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Nondestructive determination of lead-210 and radium-226 in sediments by direct photon analysis

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Abstract

A method is described for the non-destructive determination of210Pb and226Ra in sediments. The procedure is based on the direct counting of the 46.5-keV γ-ray of210Pb and the 351.9-keV γ-emission of214Pb. The self-absorption of the 46.5-KeV γ-ray is corrected using a technique involving direct gamma transmission measurements on sample and efficiency calibration standard. Several reference materials when assayed by the described method yielded results in general agreement with the certified values. The application of the method is illustrated through the analysis of the excess210Pb profile of a Lake Ontario sediment core.

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Authors and Affiliations

  1. Environmental Contaminants Division, National Water Research Institute, Canada Centre for Inland Waters, Environment Canada, P.O. Box 5050, L7R 4A6, Burlington, Ontario, Canada

    S. R. Joshi

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  1. S. R. Joshi
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Joshi, S.R. Nondestructive determination of lead-210 and radium-226 in sediments by direct photon analysis. Journal of Radioanalytical and Nuclear Chemistry, Articles 116, 169–182 (1987). https://doi.org/10.1007/BF02037220

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  • DOI: https://doi.org/10.1007/BF02037220

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