Scintillator material based on rare earth with a reduced nuclear background
AssigneeSaint-Gobain Cristaux Et Detecteurs
InventorAlain Iltis
Life of this patent
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Abstract
Inorganic scintillator material of formula AnLnpX(3p+n) in which has a very low nuclear background noise and is particularly suitable as a detector scintillator for coating weight or thickness measurements, in the fields of nuclear medicine, physics, chemistry and oil exploration, and for the detection of dangerous or illicit materials.
Claims38
An inorganic scintillator material of formula AnLnpX(3p+n) wherein Ln represents one or more rare earths, X represents one or more halogen atoms selected from the group consisting of F, Cl, Br and I, and A represents one or more alkali metals selected from the group consisting of K, Li, Na, Rb-and Cs, 0≦n ≦2p, and p is greater than or equal to 1, wherein the content of daughter elements of uranium and thorium in the material is in an amount which results in activity resulting from alpha radiation from these elements to be less than 0.7 Bq/cc.
Dependencies are inferred from the claim text.