Abstract
This work reports on thermoluminescence (TL) of an undoped SrSiO3/SiO2 phosphor, synthesized by hydrothermal method. The crystal structures, morphology, and Thermoluminescence studies were carried out using X-ray diffraction (XRD) spectrometer, field emission scanning electron microscope (HRSEM), and TL reader respectively. The XRD patterns confirmed a mixture of both monoclinic and hexagonal phases of SrSiO3 and SiO2 phosphors respectively. SEM micrographs revealed irregular spherical nanoparticles with agglomeration. Energy dispersive X-ray spectroscopy (EDS) analysis confirmed the presence of the elements Sr, Si and O in the SrSiO3/SiO2 phosphor. Following beta irradiation, TL measurements revealed a single broad peak at 110.5 °C which was associated to a trap having an average activation energy of 0.73 eV. A linear behaviour of dose response in a range of 0.1 Gy–1.8 kGy, the observed good reproducibility and fading supported the SrSiO3/SiO2 phosphor as a promising candidate for dosimetric applications.
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