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The Sydney University PAPA Camera

Published online by Cambridge University Press:  25 April 2016

Peter R. Lawson*
Affiliation:
Chatterton Astronomy Department, University of Sydney, Sydney, NSW 2006

Abstract

The Papa camera is a photon-counting array detector that uses optical encoding to locate photon events on the output of a microchannel plate image intensifier. The Sydney University camera is a 256×256 pixel detector which can operate at speeds greater than 1 million photons per second and produce individual photon coordinates with a deadtime of only 300 ns. It uses a new Gray coded mask-plate which permits a simplified optical alignment and successfully guards against vignetting artifacts.

Type
Instruments and Basic Astronomy
Copyright
Copyright © Astronomical Society of Australia 1994

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