Article
Thermoluminescence properties of undoped and Dy 3+ doped ZrO 2 nanophosphor under ß-ray irradiation
Fecha
2008Registro en:
10.1166/jnn.2008.021
Autor
Rodriguez, R.A.
De La Rosa, E.
Romero, V.H.
Melendrez, R.
Sales, P.
Diaz-Torres, L.A.
Barboza-Flores, M.
Institución
Resumen
The thermoluminescence (TL) of undoped and Dy 3+ doped ZrO 2 nanocrystals under β-ray irradiation is reported. The TL glow curves are the result of the overlapping of four TL peaks produced partly by the intrinsic defect of highly asymmetrical monoclinic structure and partly due to defects produced during the synthesis process. The introduction of dopant ions induces changes in the glow curve due to the enhancement of high temperature peaks intensity. The results show that both undoped and doped ZrO 2 nanocrystalline phosphor present good TL efficiency as well as good dose response which qualify them as a potential β-ray dosimeter. Copyright © 2008 American Scientific Publishers ALL rights reserved.