Thermoluminescence characterization of Ag, Sm3+ co-doped Li2B4O7 glass phosphors
Por:
Di Rocco A., Cruz-Zaragoza E., Camarillo-García E., Sánchez-Alejo M., Lester M., Marcazzó J.
Publicada:
1 ene 2026
Ahead of Print:
1 jun 2026
Resumen:
© 2026 Elsevier LtdUndoped, silver (Ag) and samarium (Sm) doped, and Ag-Sm co-doped Li2B4O7 glassy systems were synthesized using the solid-state method, and a comprehensive structural, optical, and thermoluminescence (TL) characterization was carried out. The highest TL intensity was found in the co-doped Li2B4O7:1% Ag:2% Sm composition, which exhibits a significant enhancement in TL performance with an increase of approximately 200% in peak intensity compared to the undoped matrix. The material also demonstrates a highly linear dose response relationship (R ˜ 1) over the 1-500 Gy range, along with excellent repeatability (<1% variation), thereby fulfilling key criteria for reliable dosimetry applications. These results provide clear experimental evidence that Ag–Sm3+ co-doping is an effective strategy for enhancing the TL efficiency of Li2B4O7 under beta irradiation. Consequently, this material emerges as a promising candidate for radiation dosimetry, underscoring the critical role of multi-dopant synergy in optimizing luminescent detectors systems.
Filiaciones:
Instituto de Física Arroyo Seco (UNCPBA) and CIFICEN (UNCPBA-CICPBA-CONICET), Pinto 399, Tandil, Buenos Aires, 7000, Argentina
Universidad Nacional del Centro de la Provincia de Buenos Aires (UNCPBA), Facultad de Ciencias Exactas, Pinto 399, Tandil, Buenos Aires, 7000, Argentina
Instituto de Ciencias Nucleares, Universidad Nacional Autónoma de México, A.P. 70-543, Ciudad de México, 04510, Mexico
Instituto de Física, Universidad Nacional Autónoma de México, A.P. 20-364, Ciudad de México, 01000, Mexico
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