This study investigates the dosimetric properties of alumina-based phosphor doped with dispersium impurity, evaluating its potential as highly sensitive thermoluminescent material for high-dose applications. All samples were synthesized using the sol-gel method. The highest sensitivity to gamma radiation from a 60Co source was observed in the sample with 0.5 mol% dispersium doping. The structural and morphological properties of the particles were examined using X-ray diffraction (XRD) and scanning electron microscopy (SEM), while elemental analysis of the α-alumina sample was analyzed using energy-dispersive X-ray spectroscopy (EDS). The kinetic parameters of the thermoluminescence (TL) glow curve were extracted through computer-based curve fitting. The TL glow curve exhibited two overlapping peaks at approximately 394 K and 449 K. Additional analyses of the glow curve characteristics, fading characteristics, and dose-response linearity demonstrated the strong potential of this nanophosphor as a high-sensitivity TL dosimeter suitable for high-dose radiation measurements.
Bagheri,M. , Sadeghi,E. and Zahedifar,M. (2026). Synthesis and study of thermoluminescence and photoluminescence properties of dysprosium -doped alumina nanoparticles under gamma irradiation. Iranian Journal of Physics Research, 25(4), 405-413. doi: 10.47176/ijpr.25.4.22058
MLA
Bagheri,M. , , Sadeghi,E. , and Zahedifar,M. . "Synthesis and study of thermoluminescence and photoluminescence properties of dysprosium -doped alumina nanoparticles under gamma irradiation", Iranian Journal of Physics Research, 25, 4, 2026, 405-413. doi: 10.47176/ijpr.25.4.22058
HARVARD
Bagheri M., Sadeghi E., Zahedifar M. (2026). 'Synthesis and study of thermoluminescence and photoluminescence properties of dysprosium -doped alumina nanoparticles under gamma irradiation', Iranian Journal of Physics Research, 25(4), pp. 405-413. doi: 10.47176/ijpr.25.4.22058
CHICAGO
M. Bagheri, E. Sadeghi and M. Zahedifar, "Synthesis and study of thermoluminescence and photoluminescence properties of dysprosium -doped alumina nanoparticles under gamma irradiation," Iranian Journal of Physics Research, 25 4 (2026): 405-413, doi: 10.47176/ijpr.25.4.22058
VANCOUVER
Bagheri M., Sadeghi E., Zahedifar M. Synthesis and study of thermoluminescence and photoluminescence properties of dysprosium -doped alumina nanoparticles under gamma irradiation. Dear user; Recently we have changed our software to Sinaweb. If you had already registered with the old site, you may use the same USERNAME but you need to change your password. To do so at the first use, please choose, 2026; 25(4): 405-413. doi: 10.47176/ijpr.25.4.22058