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

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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 -ray of210Pb and the 351.9-keV -emission of214Pb. The self-absorption of the 46.5-KeV -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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Journal of Radionalytical and Nuclear Chemistry
Language English
Size A4
Year of
Foundation
1968
Volumes
per Year
1
Issues
per Year
12
Founder Akadémiai Kiadó
Founder's
Address
H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
Publisher Akadémiai Kiadó
Springer Nature Switzerland AG
Publisher's
Address
H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
CH-6330 Cham, Switzerland Gewerbestrasse 11.
Responsible
Publisher
Chief Executive Officer, Akadémiai Kiadó
ISSN 0236-5731 (Print)
ISSN 1588-2780 (Online)