首页|Luminescence and dose-rate response properties of Pr-doped Bi4Ge3O12 scintillators
Luminescence and dose-rate response properties of Pr-doped Bi4Ge3O12 scintillators
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NSTL
Elsevier
In recent years, there has been increasing demand for a scintillator showing near-infrared (NIR) luminescence owing to the potential for radiation monitoring applications. In this study, Pr-doped Bi4Ge3O12 (BGO) single crystals were prepared by the floating zone method to explore candidates as a NIR scintillator, and the luminescence and dose-rate response properties of Pr-doped BGO were studied. Both photoluminescence and scintillation peaks appeared at 400-600 nm due to Bi3+, and sharp emission peaks by Pr3+ were also confirmed at 480-1100 nm, with consistent decay times. Further, to investigate performance as a scintillation detector, a linearity of the response to X-ray exposure dose rate was evaluated. Among the samples, the 0.5% Pr-doped BGO showed the highest sensitivity with the lowest detection limit of 0.006 Gy/h.
ScintillatorPhotoluminescenceFloating zone methodDose-rate responseAfterglowRAY-INDUCED LUMINESCENCERARE-EARTH IONSPHOTOLUMINESCENCEEMISSIONCRYSTALSBGO
NSTL
Elsevier
