Passivation of metal halide scintillators
AssigneeSiemens Medical Solutions USA, Inc.
InventorsAlexander Andrew Carey, Peter Carl Cohen, Mark S. Andreaco
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Abstract
Disclosed herein is a material, comprising a first metal halide that is operative to function as a scintillator; where the first metal halide excludes cesium iodide (ScI), strontium iodide (SrI2), cesium bromide (CsBr), thallium doped cesium iodide (CsI:Tl), europium doped strontium iodide (SrI2:Eu), europium doped barium iodide (BaI2;EU), cerium doped strontium iodide (SrI2:Ce), cerium doped barium iodide (BaI2:Ce), cerium doped lanthanum bromide (LaBr3:Ce), and cerium doped lutetium iodide (LuI3:Ce); and a surface layer comprising a second metal halide that is disposed on a surface of the first metal halide; where the second metal halide has a lower water solubility than the first metal halide.
Claims21
A material, comprising:
- a first metal halide that is operative to function as a scintillator;
- where the first metal halide excludes cesium iodide (CsI), strontium iodide (SrI2), cesium bromide (CsBr), thallium doped cesium iodide (CsI:Tl), europium doped strontium iodide (SrI2:Eu), europium doped barium iodide (BaI2:Eu), cerium doped strontium iodide (SrI2:Ce), cerium doped barium iodide (BaI2:Ce), cerium doped lanthanum bromide (LaBr3:Ce), and cerium doped lutetium iodide (LuI3:Ce);
- and
- a surface layer comprising a second metal halide that is disposed on a surface of the first metal halide;
- where the second metal halide has a lower water solubility than the first metal halide.
A method comprising:
- disposing on a surface of a first metal halide a layer comprising a second metal halide;
- where the first metal halide is a scintillator and excludes cesium iodide (CsI), strontium iodide (SrI2), cesium bromide (CsBr), thallium doped cesium iodide (CsI:Tl), europium doped strontium iodide (SrI2:Eu), europium doped barium iodide (BaI2:Eu), cerium doped strontium iodide (SrI2:Ce), cerium doped barium iodide (BaI2:Ce), cerium doped lanthanum bromide (LaBr3:Ce), and cerium doped lutetium iodide (LuI3:Ce);
- and where the second metal halide has a lower water solubility than the first metal halide.
Dependencies are inferred from the claim text.