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KMID : 0357520140370020143
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Journal of Radiological Science and Technology
2014 Volume.37 No. 2 p.143 ~ p.150
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A Study on the Shielding of Iodine 131 Using Monte Carlo Simulation
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Jang Dong-Gun
Yang Seoung-Oh
Lee Sang-Ho
Choi Hyung-Seok
Kim Jung-Ki
Bae Cheol-Woo
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Abstract
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This study was designated to investigate the bremsstrahlung and radiation dose by beta rays. Radiation attenuation from I-131 treatment ward was analyzed using radio protective apron. Shielding materials which is included lead or water were simulated in Monte Carlo Simulation then the spectrum on interaction was analyzed. The shielding materials were categorized according to the thickness. 0.25mm and 0.5mm thick lead and 0.1mm and 0.2mm thick water shielding materials were configured in Monte Carlo Simulation for this study. Only lead shielding method and water plus lead shielding method were carried. As a results, when 0.5mm thick lead shielding method was performed, the radiation dose was similar to the results with water plus lead shielding method. In case of using 0.25mm thick lead shielding, the shielding effect was somewhat less. However, that shielding method cause dose reduction of about 60% compare with non-shielding material.
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KEYWORD
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Monte Carlo Simulation, Shielding materials, I-131 treatment
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