فهرست نشریات علمی دسترسی آزاد ایران

Composites were prepared by dispersing 35 nm cobalt ferrite nanoparticles in a Bremer Epoxy resin (50/100) mixture. Various composites were formed using cobalt ferrite powder at 1 %–4 % wt. The specimens were prepared in the form of a cylindrical disc with different densities (15 mm). Density of individual samples have been calculated using dimensional analysis. Composites were screened using a Geiger counter. Mass attenuation reduction A key parameter in the study of how gamma rays interact with matter is mass attenuation. It represents the mass attenuation coefficient of gamma radiation by a material.