X-Ray image intensifying screens comprising rare-earth oxyhalide

Details X-Ray image intensifying screens comprising rare-earth oxyhalide X-Ray image intensifying screens comprising rare-earth oxyhalide

1978-12-19

1980-09-23

Edmundson, F.

Radiant energy

Invisible radiation responsive nonelectric signalling

Luminescent device

250483, 25230136, 2523014H, C01T 120, C09K 1146

Patent

active

042245249

ABSTRACT:
An X-ray image intensifying screen, which includes in a binder layer rare-earth oxyhalide phosphor particles that are in contact or admixed with an inorganic or organic substance or mixture of substances bringing about that the fluorescence power of said oxyhalide phosphor particles is less prone to be reduced by moisture, said substance being a non-phosphor substance or a phosphor substance other than calcium tungstate and producing hydroxyl ions when put in water, wherein the hydroxyl ion production power of said substance is such that when putting said substance in water at 25.degree. C. in an amount of 0.1 equivalent per liter a pH of at least 8.0 is obtained and the solubility in water of said substance is such that at least 0.05 g of said substance is soluble in 100 ml of water at 20.degree. C.

REFERENCES:
patent: 2716082 (1955-08-01), Smith
patent: 3999993 (1976-12-01), Patel et al.
patent: 4054799 (1977-10-01), Wolfe et al.
patent: 4138361 (1979-02-01), Suys et al.

Affiliated with

Also associated with

Rating

X-Ray image intensifying screens comprising rare-earth oxyhalide does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with X-Ray image intensifying screens comprising rare-earth oxyhalide, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and X-Ray image intensifying screens comprising rare-earth oxyhalide will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-646246