Electroradiographic recording device

Details Electroradiographic recording device Electroradiographic recording device

1977-09-06

1981-04-07

Church, Craig E.

Radiant energy

Source with charged plate-type detector

G03B 4116

Patent

active

042608872

ABSTRACT:
An electroradiographic display with a high picture quality at low radiation intensities is obtained with a device consisting of a source of X-rays, an electrode passing X-rays, an intermediate recording space for an object to be displayed, an electrode on the side remote from the recording space on which a layer of dielectric material is disposed, and a second electrode with a photoconductive layer. The layers are separated by a gas gap which is bounded by one or more side walls. A direct voltage source is in electrical contact with the electrodes. The photoconductive layer comprises a granular photoconductive material in a binder. The gas gap between the dielectric layer and the photoconductive layer is from 50 to 500 .mu.m wide and the electrode passing X-rays has a surface resistance between 10.sup.3 to 10.sup.8 Ohms.

REFERENCES:
patent: 2825814 (1958-03-01), Walkup
patent: 3543025 (1970-11-01), Stanton

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