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Two-Dimensional Silicon Vidicon Astronomical Photometer

McCord, Thomas B. and Westphal, James A. (1972) Two-Dimensional Silicon Vidicon Astronomical Photometer. Applied Optics, 11 (3). pp. 522-526. ISSN 0003-6935. doi:10.1364/AO.11.000522.

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We have developed and successfully used an integrating two-dimensional silicon diode array vidicon photometer which is exceptionally well suited for use with telescopes. The video signal is read out from the 1-cm silicon target of the vidicon through a current mode preamplifier and then converted to digital form and stored on magnetic tape. The 256 × 256 element frames are recorded at 20,000 eight-bit words/sec. The vidicon tube has a published quantum efficiency ranging from 85% at 0.5 µ to 6% at 1.1 µ and must be cooled to about -65°C to eliminate thermal dark current. The minimum detectable signal in the present system is about 1000 carriers per resolution element, limited by preamplifier and other system noise. The system is used as a single-frame camera. The large dynamic range (>10^3), linear response, high quantum efficiency over a large spectral region, and low cost of the system make it well suited for digital direct image and spectroscopy as well as for a laboratory digitizer of two-dimensional material.

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Additional Information:© 1972 Optical Society of America. Received 12 October 1971. This paper is Contribution 44 of the Planetary Astronomy Laboratory and contribution 2074 of the Division of Geological and Planetary Sciences.
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Other Numbering System NameOther Numbering System ID
Caltech Division of Geological and Planetary Sciences2074
Massachusetts Institute of Technology Planetary Astronomy Laboratory44
Issue or Number:3
Record Number:CaltechAUTHORS:20120815-072538993
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Official Citation:Two-Dimensional Silicon Vidicon Astronomical Photometer Applied Optics, Vol. 11, Iss. 3, pp. 522–526 (1972) Thomas B. McCord and James A. Westphal
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:33192
Deposited By: Ruth Sustaita
Deposited On:15 Aug 2012 14:43
Last Modified:09 Nov 2021 21:33

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