International Journal on Applied Physics and Engineering
E-ISSN: 2945-0489
Volume 2, 2023
Improving Neutron Shielding Capacities of Galena and Barite Hybrid Fiber Heavyweight Aggregate Concrete for Nuclear Reactor
Authors: , , ,
Abstract: Biological shielding of nuclear reactors is an important interest and diminishing the intricacy and cost of these installations is an important interest. In this paper, we used galena minerals and barite for the production of a hybrid fiber heavyweight aggregate concrete. Galena minerals that exist in many parts of Iran were used in the concrete mix design. Barite is an important chemical element for neutron absorption processes. The cross-section in matter and neutron capture is a utilizable cause to explain the neutron shielding characteristics of samples. Neutron cross-section measurements of samples were done by using a source of 4.5 MeV neutrons. Cross-section and neutron capture of each sample were calculated by using the Geant 4 Monte Carlo code. As a result, the use of appropriate galena concentration and barite and the use of monofilament polypropylene fiber with steel fiber can improve cross cross-section value of hybrid fiber heavyweight aggregate concrete and enhance the properties of neutron shielding.
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Keywords: Galena, barite, neutron cross section, Geant 4 Monte Carlo code, hybrid fiber heavyweight aggregate concrete, shielding
Pages: 128-136
DOI: 10.37394/232030.2023.2.12