Authors:
D. Moir AECL Research Whiteshell Laboratories ROE ILO Pinawa Manitoba Canada

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K. Ross AECL Research Whiteshell Laboratories ROE ILO Pinawa Manitoba Canada

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J. Chen AECL Research Whiteshell Laboratories ROE ILO Pinawa Manitoba Canada

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A. Tarr AECL Research Whiteshell Laboratories ROE ILO Pinawa Manitoba Canada

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E. Bialas AECL Research Whiteshell Laboratories ROE ILO Pinawa Manitoba Canada

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W. Boivin AECL Research Whiteshell Laboratories ROE ILO Pinawa Manitoba Canada

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D. Doern AECL Research Whiteshell Laboratories ROE ILO Pinawa Manitoba Canada

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D. Hoffman AECL Research Whiteshell Laboratories ROE ILO Pinawa Manitoba Canada

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J. Ross AECL Research Whiteshell Laboratories ROE ILO Pinawa Manitoba Canada

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Abstract  

Spent ion-exchange resins are produced in the purification of coolant and moderator systems during the normal operation of CANDU (Canada deuterium uranium) nuclear reactors. Carbon-14 is a radionuclide of concern in disposal of ion-exchange resins because of its relatively long half-life, its potential high mobility and its ability to be easily incorporated into organisms. Only limited data are presently available on the14C concentrations of spent from CANDU reactors. To establish a more comprehensive datahase for this radionuclide, concentrations of14C were determined for two moderator resins from Bruce Nuclear Generating Station A. Mixed bed resins were separated into anion and cation fractions using a sugar solution, and the14C concentrations were determined for each fraction. Carbon-14-was located predominantly on the anion beads. Samples of anion resin were found to undergo an 81% loss in the14C concentration over a period of 160 d following the sugar separation procedure. Some evidence is given to suggest this loss in14C may result from microbial activity. Concentrations and distributions of other predominant radionuclides, such as60Co and153Gd, are discussed as well.

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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)