Image converted for X-ray equipment and the like

Details Image converted for X-ray equipment and the like Image converted for X-ray equipment and the like

1983-09-23

1985-08-13

Goodrow, John L.

X-ray or gamma ray systems or devices

Specific application

Xeroradiography

378 28, 430 57, G01T 124, H01L 3110

Patent

active

045354685

ABSTRACT:
The invention relates to a photographic apparatus useable, for example, in medical radiodiagnostics, with a three-layer system lying between two electrodes, to which a d-c voltage is applied. The two outer layers are photoconductors and the middle layer consists of a material in which charge carriers can be stored. An image radiated from one side can be read out from the other side in the form of an electric pulse sequence by scanning by means of a light beam and can be reproduced on a television screen. The invention provides a storage layer which has areas in which charge carriers adhere and that on the side of the system on which the image is radiated in the electrode has the same polarity as the charge carriers for which the storage layer has traps.

REFERENCES:
patent: 3069551 (1962-12-01), Haine
patent: 3975635 (1976-08-01), Lennon
patent: 4249078 (1981-02-01), Lange et al.
patent: 4268750 (1981-05-01), Cowart
patent: 4286033 (1981-08-01), Neyhart et al.
patent: 4370398 (1983-01-01), Sato
patent: 4377628 (1983-03-01), Ishioka et al.
"A Method of Electronic Readout of Electrophotographic and Electroradiographic Images", Korn et al., Journal of Applied Photographic Engineering, pp. 178 to 182.
Shimizu et al., J. Appl. Phys. 51(12), Dec. 1980, pp. 6422-6423.

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