تاثير اشعة كاما على الخواص البصرية لاغشية (Fe2 O3) الرقيقة المحضرة بطريقة الترسيب الكيميائي الحراري

Thin films of Fe2O3 have been deposited on a borosilicate glass using the chemical spray pyrolysis technique, where the substrate temperature was (420)°C. By using XRD technique, it was found the structural of the as deposited thin films was polycrystalline. The absorptance and transmittance spectra have been recorded in the spectrum range (300-900) nm, before and after irradiation by y-rays. The optical constants including, absorption coefficient, reflectance, extinction coefficient, refractive index, real and imaginary part of dielectric constant, all these parameters were calculated as a function of photon energy before and after irradiation, it was found that y-rays affected all these parameters by decreasing them.