Effects induced by γ -irradiation in the dose range of 0-10 Mrad on Tuffak polycarbonate track detector films have been studied
by thermogravimetry (TG). The samples were irradiated with 60Co γ -rays for doses of 3, 5 and 10 Mrad. The TG studies indicate that unirradiated and the γ -irradiated samples degrade
in two steps. The kinetics of the two steps of degradation was also evaluated from the TG curves. Irradiation enhances the
degradation rate and the effect increases further with increasing radiation dose. The activation energy values calculated
for all the steps decrease on irradiation. A linear relationship observed between the decrease in activation energy and the
dose received by the sample suggests the possibility of the use of Tuffak polycarbonate detector as γ dosimeter.