Synthesis and thermoluminescence studies of γ-irradiated Dy3+ doped SrGd2O4 phosphor
Source abstract
Abstract
Abstract Dy 3+ doped SrGd 2 O 4 phosphors were synthesized via homogeneous precipitation cum auto-combustion method for the first time. Orthorhombic phase formation and granular morphology of SrGd 2 O 4 : Dy 3+ samples were investigated through X-ray diffraction (XRD) and microscopic studies. Thermoluminescence (TL) characteristics of SrGd 2 O 4 : Dy 3+ phosphors were taken after exposure of 60 Co γ-rays. The TL glow curve of as-prepared phosphors was well-resolved into five peaks 114 °C, 161 °C, 198 °C, 248 °C, and 293 °C by using computerized glow curve deconvolution program. The effect of impurity (Dy 3+ ) contents and heating rates for the TL glow curves were also studied. The linear behaviour of as-formed SrGd 2 O 4 : Dy 3+ samples are observed within a wide range of dose of 80 Gy–2 kGy. Fading characteristics of SrGd 2 O 4 : Dy 3+ phosphor was studied over the duration of 30 days. A comparative study was done to estimate different trapping parameters by employing Chen’s peak shape method and CGCD simulation of TL glow curves.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Luminescence Properties of Advanced Materials · Glass properties and applications · Radiation Detection and Scintillator Technologies
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
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