Computer Science – Performance
Scientific paper
Oct 1989
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989tidt.work..311b&link_type=abstract
In NASA, Ames Research Center, Proceedings of the Third Infrared Detector Technology Workshop p 311-320 (SEE N90-21313 14-35)
Computer Science
Performance
3
Cameras, Cmos, Field Effect Transistors, Focal Plane Devices, Hubble Space Telescope, Infrared Spectrometers, Mercury Cadmium Tellurides, Near Infrared Radiation, Bias, Electrons, Energy Consumption, Low Noise, Multiplexing, Pixels, Quantum Efficiency, Readout, Switches
Scientific paper
Large area focal plane arrays of unprecedented performance were developed for use in Near Infrared Camera and Multi-Object Spectrometer (NICMOS), a proposed Hubble Space Telescope refurbishment instrument. These FPAs are 128x128-element, HgCdTe hybrid arrays with a cutoff wavelength of 2.5 microns. The multiplexer consists of a CMOS field effect transistor switch array with a typical mean readout noise of less than 30 electrons. The detectors typically have a mean dark current of less than 10 electrons/s at 77 K, with currents below 2 electrons measured at 60 K (both at 0.5 V reverse bias). The mean quantum efficiency is 40 to 60 percent at 77 K for 1.0 to 2.4 microns. Functional pixel yield is typically greater than 99 percent, and the power consumption is approximately 0.2 mW (during readout only).
Blessinger Michael
Kleinhans William
Rasche Robert
Rieke Marcia J.
Thompson Rodger
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