Luminescence characterizations of highly beta sensitive lithium silicate systems

Abstract

The current study investigates lithium silicate systems' thermoluminescence (TL) properties. The preparation of lithium silicate systems was achieved using the solid-state reaction method. The crystal structure and the contribution of the different silicate phases to the prepared systems were propped and investigated using XRD analysis. The TL glow curves of the prepared systems were analyzed, using experimental and computational means, to determine the composing TL components and to extract their kinetic parameters. The analysis methods indicate that the glow curves are comprised of seven TL components. The results revealed that the sensitivity of the prepared systems to beta radiation is six times that of the standard TLD 100. The lower detection limit was evaluated to be 46 μGy. These promising TL properties promote the prepared lithium silicate systems to be used in many applications like radiotherapy and environmental monitoring.