Method of recording radiographic images

Details Method of recording radiographic images Method of recording radiographic images

1976-11-22

1978-10-17

Borchelt, Archie R.

Radiant energy

Source with charged plate-type detector

250320, G03G 1300

Patent

active

041211014

ABSTRACT:
In Reiss chamber method or ionography, or in a method of modification or combination of these methods wherein an electrostatic latent image of an object irradiated with radiations such as X-rays is formed on an insulating image recording layer, a photoconductive material is used as the image recording layer. The charge carried on the photoconductive image recording layer is partly neutralized by the radiations received thereby. In an embodiment, a fluorescent layer is attached to the photoconductive image recording layer to accelerate the neutralization of the charge when the recording layer is exposed to the radiations. In another embodiment, the photoconductive material has a property that the photoconductivity increases as the strength of an electric field applied thereacross increases, and the image recording layer made of such a photoconductive material is uniformly exposed to light simultaneously with or after the irradiation of the radiations.

REFERENCES:
patent: 3603790 (1971-09-01), Cleare
patent: 3949222 (1976-04-01), Lewis
patent: 3970844 (1976-07-01), Fenn, Jr. et al.
patent: 4030922 (1976-06-01), Honjo et al.

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