Thermoluminescence of ZnF2:Mn

The thermoluminescence of undoped and Mn-doped ZnF 2 was investigated at the dopant concentration of 1.5 % mole Mn after y - ray irradiation at room temperature. The glow curve from undoped ZnF 2 presents two peaks centered at 86°C and 273°C, while the ZnF 2 :Mn presents two peaks located at higher temperatures (325°C and 365°C), whose height ratio is modified with dose. The dose responses and fading process were also examined. The radiative thermostimulated recombination was found to be of the second kinetic order based on the geometric factor calculation. The trap parameters were obtained as activation energy and frequency factor.