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US 11,693,133 B2Granted
CsI(T1) scintillator crystal including antiomy and other multi valance cations to reduce afterglow, and a radiation detection apparatus including the scintillation crystal
AssigneeLuxium Solutions, LLC
InventorsFang Meng, Peter R. Menge
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Abstract
A scintillation crystal can include a cesium halide that is co-doped with thallium and another element. In an embodiment, the scintillation crystal can include CsX:Tl, Me, where X represents a halogen, and Me represents a Group 5A element. In a particular embodiment, the scintillation crystal may have a cesium iodide host material, a first dopant including a thallium cation, and a second dopant including an antimony cation.
Claims20
A scintillator crystal comprising:
- a cesium iodide host material;
- a first dopant comprising thallium;
- a second dopant comprising antimony, wherein the scintillator crystal comprises between 1×10−7 mol % and 1×10−2 mol % antimony;
- and
- a third dopant comprising bismuth, wherein the scintillator crystal has a reduced afterglow.
2 more elements
A scintillator crystal comprising:
- a cesium iodide host material;
- a first dopant comprising thallium;
- a second dopant comprising a group VA element, wherein the scintillator crystal comprises no greater than 0.1 mol %;
- of the second dopant;
- and
- a third dopant comprising bismuth.
3 more elements
A scintillator crystal formed by a growth process, comprising:
- providing a cesium iodide host material;
- doping with thallium, wherein a molar concentration of said thallium is less than 10%;
- codoping with antimony, wherein a concentration of the second dopant in the melt is greater than zero and no greater than 0.01 mol %;
- and
- codoping with bismuth to produce a scintillator crystal with a reduced afterglow.
2 more elements
Dependencies are inferred from the claim text.