Niobium-activated yttrium tantalate x-ray phosphor with improved

Details Niobium-activated yttrium tantalate x-ray phosphor with improved Niobium-activated yttrium tantalate x-ray phosphor with improved

1990-01-02

1990-11-13

Cooper, Jack

Compositions

Inorganic luminescent compositions

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

2523014R, C09K 1178

Patent

active

049700243

ABSTRACT:
A niobium-activated yttrium tantalate x-ray phosphor which incorporates small molar amounts of a rubidium or cesium halide, a strontium or barium halide, and, optionally, a gallium or aluminum oxide, to effect improved brightness.

REFERENCES:
patent: 3758486 (1973-09-01), Ropp
patent: 4024069 (1977-05-01), Larach
patent: 4225653 (1980-09-01), Brixner
patent: 4387141 (1983-06-01), Patten
Brixner et al. "J. Electrochem Soc.", 130(12), 1983, pp. 2435-2443.

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