Vissers

doi:10.1117/12.3015077

11 September 2024 Thermal architecture for a cryogenic super-pressure balloon payload: design and development of the Taurus flight cryostat

Simon Tartakovsky, Alexandre E. Adler, Jason E. Austermann, Steven J. Benton, Rick Bihary, Malcolm Durkin, Shannon M. Duff, Jeffrey P. Filippini, Aurelien A. Fraisse, Thomas J. L. J. Gascard, Sho M. Gibbs, Suren Gourapura, Jon E. Gudmundsson, John W. Hartley, Johannes Hubmayr, William C. Jones, Steven Li, Jared L. May, Johanna M. Nagy, Kate Okun, Ivan L. Padilla, L. Javier Romualdez, Michael R. Vissers

Author Affiliations +

Proceedings Volume 13094, Ground-based and Airborne Telescopes X; 130944B (2024) https://doi.org/10.1117/12.3015077
Event: SPIE Astronomical Telescopes + Instrumentation, 2024, Yokohama, Japan

Conference Poster

Abstract

We describe the cryogenic system being developed for Taurus: a super-pressure balloon-borne microwave polarimeter scheduled to fly in 2027. The Taurus cryogenic system consists of a 660L liquid helium cryostat which achieves a base temperature of ≤100mK with the help of a capillary-fed superfluid tank and a closed cycle dilution refrigerator. The main tank is supported with fiberglass flexures and is encased in two layers of vapor-cooled shields which allow Taurus to make full use of the extended flight time offered by the super-pressure balloon platform. The Taurus cryostat is projected to hold for over 50 days while weighing under 1000lbs. We present the design, testing, and thermal analysis of the Taurus cryogenic systems.

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Simon Tartakovsky, Alexandre E. Adler, Jason E. Austermann, Steven J. Benton, Rick Bihary, Malcolm Durkin, Shannon M. Duff, Jeffrey P. Filippini, Aurelien A. Fraisse, Thomas J. L. J. Gascard, Sho M. Gibbs, Suren Gourapura, Jon E. Gudmundsson, John W. Hartley, Johannes Hubmayr, William C. Jones, Steven Li, Jared L. May, Johanna M. Nagy, Kate Okun, Ivan L. Padilla, L. Javier Romualdez, and Michael R. Vissers "Thermal architecture for a cryogenic super-pressure balloon payload: design and development of the Taurus flight cryostat", Proc. SPIE 13094, Ground-based and Airborne Telescopes X, 130944B (11 September 2024); https://doi.org/10.1117/12.3015077

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