Thermoluminescence properties, trap parameter analysis and personal dosimetry applications of Sr₂Al₂SiO₇: Dy³⁺ phosphors

The present paper explores the thermoluminescence characteristics of Sr₂Al₂SiO₇:Dy³⁺ phosphors prepared via combustion method. The studies concentrate on the application of samples in the field of dosimetry. X-ray diffraction (XRD) was done to confirm the formation of phosphors. Thermoluminescence studies were conducted after the irradiation of phosphors with γ doses from 3 Gy to 5 kGy. The glow curves were deconvoluted via Computerized deconvolution method (CGCD) and the kinetic parameters were calculated. And the linear dose-response from 3 Gy to 250 Gy doses suggests the suitability of Sr₂Al₂SiO₇:Dy³⁺ phosphors in moderate dosimetry applications. (author)