Ordered corundum magnesium tantalum niobium oxide x-ray intensif

Details Ordered corundum magnesium tantalum niobium oxide x-ray intensif Ordered corundum magnesium tantalum niobium oxide x-ray intensif

1990-11-01

1992-07-21

Cooper, Jack

Stock material or miscellaneous articles

Composite

Of inorganic material

2504831, 2523014R, C09K 1167

Patent

active

051321920

ABSTRACT:
An x-ray intensifying screen is disclosed containing magnesium tantalum niobium oxide as a phosphor in an ordered corundum crystalline form. In addition, small amounts of at least one alkali metal other than lithium can be present. Potassium, rubidium and cesium are each capable of increasing luminescence. The x-ray intensifying screens are useful in radiographic applications where it is important to reduce subject exposure to x-rays and also to create clear, sharp images.

REFERENCES:
patent: 3778615 (1973-12-01), Luckey
patent: 3829700 (1974-08-01), Buchanan et al.
patent: 4024069 (1977-05-01), Larach
patent: 4068129 (1978-01-01), Rabatin
patent: 4225653 (1980-09-01), Brixner
patent: 4259588 (1981-03-01), Luckey et al.
patent: 4507560 (1985-03-01), Mathers et al.
patent: 4790024 (1990-11-01), Reddy
H. W. Leverenz An Introduction to Luminescence of Solids, John Wiley & Sons, New York, 1950, p. 165.
Kroger Some Aspects of the Luminescence of Solids, Elsevier Publishing, New York, 1948, pp. 77 & 78.
G. Blasse, G. J. Dirksen & L. H. Brixner, "Luminescence Properties of Uranium-Activated Lanthanum Halotungstate (La.sub.3 WO.sub.6 Cl.sub.3 -U)", Journal of Solid State Chemistry, 44 , 162-168 (1982).
C. C. Torardi, C. Page, L. H. Brixner, G. Blasse & G. J. Dirksen, "Structure and Luminescence of Some CsLnW.sub.2 O.sub.8 Compounds", Journal of Solid State Chemistry, 69, 1987, pp. 171-178.
Blasse, G. Bokkers, G. J. Dirksen & L. H. Brixner, "Luminescence in Lanthanum Chlorotungstate (LaWO.sub.4 Cl)", Journal of Solid State Chemistry, 46, 1983, pp. 215-221.
G. Blasse, G. J. Dirksen & L. H. Brixner, "Luminescence in Trilanthanumtrichlorotungstate (La.sub.3 WO.sub.6 Cl.sub.3)", Journal of Solid State Chemistry, 46, 1983, pp. 294-305.
Journal of Solid State Chemistry 3, 69-74 (1971) entitled "Luminescence in Some Tantalate Host Lattices", G. Blasse & A. Bril.
Journal of Solid State Chemistry 72, 72-79 (1988) entitled "The Influence of Crystal Structure on the Luminescence of Tantalates and Niobates" G. Blasse.
Journal of Solid State Chemistry 19, 221-226 (1976) entitled "Luminescence in the System Mg.sub.4 Ta.sub.2-x Nb.sub.x O.sub.9, " A. J. H. Macke.

Affiliated with

Also associated with

Rating

Ordered corundum magnesium tantalum niobium oxide x-ray intensif does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Ordered corundum magnesium tantalum niobium oxide x-ray intensif, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Ordered corundum magnesium tantalum niobium oxide x-ray intensif will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-842472