This research article presents a detailed analysis of the thermoluminescence (TL) glow curves exhibited by calcium sulphate doped with dysprosium (CaSO4:Dy) crystals following X-ray irradiation. TL is a phenomenon where certain materials emit light when heated after being exposed to ionizing radiation. CaSO4:Dy is known for its thermoluminescent properties, making it a valuable material in dosimetry and radiation monitoring applications. The investigation of the glow curve characteristics of CaSO4:Dy crystals by CGCD deconvolution at different heating rates reveals both consistent trends and noteworthy differences. The activation energy (E) consistently varies from 0.8 to 1.5 eV, and the value of frequency factor (s) ranges from 2.38E+08 to 7.76E+11. The order of kinetics (b) exhibits variation between 1 and 2, suggesting a complex interplay of thermoluminescent mechanisms influenced by the heating rate.