Co-doping of CeBr3 scintillator detectors for energy resolution enhancement
2014
Abstract CeBr 3 gamma-ray spectrometers are preferable to LaBr 3 :Ce ones for low-count-rate experiments because of their low intrinsic activity and consequently increased detection sensitivity. A drawback of CeBr 3 is a nonoptimum energy resolution, i.e. 4% at 662 keV. Here we demonstrate that aliovalent co-doping techniques are effective to enhance the CeBr 3 energy resolution to at least 3%. Such an enhancement is achieved because of a more proportional energy response of the scintillation.
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