Synthesis and thermoluminescence of scandium-titanium based oxide mixture

Iliana C. Muñoz, Epifanio Cruz-Zaragoza, Francisco Brown, María A. Landavazo-Santos, Victor E. Alvarez-Montaño

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review


Recently, the research team synthesized some scandium- and titanium-based oxide compounds, in order to analyze their thermoluminescent (TL) response [1-2]. The oxides mixture Sc2TiO5:Eu2Ti2O7:Sc2O3 was synthesized in equilibrium phase by solid state reaction at 1100 °C / 48 h. The structural characterization was performed by XRD and SEM. The TL properties of this oxide mixture were examined after exposing it to gamma radiation from a 60Co source. The glow curve showed two main glow peaks at 151 °C and 260 °C, yet the curve shape looks quite complex, revealing that it is composed by overlapped individual TL peaks, which was confirmed with the T preheat method performed [3]. The linear dose-response between 150 to 600 Gy was obtained, followed by a slow saturation stage. The intensity of the glow curves increases as the radiation dose increases, and their maxima remain at the same temperature values, which indicates that the TL phenomenon follows first-order kinetics [4], After ten irradiation-TL readout cycles at 500 Gy, good stability (SD 2.02 %) between TL integrated response and the exposure dose was found. It is concluded that Sc2TiO5:Eu2Ti2O7:Sc2O3 is a promising material to use as high-dose dosimeter.

Original languageEnglish
Title of host publicationMaterials for Nuclear Applications
EditorsAngeles del Consuelo Diaz Sanchez, Eddie Lopez Honorato
PublisherMaterials Research Society
Number of pages6
ISBN (Electronic)9781510826243
StatePublished - 2015
Event23rd International Materials Research Congress, IMRC 2014 - Cancun, Mexico
Duration: 17 Aug 201421 Aug 2014

Publication series

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


Conference23rd International Materials Research Congress, IMRC 2014

Bibliographical note

Publisher Copyright:
© 2015 Materials Research Society.


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