Activities of the 238 U, 232 Th decay chains and for 40K and calculated beta dose rates.
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For the Uranium family, the activities deduced from the 234Th (pre 226Ra–“top”), from the 214Bi and 214Pb contents (post 226Ra_ “middle”), and from 210Pb (“bottom”) are displayed. a) fraction 2 mm and
针对铀衰变系（Uranium family），展示了分别由钍-234（234Th，镭-226（226Ra）前——"上段"）、铋-214（214Bi）与铅-214（214Pb）含量（镭-226后——"中段"）以及铅-210（210Pb，"下段"）推导得到的放射性活度。a) 粒径为2mm的组分及
创建时间：
2018-10-10
