Critical view on TL/OSL properties of Li2B4O7 nanoparticles doped with Cu, Ag and co-doping Cu, Ag: Dose response study

Modelling the radioluminescence of Sm2+ and Sm3+ in the dosimeter material NaMgF3:Sm

“…Magnetic susceptibility measurements were also made for a sample that was x-ray irradiated with a dose of 7.2 kGy, then optically bleached at 290 nm to remove any contribution from paramagnetic F-type centres. Fitting the data to equation (11) produced parameters similar to those of the non-irradiated sample, suggesting that the concentration of Sm ions that experience a valence change during irradiation is small relative to the total concentrations. This observation justifies the absence of a conversion term in the RL model.…”

“…Luminescence-based dosimeters have been investigated extensively over the last several decades as alternatives to electronic dosimeters, largely due to high sensitivities, the possibility of passive detection, and the capability of all-optical readout [6][7][8][9]. Thermoluminescence (TL) and optically stimulated luminescence (OSL) are phenomena that are commonly researched in different materials [6,[10][11][12][13][14][15]. Suitable materials efficiently store radiation dose information in the form of stable trapped charges.…”

Characterization of luminescent dosimeters for sterile insect technique

“…The TL properties of Li2B4O7 with different dopants and co-dopants have been investigated by several authors [15][16][17][18], however, there are few works in the literature on the OSL properties and applications for this material [19]. Heman et al [20], for example, studied OSL characteristics of Li2B4O7 doped with different concentrations of Cu, Ag and co-doped with Cu, Ag. Their results showed that Ag as a co-dopant plays a role of increasing the sensitivity of the host material when doped with Cu and gives rise to increase the overall emission.…”