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18 November 1998 Ground characterization of the Wide-field Infrared Explorer (WIRE) instrument
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Abstract
The Wide-Field Infrared Explorer (WIRE) is a small cryogenic spaceborne infrared telescope being readied for launch in September 1998 as the fifth of NASA's Small Explorers. WIRE utilizes two 128 X 128 Si:As Focal Plane Arrays (FPAs) produced by Boeing North American with a 30 cm diameter Ritchey Cretien diamond turned mirror system. This mission takes advantage of recent advances in infrared array detector technology to provide a large sensitivity gain over previously flown missions. Two broad pass bands are defined for a deep pointed survey to search for protogalaxies and to study the evolution of starburst galaxies. The Space Dynamics Laboratory at Utah State University (SDL/USU) used the multifunction infrared calibrator and other special purpose cryogenic equipment to perform a ground characterization of the WIRE instrument. The focus was verified cold with two independent measurements. Both in-band and out-of-band Relative Spectral Response measurements were made; some sensitivity to temperature, bias voltage, and location on the long wavelength focal plane array were found. Dark current and dark noise measurements are also reported.
© (1998) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
John C. Kemp, Mark F. Larsen, James Q. Peterson, and Steven D. Sargent "Ground characterization of the Wide-field Infrared Explorer (WIRE) instrument", Proc. SPIE 3437, Infrared Spaceborne Remote Sensing VI, (18 November 1998); https://doi.org/10.1117/12.331335
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