Ce:LaB3O6 glass for high-resolution radiation dosimetry

Ce:LaB3O6 (LBO) glass, whose constituents are abundant elements and fabrication is easy and cheap, is found to be a promising thermoluminescence (TL) dosimeter. This is originally achieved by CeF3 doping and melting under a reducing atmosphere, with the optimum concentration of 0.1% (quantum efficiency = 66%). The corresponding Ce interatomic distance is similar to 4 nm, below which concentration quenching occurs via Ce dipole-dipole interaction, as elucidated experimentally by Dexter's theory. Ce:LBO exhibits a good dose resolution, with a linear dependence covering five orders of magnitude on both irradiation-dose and TL-response. Furthermore, it can be cyclically irradiated and read without degradation.

Automated summary

Ce:LaB3O6 (LBO) glass, doped with CeF3 and melted under a reducing atmosphere, demonstrates promising thermoluminescence dosimetry capabilities with high quantum efficiency. The optimum concentration for optimal performance is 0.1%, with an interatomic distance of approximately 4 nm. Ce:LBO shows good dose resolution and can be cyclically irradiated and read without degradation.