E. V. D. van Loef, P. Dorenbos and C. W. E. van Eijk, K. Krämer and H. U. Güdel
High-energy-resolution scintillator: Ce³⁺ activated LaCl₃
Appl. Phys. Lett. 77, 1467-1468 (2000)                 

Abstract: The scintillation properties of LaCl₃ doped with 10% Ce³⁺ are presented. Under optical and gamma ray excitation, Ce³⁺ emission is observed to peak at 330 and 352 nm. The scintillation light output is 46000+/-1000 photons/MeV at 662 keV. Forty percent is emitted with a decay time of 26 ns, 30% with 210 ns, and 30% with about 1000 ns. An energy resolution (full width at half maximum over the peak position) of 3.3+/-0.3% was observed for the 662 keV full absorption peak.