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자료유형
학술저널
저자정보
저널정보
한국원자력학회 Nuclear Engineering and Technology Nuclear Engineering and Technology 제51권 제8호
발행연도
2019.1
수록면
2,013 - 2,017 (5page)

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The radon concentrations in soil air were measured before and after a rainfall. 226Ra concentration, porosity, moisture content and temperature in soil were measured at Kyungpook National University in Daegu. As the results of measurement and analysis, the arithmetic mean of measured 222Rn concen-tration increased from 12100 ± 500 Bq/m3 to 16200 ± 600 Bq/m3 after the rainfall. And the measured 226Ra concentration was 61.4 ± 5.7 Bq/kg and the measured porosity was 0.5 in soil. The estimated values of 226Ra concentration and porosity using diffusion model of 222Rn in soil were 60.3 Bq/kg and 0.509, respectively. The estimated values were similar to the measured values. 222Rn concentration in soil increased with depth and moisture content. The estimations were obtained through fitting based on the diffusion model of 222Rn using the measurement values. The measured depth profiles of 222Rn were similar to the calculated depth profiles of 222Rn in soil. We hope that the results of this study will be useful for environmental radiation analysis.

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