Thermoluminescence is an efficient method in ionizing radiation dosimetry, and materials like CaF₂ are widely used due to their high sensitivity. However, the uniformity of TL response in CaF₂ remains challenging. Carbon nanotubes, due to their unique properties, have been proposed as additives to enhance dosimetric sensitivity. This study investigates the effect of adding multi-walled carbon nanotubes on the TL response of CaF₂. The aim is to evaluate the potential of CNTs as modifiers of TL behavior and analyze their effects on the structure and performance of CaF₂. CaF₂/MWCNT nanocomposites with different MWCNT weight percentages (0.3, 0.5, 1, and 5 wt%) were synthesized via a chemical method. Structural and morphological characterizations were performed using XRD and FESEM. For dosimetric evaluation, TLD pellets were prepared and irradiated using a Cobalt-60 source. Their TL response was measured and the element correction coefficient was calculated. According to its definition, the closer ECC is to unity, the better. XRD results indicated that the crystal structure of CaF₂ remained unchanged after MWCNT addition, though crystallite size decreased. FESEM images confirmed proper dispersion of MWCNTs and CaF₂ particles. To assess uniformity, the relative parameter ΔECC/ECCAve was examined. The lowest ΔECC/ECCAve (0.6266) occurred in the 5 wt% MWCNT sample (B4), identifying it as optimal due to its minimal dispersion and highest uniformity. These findings suggest that adding MWCNTs can improve the stability and uniformity of CaF₂-based dosimeters.