Trapping parameters and kinetics in CaS: Ce,Cl luminophor

By means of thermally stimulated luminescence (TL) technique the trapping parameters and order of the kinetics in TL process in the CaS: Ce, Cl luminophor are investigated. In the temperature range 300–450 K, two glow-peaks are observed showing the presence of two group of traps in this luminophor whose trap-depths are 0.66 ± 0.16 eV and 1.13 ± 0.11 eV respectively as determined by three different methods. The order of the kinetics in TL processes in this luminophor comes out to be first order for the first group and second-order for the second group of traps.