Optically stimulated luminescence study in rare earth doped SrBPO₅

Optically stimulated luminescence (OSL) was studied in rare earth doped SrBPO₅ for the possible applications in radiation dosimetry using optically stimulated luminescence. The study shows that the sensitivity of the Eu doped SrBPO₅ shows good OSL and the sensitivity is comparable to that of Al₂O₃:C. It is observed that annealing has a profound effect on the OSL sensitivity. Slowly cooled Eu doped sample shows highest sensitivity and is 77% compared to that Al₂O₃:C whereas lowest sensitivity is observed in the quenched sample. Other properties like good linearity and low fading will make this phosphor suitable for the applications in radiation dosimetry using OSL.