Effect of gamma irradiation on thermoluminescence and fracto-mechanoluminescence properties of SrMgAl10O17:Eu2+ phosphor

SrMgAl10O17:Eu2+ phosphor has been synthesized by combustion method using urea as a fuel. Thermoluminescence (TL) and mechanoluminescence (ML) properties of synthesized phosphors under gamma irradiation were reported and discussed in this paper. The structural and morphological studies were done using X-ray diffraction (XRD) and scanning electron microscopy (SEM). Photoluminescence emission spectrum is obtained at 460 nm. Thermoluminescence glow curves of synthesized phosphor show a broad peak, which has been deconvoluted into three peaks and activation energies were calculated using peak shape method. Total mechanoluminescence (ML) intensity increases linearly with gamma doses.