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Proceedings Paper

A Two-Dimensional Photon Counter
Author(s): Stephen A Shectman
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Paper Abstract

The 2D-Frutti instrument is a spectroscopic detector used at the cassegrain spectrograph of the Palomar 5-meter telescope. A Fairchild 380 x 488 element CCD array is used to detect photon event scintillations in a high-gain image intensifier. The diodes are inspected serially at a 15 MHz rate. As little as 1/8 of the CCD vertical format can be inspected in a minimum frame time of 1 msec. The event centers are located to 0.25 diode horizontally and 0.5 diode vertically. Up to 600 FWHM resolution elements are produced in the horizontal direction. Coincidence corrections are no more than a few percent for count rates up to 105/ sec when the array is uniformly illuminated.

Paper Details

Date Published: 9 January 1984
PDF: 4 pages
Proc. SPIE 0445, Instrumentation in Astronomy V, (9 January 1984); doi: 10.1117/12.966137
Show Author Affiliations
Stephen A Shectman, Carnegie Institution of Washington (United States)

Published in SPIE Proceedings Vol. 0445:
Instrumentation in Astronomy V
Alec Boksenberg; David L. Crawford, Editor(s)

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