Synthesis and thermoluminescence of new ZnO phosphors
Por:
Cruz-Vázquez C., Borbón-Nuñez H.A., Orante-Barrón V.R., Burruel-Ibarra S.E., Castaño V.M., Bernal R.
Publicada:
1 ene 2010
Resumen:
In this work, the synthesis and thermoluminescence properties of new ZnO phosphors obtained by a chemical method are reported. Some samples were exposed to beta particle irradiation for doses ranging from 10.0 up to 6,400 Gy, and it was found that the thermoluminescence response as a function of dose is linear for doses below 200 Gy, and sublinear with no saturation clouds for greater doses. A broad shape glow curve with maximum located above 230°C, that shifts to lower temperatures as dose increases, indicating that second order kinetics thermoluminescence processes are involved. The lower detection limit was estimated to be 13 Gy. We conclude that the phosphors under study are promising to develop dosimeters for high dose radiation dosimetry. © Materials Research Society.
Filiaciones:
Cruz-Vázquez C.:
Departamento de Investigación en Polímeros Y Materiales, Universidad de Sonora, Apartado Postal 130, Hermosillo, Sonora 83000, Mexico
Borbón-Nuñez H.A.:
Departamento de Investigación en Polímeros Y Materiales, Universidad de Sonora, Apartado Postal 130, Hermosillo, Sonora 83000, Mexico
Orante-Barrón V.R.:
Departamento de Investigación en Polímeros Y Materiales, Universidad de Sonora, Apartado Postal 130, Hermosillo, Sonora 83000, Mexico
Burruel-Ibarra S.E.:
Departamento de Investigación en Polímeros Y Materiales, Universidad de Sonora, Apartado Postal 130, Hermosillo, Sonora 83000, Mexico
Castaño V.M.:
Centro de Física Aplicada Y Tecnología Avanzada, Instituto de Física, Universidad Nacional Autónoma de México, Apartado Postal 1-1010, Querétaro, Querétaro 76000, Mexico
Bernal R.:
Departamento de Investigación en Física, Universidad de Sonora, Apartado Postal 5-088, Hermosillo, Sonora 83190, Mexico
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