X-ray image intensifier having input screen with carbon layer

Details X-ray image intensifier having input screen with carbon layer X-ray image intensifier having input screen with carbon layer

1974-11-14

1976-06-08

Willis, Davis L.

Radiant energy

Invisible radiation responsive nonelectric signalling

Luminescent device

250486, G01J 158

Patent

active

039625826

ABSTRACT:
An X-ray image amplifier or intensifier and, more particularly, an input screen for electron-optical image intensifiers having a phosphorescent or luminescent layer supported on a carrier, which is followed by a photocathode layer, and wherein a dark-colored intermediate layer is located between the luminescent layer and the photocathode layer. The darkly-colored layer employed between the luminescent layer and the photocathode layer is constituted of an at least approximately uniform surface coating of carbon or graphite facilitating the partial transmission of the light from the luminescent layer.

REFERENCES:
patent: 2700116 (1955-01-01), Sheldon
patent: 3443104 (1969-05-01), Niklas
patent: 3697795 (1972-10-01), Braun et al.
patent: 3838273 (1974-09-01), Cusano

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