Neutron and gamma radiation shielding Ni based new type super alloys development and production by Monte Carlo Simulation technique

In the present study, five different type of new super alloys have been developed and produced which have high temperature resistance for both gamma and fast neutron radiation shielding. These super alloys have been produced with powder methodology by using the materials such as iron (Fe), rhenium (Re), boron carbide (B4C), nickel (Ni), chromium (Cr), boron (B), copper (Cu), tungsten (W), tantalum (Ta). Gamma-ray Mass attenuation coefficients, half value layer effective atom number, mean free path and fast neutron total macroscopic cross section, transmission number values have been theoretically calculated by using Geant 4 code, WinXCom and Phy-X / PSD software. In addition, experimentally equivalent dose measurements have been carried out by using 241Am-Be fast neutron source. Sulfuric acid abrasion, compressive strength, temperature resistance and weldability tests have been made. The results are compared with 316LN nuclear stainless steel because of its common use in nuclear shielding applications and all new type super alloy samples have shown better radiation absorption ability for both gamma and fast neutron. It has been determined that these new type super alloys can be used in nuclear applications for better shielding.