Author(s): Rasoul Mehrnejad, Turgay Korkut, Bunyamin, Aygun, Abdulhalik Karabulut

Abstract: Shielding of Biological type belonging to nuclear reactor is regarded as an important interest and lowering the complexity and expense of these installations is important issue. In this article, galena minerals and Boron were applied to produce a heavy concrete of high density type. Galena mineral that is present in many regions of Iran were used in the concrete mix design. Boron is considered as a main chemical element for neutron absorption processes. Neutron capture and cross section are two factors that neutron shielding characteristics can explain them. By using a source of 14.1MeV neutrons have done neutron cross section measurements of sample. By using Geant 4 Monte Carlo code, neutron capture and cross section of each sample could be calculated through it. Therefore, high boron concentration can raise cross section value of concrete and develop properties belonging to the neutron shielding.

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