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Multiplexed Readout of Thermal Bolometers with Superconducting Transition Edge ThermometersHistory shows that in astronomy, more is better. In the near future, direct detector arrays for the far-infrared and submillimeter will contain hundreds to thousands of elements. A multiplexed readout is necessary for practical implementation of such arrays, and has been developed using SQUIDs. The technology permits a 32 x 32 array of bolometers to be read out using approximately 100 wires rather than the >2000 needed with direct wiring. These bolometer arrays are made by micromachining techniques, using superconducting transition edge sensors as the thermistors. We describe the development of this multiplexed superconducting bolometer array architecture as a step toward bringing about the first astronomically useful arrays of this design. This technology will be used in the Submillimeter and Far Infrared Experiment (SAFIRE) instrument on Stratospheric Observatory for Infrared Astronomy (SOFIA), and is a candidate for a wide variety of other spectroscopic and photometric instruments.
Document ID
20020038938
Document Type
Conference Paper
Authors
Benford, Dominic J.
(NASA Goddard Space Flight Center Greenbelt, MD United States)
Allen, Christine A.
(NASA Goddard Space Flight Center Greenbelt, MD United States)
Chervenak, James A.
(NASA Goddard Space Flight Center Greenbelt, MD United States)
Freund, Mino M.
(NASA Goddard Space Flight Center Greenbelt, MD United States)
Kutyrev, Alexander S.
(Raytheon Information Technology and Scientific Services Greenbelt, MD United States)
Moseley, S. Harvey
(NASA Goddard Space Flight Center Greenbelt, MD United States)
Shafer, Richard A.
(NASA Goddard Space Flight Center Greenbelt, MD United States)
Staguhn, Johannes G.
(Raytheon Information Technology and Scientific Services Greenbelt, MD United States)
Grossman, Erich N.
(National Inst. of Standards and Technology Boulder, CO United States)
Hilton, Gene C.
(National Inst. of Standards and Technology Boulder, CO United States)
Date Acquired
August 20, 2013
Publication Date
December 1, 2001
Publication Information
Publication: Proceedings of the Twenlfth International Symposium on Space Terahertz Technology
Subject Category
Electronics And Electrical Engineering
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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IDRelationTitle20020038920Analytic PrimaryProceedings of the Twelfth International Symposium on Space Terahertz Technology
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