Thermoluminescece properties of BeO:Mg nanoparticles produced by sol-gel method, By Mohsen Mehrabi

Research

Title	Thermoluminescece properties of BeO:Mg nanoparticles produced by sol-gel method
Type	Article
Keywords	Nanostructure BeO Sol-gel Thermoluminescence
Journal	Journal of Nanostructures
DOI	10.7508/jns.2011.03.003
Researchers	Mostafa Zahedifar (First researcher) , Mohsen Mehrabi (Second researcher) , Maryam Modaressi (Third researcher) , Somayeh Harooni (Fourth researcher)

Abstract

Beryllium oxide (BeO) nanopowder was synthesized using sol-gel method and the effects of changes of chemical reagents were investigated. Because of tissue equivalence and other outstanding thermoluminescence (TL) properties of the bulk material in X and γ dosimetry, the applicability of this nanostructure in TL dosimetry was studied following irradiation to the 137Cs source. The TL glow curve of this nanoparticle shows 3 component glow peaks at 391, 429 and 481 K. Computerized glow curve deconvolution program was used for obtaining the number of constituent glow peaks and trapping parameters. Activation energies of three components were obtained to be 1.4, 1.39 and 1.39 eV with kinetic orders of 2.03, 2.12 and 2.09 respectively. TL dose response of this phosphor is also investigated