Computer Science – Performance
Scientific paper
Dec 2008
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008agufmgc23a0763h&link_type=abstract
American Geophysical Union, Fall Meeting 2008, abstract #GC23A-0763
Computer Science
Performance
0360 Radiation: Transmission And Scattering, 0394 Instruments And Techniques, 1610 Atmosphere (0315, 0325), 1640 Remote Sensing (1855), 1694 Instruments And Techniques
Scientific paper
Arsenic-doped Blocked Impurity Band (BIB) detectors are a mature detector technology for the infrared spectral range of 5 to 28 micrometers for low-background astronomy [Spitzer, ISO, WISE, JWST, and other observatories] and for higher-background astronomy from terrestrial telescopes. These detectors operate below 10 K (typically using cryogenic cooling) and achieve detectivity, bandwidth, and linearity performance at least an order of magnitude over uncooled detectors such as pyroelectrics or bolometers. To address specific requirements for long-duration, full-spectrum Earth radiance studies, a joint development effort between DRS Technologies and NASA Langley Research Center has now extended BIB detector wavelength sensitivity to at least 50 micrometers and raised operating temperature above 10 K for long-duration orbital operation with existing space-capable cryocoolers. In parallel DRS has demonstrated a large-area BIB detector design with negligible internal losses and gains for use in a 99.9% QE, two-detector light trap for a Fourier Transform Spectrometer application. The application of BIB detectors with these improved features to CLARREO provides major benefits: 1) Light trapping combined with high internal QE detectors results in instrument spectral radiance results that are insensitive to operating environment variations or radiation induced drift in detector characteristics over orbital lifetime. 2) Order-of-magnitude improved detectivity allows order-of-magnitude reduction in the time to acquire an interferogram - significantly reducing scene smear associated with the time of flight over the Earth. These improvements in detector capability enable the most accurate and precise full Earth spectrum radiance measurements.
Hogue Henry H.
Mlynczak Martin G.
Muzilla M. S.
No associations
LandOfFree
Far-Infrared Detectors for CLARREO Interferometer does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Far-Infrared Detectors for CLARREO Interferometer, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Far-Infrared Detectors for CLARREO Interferometer will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1242043