Thermoluminescence characterization of Tb3+ and Ce3+ doped nanocrystalline Y3Al5O12 exposed to X- and β-ray irradiation |
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| Affiliation: | 1. Centro de Investigaciones en Óptica A.C., A.P. 1-948, León, Gto. 37150, Mexico;2. Instituto Mexicano del Petróleo, Eje Central Lázaro Cárdenas 152, C.P. 07730, Mexico, D.F.;3. Centro de Investigación en F??sica, Universidad de Sonora, P.O. Box 5-088, Hermosillo, Sonora 83190, Mexico;1. Ural Federal University, 19, Mira Street, 620002 Yekaterinburg, Russia;2. Institute of Physics, University of Tartu, 1, W. Ostwaldi Street, 50411 Tartu, Estonia;1. Radiation Laboratory, Institute of Industrial Ecology, UB RAS, Ekaterinburg, Russia;2. Department of Experimental Physics, Ural Federal University, Ekaterinburg, Russia;1. Ural Federal University, Ekaterinburg, Russia;2. Institute of Solid State Chemistry, Ural Branch of RAS, Ekaterinburg, Russia;1. Department of Physics, GVP College of Engineering, Visakhapatnam 530 048, India;2. School of Physics, University of Hyderabad, Hyderabad 500 046, India;3. Department of Physics, Sri Venkateswara University, Tirupati 517 502, India |
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| Abstract: | The thermoluminescence (TL) characterization of undoped, as well as Ce3+ and Tb3+ doped Y3Al5O12 (YAG) nanocrystals, exposed to X- and β-radiation was performed. The samples were prepared by precipitation process and the crystalline structure was obtained after annealing at 1150 °C. The TL signal of the undoped samples indicates a high sensitivity to X- and β-ray irradiation. The introduction of the dopants ions induced changes in the TL glow curve structure and the kinetic properties modifying the radiative recombination efficiency. The TL results suggest that both undoped and doped YAG nanocrystalline phosphor present a good potential for X- and β-ray irradiation dosimeter applications. |
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