Synthesis and thermoluminescence of a spinel-type oxide exposed to beta-particle irradiation

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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.

Original languageEnglish
Title of host publicationMaterials for Nuclear Applications
EditorsAngeles del Consuelo Diaz Sanchez, Eddie Lopez Honorato
PublisherMaterials Research Society
Pages38-42
Number of pages5
ISBN (Electronic)9781510826243
DOIs
StatePublished - 2015
Event23rd International Materials Research Congress, IMRC 2014 - Cancun, Mexico
Duration: 17 Aug 201421 Aug 2014

Publication series

NameMaterials Research Society Symposium Proceedings
Volume1769
ISSN (Print)0272-9172

Conference

Conference23rd International Materials Research Congress, IMRC 2014
Country/TerritoryMexico
CityCancun
Period17/08/1421/08/14

Bibliographical note

Publisher Copyright:
© 2015 Materials Research Society.

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