In this study, the dosimetric characteristics (thickness applicability, preheating time, temperature and humidity dependence, in-batch uniformity, readout reproducibility, dose linearity, self-decay, and electron energy response) of engineered polycarbonate films irradiated with an electron beam (0–600 kGy) were investigated using photoluminescence spectroscopy. The results show a linear relationship between photoluminescence intensity and radiation dose when the thickness of the polycarbonate film is 0.3 mm. A higher fluorescence intensity can be obtained by preheating at \({60}{\, ^{\circ }\hbox {C}}\) for 180 min before photoluminescence spectrum analysis. As the temperature during spectral testing and the ambient humidity (during and after irradiation) increased, the photoluminescence intensity of the polycarbonate films decreased. The photoluminescence intensity deviation of the polycarbonate films produced within the same batch at 100 kGy is 2.73%. After ten times of repeated excitations and readouts, the coefficients of variation in photoluminescence intensity are less than 8.6%, and the linear correlation coefficient between photoluminescence intensity and irradiation dose is 0.965 in the dose capture range of 20–600 kGy. Within 60 days of irradiation, the photoluminescence intensity of the polycarbonate film decreased to 60% of the initial value. The response of the 0.3 mm polycarbonate films to electron beams with energies exceeding 3.5 MeV does not differ significantly. This comprehensive analysis indicates the potential of polycarbonate films as a high-radiation dose detection material.
