Radiation storage phosphor and applications
AssigneeDosimetry & Imaging Pty Ltd.
InventorsHans Riesen, Wieslaw Alex Kaczmarek
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Abstract
The present invention relates to a photoexcitable storage phosphor which comprises at least one rare earth element in the trivalent +3 oxidation state and wherein upon irradiation by X-ray, γ-ray or UV radiation the trivalent +3 oxidation state is reduced to divalent +2 oxidation state. The present invention also relates to a dosimeter, radiation image storage panel comprising the phosphor of the present invention and in dosimetry applications for applications including scientific, medical and other imaging applications. The present invention also relates to a process for making a photoexcitable storage phosphor and a process for recording and reproducing an image.
Claims24
A process for making a photoexcitable storage phosphor comprising combining a first solution and a second solution to form a reaction mixture, wherein the first solution comprises a barium halide and a rare earth halide, wherein the halides are independently selected from the group consisting of chloride, bromide and iodide, and the second solution is an aqueous solution comprising a fluoride species, wherein the reaction mixture precipitates to form submicron-sized crystals.
Dependencies are inferred from the claim text.