Gamma ray and neutron shielding properties of some alloy materials

Gamma ray and neutron shielding properties of some alloy materials, CS-516, SS-403, SS-410, SS-316, SS-316L, SS-304L, Incoloy-600, Monel-400 and Cupero-Nickel were studied in the present work. Gamma shielding effectiveness of the alloys was studied by calculation of mass attenuation coefficient, half-value layer and exposure buildup factor (EBF). The EBFs of the alloys were calculated by GP fitting formula for photon energy 0.015-15 MeV up to 40 mfp penetration depth. Fast neutron removal cross section of the alloys was calculated by partial density method. Cupero-Nickel was found to be best shielding for gamma rays. For neutron, SS-316 was found to be the best shielding materials in energy 2-12 MeV. This study should be useful for potential applications of these materials in nuclear reactor core design and other industries for choice of effective gamma ray and neutron shielding materials.