Device for controlling radiation image information read out gain

Details Device for controlling radiation image information read out gain Device for controlling radiation image information read out gain

1981-07-07

1983-10-18

Smith, Alfred E.

Radiant energy

Automatic/serial detection of similar sources

2503541, G03C 516, G01J 142

Patent

active

044107994

ABSTRACT:
In a radiation image information read out apparatus using a stimulable phosphor in which a radiation image is once recorded and then read out by use of stimulating rays impinging thereupon, the gain of the read out system is controlled according to a fluctuation of the intensity of the stimulating ray source by use of an additional photodetector. The read out gain is also controlled according to the radiographic conditions by means of the standard signal for setting the sensitivity level of the read out system.

REFERENCES:
patent: 3917947 (1975-11-01), Fenton
patent: 4185198 (1980-01-01), Fujimoto
patent: 4239968 (1980-12-01), Kotera et al.
patent: 4258264 (1981-03-01), Kotera et al.
patent: 4284889 (1981-08-01), Kato et al.
patent: 4309612 (1982-01-01), Aichinger

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