Initial astronomical results with a new 5-14 micron Si:Ga 58x62 DRO array camera

Details Initial astronomical results with a new 5-14 micron Si:Ga 58x62 DRO array camera Initial astronomical results with a new 5-14 micron Si:Ga 58x62 DRO array camera

Oct 1989

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989tidt.work..267g&link_type=abstract

In NASA, Ames Research Center, Proceedings of the Third Infrared Detector Technology Workshop p 267-282 (SEE N90-21313 14-35)

Astronomy and Astrophysics

Astronomy

7

Astronomy, Cameras, Gallium, Imaging Techniques, Photoconductors, Photometers, Silicon, Telescopes, Bandwidth, Broadband, Doped Crystals, Efficiency, Electrons, Photons, Pixels, Readout, Research Facilities

Scientific paper

A new array camera system was developed using a 58 x 62 pixel Si:Ga (gallium doped silicon) DRO (direct readout) photoconductor array detector manufactured by Hughes/Santa Barbara Research Center (SBRC). The camera system is a broad band photometer designed for 5 to 14 micron imaging with large ground-based optical telescopes. In a typical application a 10 micron photon flux of about 10(exp 9) photons sec(exp -1) m(exp -2) microns(exp -1) arcsec(exp -2) is incident in the telescope focal plane, while the detector well capacity of these arrays is 10(exp 5) to 10 (exp 6) electrons. However, when the real efficiencies and operating conditions are accounted for, the 2-channel 3596 pixel array operates with about 1/2 full wells at 10 micron and 10% bandwidth with high duty cycle and no real experimental compromises.

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