Beryllium oxide nanoparticles: synthesis, characterization, and thermoluminescence evaluation for gamma radiation detection

Abstract

In this study, beryllium oxide nanoparticles (BeO NPs) were synthesized by polymer-gel method with schlenk line. The products were then assessed using FESEM, TGA/DSC, XRD and BET analyses. The quality of two nanooxides, that were calcined at 700 and 800 °C, was studied and compared with bulk BeO particles. The results showed that nanoparticles calcined at 800 °C were more uniform and had ellipsoidal morphology with a particle size of ∼35 nm. Investigation thermoluminescence (TL) characteristics of BeO NPs showed that with the decreasing exposed dose/increasing the BeO particle size, TL peaks were observed at higher temperatures. The intensities of glow curves increase linearly with the increasing absorbed dose in the range of 0.001 mGy–1000 Gy. Various other studies including response fading, minimum temperature and minimum time for annealing, and response changes in repeatability cycles of dosimeter also approved the ability of the prepared BeO NPs for use in gamma radiation dosimetry.

Laser ablation of a solid target in liquid medium for beryllium nanoparticles synthesis

“…Based on high toxicity and environmental problems raised, the scientific literature on Be and Be oxides (BeO) particles synthesis is limited. The traditional methods for BeO NPs synthesis used chemical processes which include sol-gel route [14][15][16]. Using this method, BeO was synthesized in the form of nano powder with small particle diameters, under 50 nm, partially agglomerated.…”

“…Using this method, BeO was synthesized in the form of nano powder with small particle diameters, under 50 nm, partially agglomerated. Additional step which includes calci nations is required in order to accomplished a uniform morphology and size distribution [16]. These studies point out the ease of execution and the versatility of the laser ablation process in liquid in relation with traditional methods used for Be NPs synthesis.…”

The Luminescence of Lanthanide-doped NaMgF3 Nanoparticles: Radioluminescence, Radiophotoluminescence and Optically Stimulated Luminescence

“…additionally used as contrast agents in medical imaging [59][60][61], as radiocatalysts and in drug delivery [30,62]. Furthermore, though limited to a few studies, research on nanoparticles for application in radiochromic [63], gel [64,65] and scintillation detectors [66][67][68][69], and luminescent dosimeters has recently gained attention [70][71][72][73]. However, research on the luminescent properties of NaMgF3 nanoparticles for application in dosimetry has only been limited to Eu-and Mn-doped nanoparticles, where TL and RL have been observed [15,19,26].…”