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Proceedings Paper

Multialkali Photocathode (S20) Optimization : Use In Streak Camera Tubes And Image Intensifiers Associated
Author(s): M . Beghin; G. Eschard
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Paper Abstract

Streak camera tubes have been developed with alkali antimonide photocathodes. At the be-ginning it was mainly monoalkali type S 9 or S 11 (caesium antimonide). These cathodes have a good sensitivity in blue and are currently used in photomultipliers for nuclear detec-tion. From theoretical and experimental results obtained in laboratory (Laboratoires d'Electronique et de Physique Appliquee - LEP), development studies on multialkali antimonide thin films have been recently carried out on industrial equipments at the Hyperelec factory. It is now possible to produce with a good reproducibility thin films with high red sensitivity. Particularly the use of transfer technique allows to obtaina very high sensitivity in the bandwidth of 800 - 850 nm. This characteristic is very important for calibration of streak camera tubes because it is made by using LED or ultra fast laser diodes emitting in the red. It is also important for increasing the detection sensitivity when streak tubes are used in connection with long fiber optics which transmit preferably red signal. The paper will describe the main parameters on which it is possible to act and the photo-cathode results expected on streak camera tubes processed by transfer technique.

Paper Details

Date Published: 1 February 1985
PDF: 6 pages
Proc. SPIE 0491, 16th Intl Congress on High Speed Photography and Photonics, (1 February 1985); doi: 10.1117/12.967925
Show Author Affiliations
M . Beghin, Hyperelec (France)
G. Eschard, Hyperelec (France)

Published in SPIE Proceedings Vol. 0491:
16th Intl Congress on High Speed Photography and Photonics
Michel L. Andre; Manfred Hugenschmidt, Editor(s)

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