The Sydney University PAPA camera

Details The Sydney University PAPA camera The Sydney University PAPA camera

Apr 1994

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1994pasau..11...50l&link_type=abstract

Astronomical Society of Australia, Proceedings (ISSN 0066-9997), vol. 11, no. 1, p. 50-54

Astronomy and Astrophysics

Astronomy

1

Cameras, Image Intensifiers, Microchannel Plates, Photons, Radiation Counters, Astronomical Photography, Gray Scale, Pixels

Scientific paper

The Precision Analog Photon Address (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 256x256 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.

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