FIBRE: A Broadband Submillimeter Spectrometer using Transition Edge Sensor Bolometers with SQUID multiplexer readout

Details FIBRE: A Broadband Submillimeter Spectrometer using Transition Edge Sensor Bolometers with SQUID multiplexer readout FIBRE: A Broadband Submillimeter Spectrometer using Transition Edge Sensor Bolometers with SQUID multiplexer readout

May 2001

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001aas...198.0510s&link_type=abstract

American Astronomical Society, 198th AAS Meeting, #05.10; Bulletin of the American Astronomical Society, Vol. 33, p.792

Astronomy and Astrophysics

Astronomy

Scientific paper

FIBRE is a submillimeter spectrometer based on a helium-cooled scanning Fabry-Perot and superconducting transition edge sensor bolometers (TES). A SQUID multiplexer is used to read out the individual detector pixels. 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 Δ λ /λ =1/7 at a resolution of δ λ /λ ~1/1500 can be acquired. This spectral resolution is sufficient to resolve doppler broadened line emission from external galaxies. FIBRE operates in the 350μ m and 450μ m bands. These bands cover line emission from the important PDR tracers neutral carbon [CI] and carbon monoxide CO. The large bandwidth of FIBRE will allow to measure the spectral index of underlying sub-mm continuum emission. The spectrometer will be used at the Caltech Submillimeter Observatory in 2001.

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