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Proceedings Paper

8-megapixel thermoelectrically cooled CCD imaging system
Author(s): Alan H. Diercks; John Angione; Christopher W. Stubbs; Kem Holland Cook; Edward Bowell; Bruce W. Koehn; Ralph A. Nye; Dave Dodgen
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Paper Abstract

We are developing an astronomical imaging system which employs a thermoelectrically cooled focal plane consisting of two 'edge-buttable' Loral 2048 X 2048 pixel CCDs. To allow strip scanning, the columns of the CCDs are mutually aligned on a custom Kovar mount. The clocking and bias voltage levels for each CCD are independently adjustable, but both CCDs are operated synchronously. Each chip is read out from one output and measured at 14 bits with commercially available A/D converters at a rate of 250 kpixels/s, permitting scanning across the sky at up to 1000 deg2/hr (about twenty times faster than the equatorial sidereal rate) to a limiting magnitude (S/N equals 3) near V equals 19. The instrument will be used as part of the Lowell Observatory Near-Earth-Object Search (LONEOS) using a 57-cm Schmidt telescope at Lowell Observatory in Flagstaff, Arizona.

Paper Details

Date Published: 14 March 1995
PDF: 7 pages
Proc. SPIE 2416, Cameras and Systems for Electronic Photography and Scientific Imaging, (14 March 1995); doi: 10.1117/12.204839
Show Author Affiliations
Alan H. Diercks, Univ. of Washington (United States)
John Angione, Univ. of Washington (United States)
Christopher W. Stubbs, Univ. of Washington (United States)
Kem Holland Cook, Lawrence Livermore National Lab. (United States)
Edward Bowell, Lowell Observatory (United States)
Bruce W. Koehn, Lowell Observatory (United States)
Ralph A. Nye, Lowell Observatory (United States)
Dave Dodgen, Dodgen Optical Co. (United States)


Published in SPIE Proceedings Vol. 2416:
Cameras and Systems for Electronic Photography and Scientific Imaging
Constantine N. Anagnostopoulos; Michael P. Lesser, Editor(s)

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