Optical properties of the electron and gamma-ray irradiated soda-lime glass samples

Özet

Optical transmission and absorption spectra of Soda-lime glass samples were studied after irradiation by 8 MeV electron and γ-ray beams. We used modified clinical LINAC for production of electron beam whereas 60Co was used as a γ-ray source. Optical properties of glass samples were analyzed for different doses and radiation types. Irradiation induced color centers in the glass samples were observed in both cases. Moreover, time-dependent optical properties were also acquired after irradiation source was turned off and we observed that these colour centers disappear slowly even at room temperature. Optical transmission spectra of 8 MeV electron and γ-ray beam irradiated samples show spectacular absorption band in the visible region. On the other hand, these absorption bands nearly recover themselves when the irradiated samples are baked for a short time above 100 ◦C.