Method for improving the screen brightness of gadolinium oxysulf

Details Method for improving the screen brightness of gadolinium oxysulf Method for improving the screen brightness of gadolinium oxysulf

1998-04-22

2000-08-15

Bell, Janyce

Coating processes

Electrical product produced

Fluorescent or phosphorescent base coating

427158, 25230145, B05D 506, C09K 1108

Patent

active

061032964

ABSTRACT:
A method is provided for improving the x-ray screen brightness of gadolinium oxysulfide x-ray phosphors. The method applies annealing and acid washing steps in a specific order following deagglomeration of the phosphor in order to ameliorate the loss of brightness caused by the deagglomeration.

REFERENCES:
patent: 3418246 (1968-12-01), Royce
patent: 3502590 (1970-03-01), Royce et al.
patent: 3725704 (1973-04-01), Buchanan et al.
patent: 4507560 (1985-03-01), Mathers
patent: 4536436 (1985-08-01), Maeoka et al.
patent: 4925594 (1990-05-01), Yale

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