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Synthesis and Thermoluminescence of a Spinel-Type Oxide Exposed to Beta-Particle Irradiation

Published online by Cambridge University Press:  13 February 2015

Francisco Brown ,
Tomasa C. Hernandez-Perez ,
Iliana C. Muñoz ,
Victor E. Alvarez-Montaño ,
Catalina Cruz-Vazquez ,
Rodolfo Bernal  and
Alma R. García-Haro
Francisco Brown*
Affiliation:
Departamento de Investigación en Polímeros y Materiales, Universidad de Sonora, Rosales y Blvd. Luis Encinas J., Sonora, 83000, México.
Tomasa C. Hernandez-Perez
Affiliation:
Departamento de Investigación en Polímeros y Materiales, Universidad de Sonora, Rosales y Blvd. Luis Encinas J., Sonora, 83000, México.
Iliana C. Muñoz
Affiliation:
Departamento de Ciencias Químico-Biológicas, Universidad de Sonora, Rosales y Blvd. Luis Encinas J., Sonora, 83000, México.
Victor E. Alvarez-Montaño
Affiliation:
Departamento de Investigación en Polímeros y Materiales, Universidad de Sonora, Rosales y Blvd. Luis Encinas J., Sonora, 83000, México.
Catalina Cruz-Vazquez
Affiliation:
Departamento de Investigación en Polímeros y Materiales, Universidad de Sonora, Rosales y Blvd. Luis Encinas J., Sonora, 83000, México.
Rodolfo Bernal
Affiliation:
Departamento de Investigación en Física, Universidad de Sonora, Rosales y Blvd. Luis Encinas J., Sonora, 83000, México.
Alma R. García-Haro
Affiliation:
Departamento de Ciencias Químico-Biológicas, Universidad de Sonora, Rosales y Blvd. Luis Encinas J., Sonora, 83000, México.
*
*fbrown@guaymas.uson.mx
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Abstract

Currently, the research team is systematically studying the oxide compounds present in the ternary system In2O3-TiO2-MgO in order to analyze its thermoluminescent (TL) response. The oxide Mg1.5InTi0.5O4 present in this system was synthesized by a solid state reaction at 1350 °C in air. The X-ray powder diffraction pattern showed a spinel-type structure for this compound. In this work, this spinel, as well as its TL properties when exposed to beta particles, are being reported for the first time. The glow curve is simple and wide with a TL maximum located at 203 °C at 21.33 Gy. The peak shows a shift to lower temperatures and it increases its intensity, as the irradiation dose increases. The lineal behavior was observed between 10.66 to 341 Gy, and no saturation signs were observed. The relative sensitivity variation was 2.7% and standard deviation after ten consecutive irradiation - TL readout cycles was 1 %. The minimum detectable dose was 5.65 Gy for this spinel-type oxide [3]. These results suggest the possible application of Mg1.5InTi0.5O4 in dosimetry.

Keywords

chemical synthesisMgTi
Type
Articles
Information
MRS Online Proceedings Library (OPL) , Volume 1769: Symposium 6E – Materials for Nuclear Applications , 2015 , IMRC 2014 6E-17
Copyright
Copyright © Materials Research Society 2015 

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References

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