In this study, a new experimental annealing procedure, which is based on combined UV(253.7±1.2 nm) irradiation and thermal annealing (300 °C for 30 min followed by 90 °C for 6 h) is introduced to reduce the large standard deviation (8-20% between consecutive ten cycles) observed after standard annealing (400 °C for 1 h followed by 100 °C for 10 min) on the main dosimetric peak 5 of thermoluminescence dosimeter TLD-100. The results indicate that when the combined UV irradiation and thermal annealing protocol is applied, the standard deviation in the area of the main dosimetric peak 5 is reduced to less than 10% for the consecutive ten-cycle operation.