铀
铀矿
环境科学
放射性核素
土工试验
放射性武器
γ射线光谱法
采矿工程
环境化学
放射化学
地质学
土壤科学
土壤水分
化学
材料科学
物理
核物理学
冶金
作者
Louis John Majawa,Victor M. Tshivhase,Thulani Dlamini
出处
期刊:Radiation Protection Dosimetry
[Oxford University Press]
日期:2022-08-25
卷期号:198 (17): 1353-1360
被引量:4
摘要
The activity concentrations of 238U, 232Th and 40K in the soil of areas surrounding the Kayelekera uranium mine were assessed. This study aims to provide a comprehensive profile of soil radioactivity distribution in the area surrounding the uranium mine to determine radiological hazards associated with mining and processing activities. Soil samples were analysed using gamma-ray spectrometry with a high-purity germanium detector. Mean specific activities of 238U, 232Th and 40K were 58.3 ± 3.7, 40.3 ± 0.3 and 590.9 ± 63.9 Bq kg-1, respectively. Results from this study have indicated changes in radioactivity levels of naturally occurring radioactive materials in the area surrounding the understudied mine, with certain areas close to the mine site showing elevated levels of 238U, highlighting the need for systematic and periodic monitoring.
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