Read system for a luminescent image storage screen in an x-ray d

Details Read system for a luminescent image storage screen in an x-ray d Read system for a luminescent image storage screen in an x-ray d

1987-04-02

1989-08-15

Fields, Carolyn E.

Radiant energy

Automatic/serial detection of similar sources

378 62, 378 99, G01N 2304

Patent

active

048577340

ABSTRACT:
A read system for a luminescent image storage screen in an x-ray diagnostics installation, the luminescent screen latently storing an x-radiation image, includes a source of readout radiation which excites the storage screen to luminesce, a photo-multiplier detector which receives light emitted by the storage luminescent screen and converts the incident light into electrical signals in the form of a pulse sequence having a pulse rate dependent on the brightness incident on the light-sensitive entry face of the photo-multiplier, and a counter which counts the pulses at the output of the detector. The output of the counter is supplied to a monitor through a converter for generating a visual image.

REFERENCES:
patent: 3668396 (1972-06-01), Asers et al.
patent: 4485302 (1984-11-01), Tanake et al.
patent: 4606064 (1986-08-01), Haendle
Analog-Digital Conversion Notes, Analog Devices, Inc., p. 69, 1977.
"Thermoluminescence Dosimetry with Photon Counting," Schlesinger et al., IEEE Transactions Nuclear Science, vol. NS-19, No. 3, Jun. 1972, pp. 34-38.

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