NDLI: First astronomical use of multiplexed transition edge bolometers

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First astronomical use of multiplexed transition edge bolometers

Content Provider	NASA Technical Reports Server (NTRS)
Author	Pajot, F. Moseley, S. H. Phillips, T. G. Reintsema, C. D. Maffei, B. Grossman, E. N. Chervenak, J. A. Irwin, K. D. Benford, D. J. DeKotwara, S. A.
Copyright Year	2001
Description	We present performance results based on the first astronomical use of multiplexed superconducting bolometers. The Fabry-Perot Interferometer Bolometer Research Experiment (FIBRE) is a broadband submillimeter spectrometer that achieved first light in June 2001 at 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 five orders simultaneously from one position on the sky. With tuning of the Fabry-Perot over one free spectral range, a spectrum covering delta-lamda/lamda = 1/7 at a resolution of delta-lamda/lamda = 1/1200 can be acquired. This spectral resolution is sufficient to resolve doppler broadened line emission from external galaxies. FIBRE operates in the 350 micrometer and 450 micrometer bands. These bands cover line emission from the important PDR tracers neutral carbon [CI] and carbon monoxide (CO). We have verified that the multiplexed bolometers are photon noise limited even with the low power present in moderate resolution spectrometry.
File Size	289112
Page Count	5
File Format	PDF
Alternate Webpage(s)	http://archive.org/details/NASA_NTRS_Archive_20020014435
Archival Resource Key	ark:/13960/t2j72d591
Language	English
Publisher Date	2001-01-01
Access Restriction	Open
Subject Keyword	Optics Submillimeter Waves Multiplexing Bolometers Design Analysis Fabry-perot Interferometers Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science
Content Type	Text
Resource Type	Technical Report

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