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Thermal architecture for the SPIDER flight cryostat

Gudmundsson, J. E. and Bock, J. J. and Crill, B. P. and Doré, O. and Filippini, J. and Golwala, S. R. and Hristov, V. V. and Mason, P. V. and Morford, T. A. and Runyan, M. C. and Schenker, M. A. and Trangsrud, A. and Tucker, R. S. (2010) Thermal architecture for the SPIDER flight cryostat. In: Millimeter, Submillimeter, and Far-Infrared Detectors and Instrumentation for Astronomy V. Proceedings of SPIE. No.7741. Society of Photo-Optical Instrumentation Engineers (SPIE) , Bellingham, WA, Art. No. 77411M. ISBN 978-0-81948-231-0.

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We describe the cryogenic system for SPIDER, a balloon-borne microwave polarimeter that will map 8% of the sky with degree-scale angular resolution. The system consists of a 1284 L liquid helium cryostat and a 16 L capillary-filled superfluid helium tank, which provide base operating temperatures of 4 K and 1.5 K, respectively. Closed-cycle 3He adsorption refrigerators supply sub-Kelvin cooling power to multiple focal planes, which are housed in monochromatic telescope inserts. The main helium tank is suspended inside the vacuum vessel with thermally insulating fiberglass flexures, and shielded from thermal radiation by a combination of two vapor cooled shields and multi-layer insulation. This system allows for an extremely low instrumental background and a hold time in excess of 25 days. The total mass of the cryogenic system, including cryogens, is approximately 1000 kg. This enables conventional long duration balloon flights. We will discuss the design, thermal analysis, and qualification of the cryogenic system.

Item Type:Book Section
Related URLs:
URLURL TypeDescription DOIArticle Paper
Bock, J. J.0000-0002-5710-5212
Crill, B. P.0000-0002-4650-8518
Doré, O.0000-0002-5009-7563
Filippini, J.0000-0001-8217-6832
Golwala, S. R.0000-0002-1098-7174
Mason, P. V.0000-0002-7963-7420
Additional Information:© 2010 SPIE. The International Society for Optical Engineering. The Spider collaboration gratefully acknowledges the support of NASA (grant number NNX07AL64G), the Gordon and Betty Moore Foundation, and NSERC. HCC is supported by a Princeton Fellowship in Experimental Physics. JPF is partially supported by a Moore Postdoctoral Fellowship in Experimental Physics. JEG is partially supported by the ASF Thor Thors Special Contribution Fund. WCJ acknowledges the support of the Alfred P. Sloan Foundation. The Spider cryostat was fabricated by Redstone Aerospace in Longmont Colorado. We are grateful to Robert Levenduski, Larry Kaylor and Edward Riedel for their contributions to the project. The Spider collaboration also extends special gratitude to Andrew E. Lange, who passed away on January 22. Andrew was a leading light of the cosmology community and a driving force behind the Spider project. He is greatly missed by his many collaborators, past and present.
Funding AgencyGrant Number
Gordon and Betty Moore FoundationUNSPECIFIED
Natural Sciences and Engineering Research Council of Canada (NSERC)UNSPECIFIED
Princeton UniversityUNSPECIFIED
Gordon and Betty Moore FoundationUNSPECIFIED
American-Scandinavian FoundationUNSPECIFIED
Alfred P. Sloan FoundationUNSPECIFIED
Subject Keywords:SPIDER, polarimetry, ballooning, cryogenics, cryostat, adsorption, refrigerator, multi-layer insulation, CMB
Series Name:Proceedings of SPIE
Issue or Number:7741
Record Number:CaltechAUTHORS:20161031-084709465
Persistent URL:
Official Citation:J. E. Gudmundsson ; P. A. R. Ade ; M. Amiri ; S. J. Benton ; R. Bihary ; J. J. Bock ; J. R. Bond ; J. A. Bonetti ; S. A. Bryan ; B. Burger ; H. C. Chiang ; C. R. Contaldi ; B. P. Crill ; O. Doré ; M. Farhang ; J. Filippini ; L. M. Fissel ; N. N. Gandilo ; S. R. Golwala ; M. Halpern ; M. Hasselfield ; G. Hilton ; W. Holmes ; V. V. Hristov ; K. D. Irwin ; W. C. Jones ; C. L. Kuo ; C. J. MacTavish ; P. V. Mason ; T. E. Montroy ; T. A. Morford ; C. B. Netterfield ; D. T. O'Dea ; A. S. Rahlin ; C. D. Reintsema ; J. E. Ruhl ; M. C. Runyan ; M. A. Schenker ; J. A. Shariff ; J. D. Soler ; A. Trangsrud ; C. Tucker ; R. S. Tucker ; A. D. Turner; Thermal architecture for the SPIDER flight cryostat. Proc. SPIE 7741, Millimeter, Submillimeter, and Far-Infrared Detectors and Instrumentation for Astronomy V, 77411M (July 15, 2010); doi:10.1117/12.857925.
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:71605
Deposited By: Ruth Sustaita
Deposited On:31 Oct 2016 17:21
Last Modified:21 Nov 2020 00:05

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