Effect of moisture content on radon emanation from uranium ore and tailings.
Effect of moisture content on radon emanation from uranium ore and tailings.
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DOI：
10.1097/00004032-198201000-00003
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发表时间：
1982
期刊：
影响因子：
2.2
通讯作者：
K. Strong;D. Levins
中科院分区：
文献类型：
--
作者：
K. Strong;D. Levins
研究了水分对铀矿尾矿辐射系数和氡通量的影响。当水分含量从绝对干燥状态增加到水分重量的2%时，辐射系数急剧上升。饱和水尾矿的辐射系数约为绝对干燥尾矿的4倍。测定了干尾矿、湿尾矿和水饱和尾矿柱的氡通量。充填湿尾砂的矿柱通量最高。这可以用含水率对辐射系数的影响来解释。饱和水尾矿的氡通量最低，因为氡在水中的扩散系数低得多。
A study was made of the effect of moisture on the emanation coefficient and radon flux from uranium mill tailings. A sharp rise in emanation coefficient occurred as the moisture content was increased from the absolutely dry state to 2% water by weight. The emanation coefficients from water-saturated tailings were about four times those from absolutely dry materials. Radon flux was measured from columns of dry, moist and water-saturated tailings. The highest flux came from the column filled with moist tailings. This can be explained by the effect of moisture content on the emanation coefficient. Water-saturated tailings gave the lowest flux because of the much lower diffusion coefficient of radon through water.