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Proceedings Paper

Imaging photon detectors
Author(s): Jonathon R. Howorth; J. Ralph Powell
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Paper Abstract

Imaging photon detectors (IPDs) can perform down to light levels of a few photons/sq cm/sec; this is 5-6 orders of magnitude more sensitive than civil and military low-light TV systems, and obviates the use of cryogenically cooled arrays which can destroy the linearity of cooled CCDs. An account is presently given of the characteristics of vacuum-tube IPDs with resistive anode, with centroiding CCD, and with wedge-and-strip readout, in order to evaluate their comparative advantages. All three readout system types are in principle capable of covering the entire EM spectrum, from MeV photons/particles down to less than 1 eV, and share similar limitations in count rate, counting efficiency, and resolution.

Paper Details

Date Published: 1 July 1990
PDF: 8 pages
Proc. SPIE 1243, Electron Image Tubes and Image Intensifiers, (1 July 1990); doi: 10.1117/12.19486
Show Author Affiliations
Jonathon R. Howorth, Instrument Technology Ltd. (United Kingdom)
J. Ralph Powell, Instrument Technology Ltd. (United Kingdom)

Published in SPIE Proceedings Vol. 1243:
Electron Image Tubes and Image Intensifiers
Illes P. Csorba, Editor(s)

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