New correlation between PTTL and POSL components in Al2O3:C

We describe newly found correlations between thermoluminescence (TL), pulsed optically stimulated luminescence (POSL), and phototransfer TL (PTTL) signals in Al2O3:C. A set of Al2O3:C samples were characterized for their OSL curve shapes, as well TL/POSL integrals correlated with PTTL behavior. POSL was used to separate the contribution from fast UV emission (F+ centers) slow blue (F components The results show that high exhibit shapes a peak at higher temperatures curves decay slower compared low PTTL. ratio integral components, UV/B ratio, inversely correlate discuss possible causes our observations outline limitations commonly models explain data. These add yet another piece puzzle mechanisms