Stable fiber optic scintillative X-ray screen and method of prod

Details Stable fiber optic scintillative X-ray screen and method of prod Stable fiber optic scintillative X-ray screen and method of prod

1977-06-27

1978-07-18

Dixon, Harold A.

Radiant energy

Invisible radiation responsive nonelectric signalling

Luminescent device

250486, 2523014R, 2523014H, G01J 158

Patent

active

041017811

ABSTRACT:
An X-ray intensifying screen pair comprising a thin screen and a fiber optic thick screen is disclosed, together with a method for producing the fiber optic thick screen, which method includes the steps of evaporation and vacuum deposition. The thin screen comprises a gadolinium oxysulphide rare earth scintillator capable of providing good image resolution, and the fiber optic thick screen comprises a thallium doped cesium iodide scintillator that is capable of high speed (i.e., good X-ray photon-stopping and photon-conversion) operation, that is stable under ambient conditions, and that requires low patient dosage.

REFERENCES:
patent: 2272375 (1942-02-01), Kallmann et al.
patent: 3829700 (1974-08-01), Buchanan
patent: 3872309 (1975-03-01), DeBelder et al.
patent: 4039840 (1977-08-01), Shimiya et al.
patent: 4070583 (1978-01-01), Rabatin

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