Combustion Synthesis and Thermo Luminescence in g-Irradiated Borate phosphors Activated with Terbium(III)

Abstract

The crystalline sample of NaSrBO₃ and NaSr₄(BO₃)₃ was successfully synthesized by a combustion method and for use of these material in a radiation dosimetry. Its thermo luminescence characteristics has also been studied. Formation of the compound was confirmed by studying the X-ray diffraction pattern. The thermo luminescence glow curve of the NaSrBO₃ doped with 0.01 mol of Tb has a simple structure with a single peak at 150 ºC, where as NaSr₄(BO₃)₃ doped with 0.01 mol of Tb give a weak peak at 187 ºC and prominent peak at 314 ºC. Thermo luminescence sensitivity of the both the phosphors for g-rays is found as sensitive as that of LiF : Mg, Cu, P. Kinetic parameters and dose response of these materials also reported.