Abstract
THE potential hazard in mines from the inhalation of the progeny of radon gas has become increasingly interesting in recent years. This hazard involves radon daughters in two forms: (a) attached to aerosol particles or condensation nuclei; and (b) unattached atoms or ions. The form of the unattached daughters is not fully known, but one of their important and basic characteristics is their diffusion coefficient. Of special interest is the diffusion coefficient of the first radon daughter, 218Po, called radium A. This parameter is very important not only in describing atmospheric behaviour1 but also in considering the biological hazard of inhaling unattached daughters2.
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RAABE, O. Measurement of the Diffusion Coefficient of Radium A. Nature 217, 1143–1145 (1968). https://doi.org/10.1038/2171143a0
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DOI: https://doi.org/10.1038/2171143a0
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