Abstract
Thermoluminescence properties of neodymium-doped silicon dioxide optical fibers have been experimentally investigated in the previously published articles. The samples were exposed to 10 MV X-ray using a linear accelerator at dose range 0.5–4 Gy. In this paper, for the first time, the glow curves were analyzed and deconvoluted using Glow Curves Deconvolution program (GCD). The sets of trapping parameters such as activation energy E (eV), frequency factor s (s−1) and the kinetics order b have been calculated using the peak shape methods. For each glow curve, four peaks were observed at 410, 448, 477 and 520 K. In this work, a phenomenological model is proposed to study thermoluminescence (TL) process in SiO2:Nd3+. Four electron-trapping states and one recombination center model have been used for this purpose. The calculated TL glow curves’ results show a good agreement with the experimental ones.
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Kadari, A., Refaei, A. & Saeed, M.A. Experimental and theoretical study of the TL process in Nd3+-doped SiO2 optical fibers. Appl. Phys. A 125, 639 (2019). https://doi.org/10.1007/s00339-019-2932-y
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DOI: https://doi.org/10.1007/s00339-019-2932-y