@article{ijp2014215,
author={{Najam, Laith A. and Mheemeed, Ahmed K. and Hassan, Isra.a M.},
title={Using Gamma-Ray to Determine the Homogeneity of Some Building Materials},
journal={International Journal of Physics},
volume={2},
number={1},
pages={23--29},
year={2014},
url={http://pubs.sciepub.com/ijp/2/1/5},
issn={2333-4886},
abstract={In this paper, we use a narrow collimated beam of mono- energetic gamma rays emitted from the radioactive source <SUP>137</SUP>Cs (662 keV) and the system of measuring gamma rays UCS-20 associated with the<b> </b>sodium iodide detector NaI (Tl) to determine the homogeneity of the building materials, Granite, Marble, Cement, Ceramic and Bricks. The homogeneity test was determined from the percentage difference between the transmitted intensity of gamma-rays and the linear attenuation coefficient at different positions for each sample of the material then the percentage of standard deviation was checked.},
doi={10.12691/ijp-2-1-5}
publisher={Science and Education Publishing}
}