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A Compact, Modular Package for Superconducting Bolometer ArraysAs bolometer arrays grow to ever-larger formats, packaging becomes a more critical engineering issue. We have designed a detector package to house a superconducting bolometer array, SQUID multiplexers, bias and filtering circuitry, and electrical connectors. The package includes an optical filter, magnetic shielding, and has well-defined thermal and mechanical interfaces. An early version of this package has been used successfully in the GISMO 2mm camera, a 128-pixel camera operating at a base temperature of 270mK. A more advanced package permits operation at lower temperatures by providing direct heat sinking to the SQUIDS and bias resistors, which generate the bulk of the dissipation in the package. Standard electrical connectors provide reliable contact while enabling quick installation and removal of the package. We describe how the design compensates for differing thermal expansions, allows heat sinking of the bolometer array, and features magnetic shielding in critical areas. We highlight the performance of this detector package and describe its scalability to 1280-pixel arrays in the near future.
Document ID
20080044679
Acquisition Source
Goddard Space Flight Center
Document Type
Conference Paper
Authors
Benford, D.
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
Date Acquired
August 24, 2013
Publication Date
April 28, 2008
Subject Category
Astronomy
Meeting Information
Meeting: International Symposium on Space Terahertz Technology
Location: Groningen, Holland
Country: Netherlands
Start Date: April 28, 2008
End Date: April 30, 2008
Sponsors: Groningen Rijksuniv.
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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