喀麦隆西南部高本底辐射区土壤中²³⁸U和²³²Th向植物的转移
Transfer of ²³⁸U and ²³²Th from soil to plant in a high background radiation area of the southwestern region of Cameroon.
作者信息
Ben-Bolie G H, Ele Abiama P, Owono Ateba P, El Khoukhi T, Cherkaoui El Moursli R
机构信息
Laboratory of Nuclear Physics, Department of Physics, Faculty of Science, University of Yaoundé I, PO Box 812, Yaounde, Cameroon.
出版信息
Radiat Prot Dosimetry. 2013 Dec;157(2):298-302. doi: 10.1093/rpd/nct141. Epub 2013 Jun 10.
In order to estimate the soil-to-plant transfer factors (TFs) of some natural radionuclides, the activity of ²³⁸U and ²³²Th was measured in the soil and in agricultural crop samples collected from identified high background radiation areas in the southwestern region of Cameroon. The results showed that the ²³⁸U and ²³²Th TFs values were in the ranges 1.0×10⁻²-12.2×10⁻¹ kg kg⁻¹ and 5.0×10⁻²-9.7×10⁻¹ kg kg⁻¹, respectively. These computed TFs values were found to be globally higher than those proposed by the International Atomic Energy Agency.
为了估算某些天然放射性核素的土壤-植物转移因子（TFs），对喀麦隆西南部已确定的高本底辐射区采集的土壤和农作物样本中的²³⁸U和²³²Th活度进行了测量。结果表明，²³⁸U和²³²Th的转移因子值分别在1.0×10⁻² - 12.2×10⁻¹ kg kg⁻¹和5.0×10⁻² - 9.7×10⁻¹ kg kg⁻¹范围内。发现这些计算得出的转移因子值总体上高于国际原子能机构提出的值。
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