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...