VUV excited emission pulse shapes of LuAlO3:Ce

The scintillation mechanism in LuAlO3:Ce is in the main based on radiative recombination of lectron-hole pairs via Ce3+. Although there are favorable conditions for a nonradiative energy transfer to Ce3+ from excitons responsible for host emission, in fact this process is insignificant. Results of spectroscopic experiments and detailed analysis of emission pulse shapes are presented to support this statement.