Highly saline brines from a geothermal plant in Neustadt-Glewe, Germany, were investigated with respect to their radionuclide concentrations. The natural decay series in these fluids are far from radioactive equilibrium with main activity contributions from the radium isotopes (226)Ra, (228)Ra and (224)Ra. A general mathematical formulation for the coupled radionuclide activities within one decay chain is applied on the system (228)Ra…(212)Pb and tested on real samples in order to evaluate several radionuclide concentrations at the moment of sampling.
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| http://dx.doi.org/10.1016/j.apradiso.2011.04.016 | DOI Listing |
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