Electrographic recording process

Details Electrographic recording process Electrographic recording process

1975-10-22

1976-08-31

Smith, Alfred E.

Radiant energy

Automatic/serial detection of similar sources

250315A, 250327, G03B 517, G03C 516, G03G 1300

Patent

active

039783359

ABSTRACT:
A recording process is disclosed in which an X-ray sensitive photoconductive element exhibiting persistent conductivity and a charge sensitive, dry processable recording material are sandwiched between a pair of electrodes. A source of potential is applied across the electrodes and the photoconductive element is briefly exposed to an imagewise pattern of X-ray radiation forming a latent image in the recording material. Allowing the current to continue to flow through the sandwich after the X-ray exposure is terminated increases the sensitivity of the recording process by a factor of up to 100. The latent image is then amplified and rendered visible by uniformly heating the entire recording material.

REFERENCES:
patent: 3719824 (1973-03-01), McMaster et al.

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