Abstracts Book - IMRC 2018

• SE3-P008
THERMOLUMINESCENCE PROPERTIES OF MAGNESIUM OXIDE
DOPED WITH DYSPROSIUM AND LITHIUM OBTAINED BY
SOLUTION COMBUSTION SYNTHESIS
Gustavo Eduardo Sanchez Ortega 1 , Victor Ramón Orante Barrón 1 , Catalina Cruz Vázquez 1 ,
Rodolfo Bernal Hernández 2
1 Universidad de Sonora, Departamento de Investigación en Polímeros y Materiales, Mexico.
2 Universidad de Sonora, Departamento de Investigación en Física, Mexico.
Glycine molecule has a carboxylic acid group at one end and an amine group at
the other end, both of which can participate in the complexation of metal ions.
This “zwitterionic” character allows effective complexation with metal cations of
different ionic size [1]. In the accordance with the above, it was possible to obtain
magnesium oxide doped with trivalent dysprosium and lithium phosphor, for
the very first time, by solution combustion synthesis (SCS) using glycine as fuel,
in which a redox reaction at 500 °C was accomplished. Thermoluminescence
glow curve obtained after exposure to beta radiation of these samples,
displayed at least three maxima located at ~ 135 °C, ~ 227 °C, and ~ 317 °C.
Results experiments such as dose response and fading showed that annealed
MgO: Dy 3+ , Li + powder obtained by SCS is a promising material for radiation
dosimetry applications. Complementarily, structural characterization such as
scanning electron microscopy and X-ray diffraction is presented.
References
Chick L. A., Pederson L. R., Maupin G. D., Bates J. L., Thomas L. E., Exarhos G. J.,
1990. Glycine-nitrate combustion synthesis of oxide ceramic powders. Mater.
Lett. 10, 7
Keywords: Thermoluminescence, Magnesium oxide, Solution combustion synthesis
Presenting authors email: gustavosanchez192@live.com