Abstract:
This study aims to produce lithium aluminate (LiAlO2) materials as dense ceramics by the sol-gel
method and to examine their structural and luminescence properties for radiation dosimetry applications.
The crystal structures of ceramics synthesized using the XRD method were confirmed and their
morphological properties were examined using SEM analysis. The defect concentrations and lattice
parameters of LiAlO2 were also discussed in depth. It has been found that LiAlO2 ceramics have a total
of three exponential decay function components that decay OSL signals fast, medium and slow. The TL
glow curve of the material exhibited two TL peaks located around 110 and 200 °C. An intense
luminescence band around 700 nm was found in RL and TL emissions, which is attributed to oxygen
vacancies in the structure. Obtaining promising luminescence signals for passive dosimetry from LiAlO2
samples in this study may make them a candidate dosimeter for radiation dosimetry applications with
further studies to be conducted in the future.
