Investigations of thermoluminescence characteristics of SrAlBO 4 :Eu 3+ Phosphors irradiated with gamma rays and carbon ion beam.

A series of SrAlBO 4 : Eu phosphors doped with different concentrations of Eu (0.1 0.3, 0.5, 0.7, 1.0 mol%) have been synthesized via solid state diffusion method and their thermoluminescence properties were analyzed for gamma and carbon ion irradiation. The phase purity, morphological properties, vibrational features and thermal stability of the prepared sample were analyzed by X-Ray diffraction (XRD) and scanning electron microscope (SEM), Fourier transform infrared (FT-IR) and Thermogravimetric/Differential Thermal Analyzer (TG/DTA) techniques, respectively. The TL properties of the proposed materials shows broad dosimetric bands, peaking at 202 o C for 0.12 kGy gamma irradiation. The highest TL intensity has obtained for 0.7 mol% concentration of Eu ions under Gamma irradiation. Furthermore, the glow curve of the proposed materials shows a broad emission band, centered at 148 °C under carbon ion beam irradiation and exhibits the highest emission intensity for 0.1 mol% Eu concentration. In addition, the dosimetric trapping parameters of the prepared samples such as symmetry factor, order of kinetics, activation energy, frequency factor have been analyzed using various methods such as chen's peak shape method, initial growth method, Ilich method. The obtained results of the samples show the potential for dosimetric application.