Thermoluminescence characteristics of Cu₂O doped Calcium Lithium borate glass irradiated with the cobalt-60 gamma rays

The aim of this study is to prepare and investigate the thermoluminescence characteristics for the un-doped and Cu₂O doped calcium lithium borate glass upon adding various Cu₂O concentrations of 0.005% to 0.1 mol%. The glasses were prepared by melt quenching method and irradiated with ⁶⁰CO gamma-ray having different doses in the range of (0.5–4) Gy, (5–10) Gy, and (20–100) Gy. The amorphous phases were identified for optimization glass samples, effect of heating rate, glowing curves, linearity, sensitivity, fading, reproducibility of response and minimum detectable dose are also studied. The TL sample with 0.02 mol% Cu₂O concentration has higher response compared to the other samples concentration for a delivered dose of 50 Gy, The recorded glow curves consist a dominant peak at 187 °C for a heating rate of 5 °C s⁻¹. However, the value of effective atomic number Z_eff is 8.84 for 0.02Cu₂O doped which are near to the atomic number of soft tissue. - Highlights: •We have prepared and investigate the crystalline structure for the un-doped and Cu₂O doped calcium lithium borate glass are carried out. •Investigate the amorphous structure of calcium lithium borate glass. •Determine the best setting of annealing temperature, annealing time and heating rate for Cu₂O doped calcium lithium borate glass. •The doping effects of Cu₂O on the thermoluminescence properties of calcium lithium borate glass subjected gamma radiations. •The new dosimeter showed simple glow curve with single prominent peak centred at 187 °C and linear dose–response range 0.5–100 Gy, good reproducibility, the fading of the signal is relatively slow. •Effective atomic number for Cu₂O doped Calcium lithium borate close to the effective atomic number of soft tissue.