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Broadband Direct Detection Submillimeter Spectrometer with Multiplexed Superconducting Transition Edge Thermometer BolometersWe present performance results based on the first astronomical use of multiplexed superconducting bolometers as direct detectors (i.e., with cold electrons) for spectroscopy. The Fabry-Perot Interferometer Bolometer Research Experiment (FIBRE) is a broadband submillimeter spectrometer for the Caltech Submillimeter Observatory (CSO). FIBRE's detectors are superconducting transition edge sensor (TES) bolometers read out by a SQUID multiplexer. The Fabry-Perot uses a low resolution grating to order sort the incoming light. A linear bolometer array consisting of 16 elements detects this dispersed light, capturing 5 orders simultaneously from one position on the sky. With tuning of the Fabry-Perot over one free spectral range, a spectrum covering Delta lambda/lambda = 1/7 at a resolution of delta lambda/lambda = 1/1200 can be acquired. This spectral resolution is sufficient to resolve Doppler-broadened line emission from external galaxies. FIBRE has been operated in the 350 Am (850 GHz) band. These bands cover line emission from the important star formation tracers neutral carbon [CI] and carbon monoxide (CO).
Document ID
20020083046
Acquisition Source
Goddard Space Flight Center
Document Type
Conference Paper
Authors
Benford, D. J.
(NASA Goddard Space Flight Center Greenbelt, MD United States)
Ames, T. A.
(NASA Goddard Space Flight Center Greenbelt, MD United States)
Chervenak, J. A.
(NASA Goddard Space Flight Center Greenbelt, MD United States)
Moseley, S. H.
(NASA Goddard Space Flight Center Greenbelt, MD United States)
Shafer, R. A.
(NASA Goddard Space Flight Center Greenbelt, MD United States)
Staguhn, J. G.
(NASA Goddard Space Flight Center Greenbelt, MD United States)
Voellmer, G. M.
(NASA Goddard Space Flight Center Greenbelt, MD United States)
Pajot, F.
(Centre National de la Recherche Scientifique Orsay, France)
Rioux, C.
(Centre National de la Recherche Scientifique Orsay, France)
Phillips, T. G.
(California Inst. of Tech. Pasadena, CA United States)
Fisher, Richard R.
Date Acquired
August 20, 2013
Publication Date
January 1, 2002
Subject Category
Astronomy
Meeting Information
Meeting: Thirteenth International Symposium on Space Teraherz Technology
Location: Cambridge, MA
Country: United States
Start Date: March 26, 2002
End Date: March 28, 2002
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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