Astronomy and Astrophysics – Astrophysics
Scientific paper
Dec 2009
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009aspc..417..137b&link_type=abstract
Submillimeter Astrophysics and Technology: a Symposium Honoring Thomas G. Phillips ASP Conference Series, Vol. 417, proceedings
Astronomy and Astrophysics
Astrophysics
Scientific paper
The Submillimeter and Far-InfraRed Experiment (SAFIRE) on the SOFIA airborne observatory is an imaging spectrometer for wavelengths between 28 μm and 440 μm. Our design is a dual-band long-slit grating spectrometer, which provides broadband (˜ 4000 km/s) observations in two lines simultaneously over a field of view roughly 10 arcsec wide by 320 arcsec long. The low backgrounds in spectroscopy require very sensitive detectors with noise equivalent powers of order 10-18 W/Hz1/2. We are developing a kilopixel, filled detector array for SAFIRE in a 32×40 format. The detector consists of a transition edge sensor (TES) bolometer array, a per-pixel broadband absorbing backshort array, and a NIST SQUID multiplexer readout array. This general type of array has been used successfully in the GISMO instrument, so we extrapolate to the sensitivity needed for airborne spectroscopy. Much of the cryogenic, electronics, and software infrastructure for SAFIRE have been developed. I provide here an overview of the progress on SAFIRE.
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