Nuclear Technology and Energy

Thermoluminescence properties study of magnesium oxide doped with lanthanides and lithium under gamma irradiation for dosimetric applications

https://doi.org/10.48308/nucte.2022.100639
Volume 1, Issue 2 - Serial Number 2
Summer 2022
Pages 1-12
Nuclear Technology and Energy

Authors

Khadijeh Rezaee Ebrahim Saraee 1
مهدی علیخانپور 2
کوروش بازاری جامخانه 2

1 University of Isfahan

2 دانشگاه اصفهان

Abstract
The goal of this study was to investigate the dosimetric properties of magnesium oxide doped with lanthanide and indium impurities and also co-doped with lithium as a high sensitivity thermoluminescence material and its possible potential for high dose dosimetry. All the samples were synthesized by the solution combustion method and their crystalline nature was confirmed by using x-ray diffraction analysis. The morphology of the samples was characterized by scanning electron microscopy and it showed spherical particle distribution with average diameters of 158nm. Thermoluminescence response of magnesium oxide doped and co-doped with lanthanide, indium, and lithium exposed to gamma radiation within the dose range of 1 to 12kGy was measured and compared. Thermoluminescence glow curve of the samples showed a complex structure. In most cases, the thermoluminescence response of the materials to the exposed radiation was sublinear. Thermal fading of the samples was investigated and showed the remarkable result.

Keywords

Dosimetry
Thermoluminescence
Magnesium oxide
Activator
lanthanide

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