Abstract

Thermostimulated luminescence (TSL) phosphors based onCaSO4:Dy, Zn and CaSO4:Tm, Cd have been studied. These phosphors show anincrease in the 220 °C TSL peak intensity by a factor of about 50%compared to CaSO4:Dy, as there is no change in the position of the peaktemperature. Their dose response characteristics to 60Co gamma radiationis similar to that of CaSO4:Dy. However, there are very minor changes intheir photoluminescence intensity and excitation spectra compared with thoseof CaSO4:Dy.

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