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Infrared ground-based astronomy with the Hughes 256 X 256 PtSi arrayIt is shown that large format PtSi Schottky diode infrared arrays, the Hughes 256 X 256 hybrid Schottky array in particular, are competitive alternatives to the smaller format photovoltaic arrays for ground-based astronomy. The modest quantum efficiency of the PtSi compared to the photovoltaic devices is more than compensated for by the larger format. The use of hybrid technology yields effective fill factors of nearly 100 percent, and the low dark current, noise, excellent imaging characteristics, cost, and solid nitrogen operating temperature add to the effectiveness of this array for ground-based imaging. In addition to discussing the characteristics of this array, researchers present laboratory test data and astronomical results achieved at Kitt Peak.
Document ID
19900012015
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Fowler, A. (National Optical Astronomy Lab. Tucson AZ., United States)
Joyce, R. (National Optical Astronomy Lab. Tucson AZ., United States)
Gatley, I. (National Optical Astronomy Lab. Tucson AZ., United States)
Gates, J. (Hughes Aircraft Co. Carlsbad, CA., United States)
Herring, J. (Hughes Aircraft Co. Carlsbad, CA., United States)
Date Acquired
September 6, 2013
Publication Date
October 1, 1989
Publication Information
Publication: NASA, Ames Research Center, Proceedings of the Third Infrared Detector Technology Workshop
Subject Category
Astronomy
Accession Number
90N21331
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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