Astronomy and Astrophysics – Astronomy
Scientific paper
Feb 1985
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1985msfc.rept.....t&link_type=abstract
Final Report National Aeronautics and Space Administration. Marshall Space Flight Center, Huntsville, AL.
Astronomy and Astrophysics
Astronomy
Bolometers, Infrared Astronomy, Infrared Detectors, Cryogenic Equipment, Image Processing, Imaging Techniques, Mirrors
Scientific paper
The infrared array referred to as Big Mac (for Marshall Array Camera), was designed for ground based astronomical observations in the wavelength range 5 to 35 microns. It contains 20 discrete gallium-doped germanium bolometer detectors at a temperature of 1.4K. Each bolometer is irradiated by a square field mirror constituting a single pixel of the array. The mirrors are arranged contiguously in four columns and five rows, thus defining the array configuration. Big Mac utilized cold reimaging optics and an up looking dewar. The total Big Mac system also contains a telescope interface tube for mounting the dewar and a computer for data acquisition and processing. Initial astronomical observations at a major infrared observatory indicate that Big Mac performance is excellent, having achieved the design specifications and making this instrument an outstanding tool for astrophysics.
Baugher C.
Decher Rudolf
Telesco Charles M.
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