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Description
Although several types of glass have been explored for their luminescent properties, studies on Ag-activated silicate glasses remain relatively limited, mainly due to their high melting temperatures, which typically reach around 1600 °C. Nevertheless, silicate-based glasses are known for their chemical and thermal stability compared with other glass systems. Aiming to obtain a more stable glass matrix while reducing the melting temperature, the silicate composition was modified by incorporating aluminum and boron oxide into the network. This adjustment enabled glass preparation at approximately 1200 °C, facilitating processing while preserving the desirable stability associated with silicate-based materials. Therefore, the aim of this study is to investigate optically stimulated luminescence (OSL) and thermoluminescence (TL) properties of the latter glass material for, particularly, dosimetric applications. The samples were synthesized using the melt-quenching technique. The reagents used were sodium borate decahydrate (Na₂O·2B₂O₃), silicate oxide (Si2O), aluminum oxide (Al2O3) and silver nitrate (AgNO₃) at concentrations 0.00, 0.05, 0.10, 0.50, 2.00, and 5.00 mol%. Luminescence analysis was conducted using the Risø TL/OSL-DA-20. Concentration of Ag showing the highest sensitivity varies by luminescence phenomenon. Regarding TL and OSL, the samples containing 0.0% and 0.10% Ag, respectively, exhibited the highest sensitivity within the UV detection range. Furthermore, a study of annealing, at different temperatures and times, was carried out to verify its influence on the luminescence response for TL and OSL. Additional discussion about dosimetric properties such as dose response, fading, reproducibility and photoluminescence lifetime of the samples will be also presented.