تاثير اشعة كاما على الثوابت البصرية لاغشية ثنائي اوكسيد القصدير المشوبة بالفلور

Thin films of Sn02 and Sn02:F have been prepared using SnCl2.2H20 with a new préparation conditions utilizing chemical spray pyrolysis. The optical constants including extinction coefficient, refractive index, real and imaginary part of the dielectnc constant have been studied as a function of photon enerSy- it was clearly seen that irradiation by gamma rays from Co for 6 hours affected ail the parameters and in some of them change the shape of the curve.