Spherical phosphor aggregates, their preparation and use in X-ra

Details Spherical phosphor aggregates, their preparation and use in X-ra Spherical phosphor aggregates, their preparation and use in X-ra

1988-08-09

1990-01-02

Howell, Janice A.

Radiant energy

Invisible radiation responsive nonelectric signalling

Luminescent device

2504871, 2504861, G03C 517

Patent

active

048915270

ABSTRACT:
Radiogra phic screens of reduced quantum noise are prepared from spherical aggregates of randomly oriented plate shaped or needle shaped phosphor particles. These spherical aggregates are produced by spray drying a slurry of the phosphor particles dispersed in a liquid medium in which is dissolved a suitable binder.

REFERENCES:
patent: 3795814 (1974-03-01), Rabatin
patent: 3936644 (1976-02-01), Rabatin
patent: 4315979 (1982-02-01), Brines et al.
patent: 4316092 (1982-02-01), Rabatin
patent: 4481416 (1984-11-01), Rabatin

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