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Proceedings Paper

Photon Counting Reticon System-Description And Performance
Author(s): A. R. Jorden; P. D. Read; I. G. vanBreda
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Paper Abstract

A photon counting system has been developed as a common-user instrument for spectroscopy at SAAO (South Africa). A dual Reticon array with EMI and Varo intensifiers is used. The system is based on modular design using CAMAC. Frame subtraction and event centring to half a diode are incorporated. The hardware of the system, including the detector head, is described and details of setting up problems are discussed. Astronomical performance is summarised and some general performance tests are presented. Count rates up to 5 counts per pixel per second are achieved with negligible dark noise. Typical resolution is 25 microns (FWHM) over 20 mm.

Paper Details

Date Published: 16 November 1982
PDF: 8 pages
Proc. SPIE 0331, Instrumentation in Astronomy IV, (16 November 1982); doi: 10.1117/12.933478
Show Author Affiliations
A. R. Jorden, Royal Greenwich Observatory (United Kingdom)
P. D. Read, Royal Greenwich Observatory (United Kingdom)
I. G. vanBreda, Royal Greenwich Observatory (United Kingdom)

Published in SPIE Proceedings Vol. 0331:
Instrumentation in Astronomy IV
David L. Crawford, Editor(s)

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