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CRISTAL DE SCINTILLATION COMPRENANT UN HALOGÉNURE DE SODIUM CODOPÉ ET APPAREIL DE DÉTECTION DE RAYONNEMENT COMPRENANT LE CRISTAL DE SCINTILLATION
CRISTAL DE SCINTILLATION COMPRENANT UN HALOGÉNURE DE SODIUM CODOPÉ ET APPAREIL DE DÉTECTION DE RAYONNEMENT COMPRENANT LE CRISTAL DE SCINTILLATION
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摘要
A scintillation crystal can include a sodium halide that is co-doped with thallium and another element. In an embodiment, the scintillation crystal can include NaX:Tl, Me, wherein X represents a halogen, and Me represents a Group 1 element, a Group 2 element, a rare earth element, or any combination thereof. In a particular embodiment, the scintillation crystal has a property including, for radiation in a range of 300 nm to 700 nm, an emission maximum at a wavelength no greater than 430 nm; or an energy resolution less than 6.4% when measured at 662 keV, 22° C., and an integration time of 1 microsecond. In another embodiment, the co-dopant can be Sr or Ca. The scintillation crystal can have lower energy resolution, better proportionality, a shorter pulse decay time, or any combination thereof as compared to the sodium halide that is doped with only thallium.
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