Wavelength-Resolved Photoluminescence and Cathodoluminescence Decay Times of LSO:Ce Scintillator CO-Doped with Lithium and Scandium

We study the luminescence decay times of Ce3+: Lu2SiO5 scintillator, co-doped with Sc3+ and Li+ ions, under direct photoexcitation Ce3+ ions at 337 nm excitation by a pulsed electron beam energies 100 – 300 keV. The cathodoluminescence (CL) photoluminescence (PL) studied sample are equal within experimental error. Two emission bands found: in range 370 480 (“high-energy band”) 500 570 (“low-energy band”). highenergy band has ∼40 ns. low-energy maximum time ∼60 ns 545 nm. observed results show that transport stage Li:Sc:Ce:Lu2SiO5 scintillation mechanism is not affected high negative space charge density electronic excitations provided high-power beam.