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http://dx.doi.org/10.7742/jksr.2016.10.8.559

Design of Double Layer Shielding Structure using Eco-friendly Shielding Materials  

Park, Ji Koon (Department of Radiological Science, International University of Korea)
Choi, Il Hong (Department of Radiological Science, International University of Korea)
Park, Hyung Hoo (Department of Radiological Science, International University of Korea)
Yang, Sung Woo (Department of Radiological Science, International University of Korea)
Kim, Kyo Tae (Department of Biomedical Engineering, Inje University)
Kang, Sang Sik (Department of Radiological Science, International University of Korea)
Publication Information
Journal of the Korean Society of Radiology / v.10, no.8, 2016 , pp. 559-563 More about this Journal
Abstract
Recently, a barium(Ba) and an iodine(I) being studied as a conventional lead(Pb) alternatives of shielding material has excellent shieding rate, but the characteristic x-ray photons in the energy range near 30 keV line is released. In this study, with bismuth oxide(BiO) coupled barium sulfate($BaSO_4$) double layer, transmitted spectra, shieding rates and relative weighting rates were evaluated to validate the applicability of eco-friendly double layer shieding structure using monte carlo simulations as a prior study. From the evaluation results, in 0.4mm and 0.5mm thickness of BiO layers coupled with top 0.1mm-$BaSO_4$ layer, the shieding rate showed 1.9% and 3.9% higher than 0.6mm thickness of Pb single layer, respectively. In addition, the relative weight also 28% and 34.5% lower than 0.6mm-Pb in 0.4mm and 0.5mm thickness of BiO layers coupled with top 0.1mm-$BaSO_4$ layer.
Keywords
lead; barium sulfate; bismuth oxide; shielding rate;
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