Radiation shielding properties of SiO 2–me IIFe 12O 19 nanocomposite materials prepared by sol-gel method

Abstract

SiO2 materials containing different magnetic fillers МеIIFe12O19 are obtained by the sol-gel method. It is studied the weakening of electromagnetic radiation in the frequency range 8–11.5 GHz by the materials obtained with the use of panoramic attenuation measurers and panoramic standing wave voltage coefficient measurers. It is also estimated the attenuation contribution of the radiation reflection from the material surface. The materials obtained can be used as a first layer of electromagnetic radiation absorbing materials which reduce the level of reflected energy.