Effect of moisture content on gamma ray and neutron attenuation properties of barite fillers

Authors : M. Talha Ünal, H. Süleyman Gökçe

Pages : 1352-1359

Doi:10.28948/ngumuh.1647338

View : 47 | Download : 49

Publication Date : 2025-10-15

Article Type : Research Paper

Abstract :Today, demands for energy sources and new technologies that will contribute to the challenge of global warming have contributed to the research and activities carried out in the field of nuclear energy. Increasing and diversifying nuclear activities lead to an increase in the studies to be carried out for the elimination of radioactive emissions during their operation. This study aims to investigate the gamma ray and neutron shielding capabilities of barite backfill materials at different moisture contents (1-5%, by weight) compacted with a Proctor test apparatus. After a standard compaction procedure, the gamma ray and neutron attenuation properties of these compacted filler materials were simulated with NGCal software using the density and elemental fractions. The results indicate that the optimum moisture content (OMC) lies between 3% and 4%, achieving maximum density at 2.917 g/cm³. While gamma-ray attenuation exhibited minimal sensitivity to moisture variation, neutron attenuation improved significantly with increased moisture content due to hydrogen’s role in neutron moderation. The findings suggest that moisture control is essential in optimizing radiation shielding efficiency, balancing gamma-ray attenuation stability with enhanced neutron absorption. These insights contribute to the development of more effective radiation shielding materials for nuclear energy applications.
Keywords : Nem, Dolgu, Barit, Gama ışını ve nötron zırhlama kabiliyeti

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