X-ray image storage screen

Details X-ray image storage screen X-ray image storage screen

1984-11-21

1986-05-06

Demers, Arthur P.

Compositions

Inorganic luminescent compositions

Compositions containing halogen; e.g., halides and oxyhalides

250337, 2504831, 2504841, 428691, C09K 1108

Patent

active

045870365

ABSTRACT:
An x-ray image storage screen for use in converting x-ray images into video pictures by the use of applied heat, such as a laser beam, has an active substance for the storage layer which is an alkaline earth-mixed halogen system having the formula BaF.sub.2 (Br, Cl):Eu:Sr, with barium fluoride (BaF.sub.2) comprising 0.6 mol, and the barium chloride (BaCl.sub.2) and the barium bromide (BaBr.sub.2) comprising the remaining 0.4 mol, preferably in equal portions, and wherein the activator europium (Eu) does not exceed 10.sup.-4 g-atom and the activator strontium (Sr) does not exceed 10.sup.-2 g-atom.

REFERENCES:
patent: 3975637 (1976-08-01), Ikedo et al.
patent: 4011455 (1977-03-01), Waller et al.
patent: 4088894 (1978-05-01), Rabatin
patent: 4138529 (1979-02-01), Mori et al.
patent: 4157981 (1979-06-01), Stevels et al.
patent: 4239968 (1980-12-01), Kotera et al.
patent: 4336154 (1982-06-01), Nishimura et al.

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