Abstracts 2001

Abstract of Publication No. 400

E. V. D. van Loef, P. Dorenbos, C. W. E. van Eijk, K. Krämer and H. U. Güdel
High-energy-resolution scintillator: Ce3+ activated LaBr3
Appl. Phys. Lett. 79, 1573-1575 (2001)      Full Text (PDF)      DOI-Link     

Abstract: The scintillation properties of LaBr3 doped with 0.5% Ce3+ are presented. Under optical and gamma ray excitation, Ce3+ emission is observed to peak at 356 and 387 nm. The scintillation light output is 610005000 photons/MeV at 662 keV. More than 90% is emitted with a decay time of 35 ns. An energy resolution (full width at half maximum over the peak position) of 2.850.05% was observed for the 662 keV full absorption peak. A time resolution of 385 ps was obtained using BaF2 as second scintillator and gamma rays of 60Co.

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