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http://dx.doi.org/10.5762/KAIS.2014.15.6.3658

Evaluation of Radiation effective dose by Naturally Radionuclides in the Soil of Busan  

Kim, Jung-Hoon (Dept. of Radiological Science, Catholic University of Pusan)
Kim, Chang-Soo (Dept. of Radiological Science, Catholic University of Pusan)
Lim, Chang-Seon (Department of Radiological Science, Konyang University)
Publication Information
Journal of the Korea Academia-Industrial cooperation Society / v.15, no.6, 2014 , pp. 3658-3666 More about this Journal
Abstract
The presence of $^{238}U$, $^{232}Th$ and $^{40}K$, which are naturally residing radionuclides, in the ordinary soil of Busan, the 2nd largest city in Korea, was anlayzed and the residents' radiation exposure to ordinary soil was evaluated. Regarding the measurement methods, to conduct a detailed analysis of the naturally residing radionuclides in the soil of Busan, this study divided the 16 administrative districts into a lattice structure with 3 spots, and collected a total of 48 soil samples (July 2012 and April 2013). ICP-MS was used to analyze the concentration of the radioactivity of $^{238}U$ and $^{232}Th$ in the soil, and a HpGe detector, a gamma ray detector, was used to analyze the radioactivity of $^{40}K$. The measurement values of this study were compared with the concentration of radioactivity of East Asian regions. The concentration of $^{238}U$ nuclides in Korea was lower than the mean, whereas the concentration of $^{232}Th$ and $^{40}K$ nuclides was higher than the mean. The higher mean concentrations of $^{232}Th$ and $^{40}K$ than the mean were attributed to the many granite areas that contain a great deal of naturally occurring radionuclides.
Keywords
Absorbed dose; Effective dose; $^{238}U$; $^{232}Th$; $^{40}K$;
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Times Cited By KSCI : 3  (Citation Analysis)
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