Thermoluminescece properties of BeO:Mg nanoparticles produced by sol-gel method

چکیده مقاله

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 137 Cs 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.