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Instant Release of 14C, 99Tc, 90Sr and 137Cs from Used Candu Fuel at 25°C in Distilled Deionized Water

Published online by Cambridge University Press:  25 February 2011

S. Stroes-Gascoyne ,
J.C. Tait ,
N.C. Garisto ,
R.J. Porth ,
J.P.M. Ross ,
G.A. Glowa  and
T.R. Barnsdale
S. Stroes-Gascoyne
Affiliation:
AECL Research, Whiteshell Laboratories, Pinawa, Manitoba, Canada
J.C. Tait
Affiliation:
AECL Research, Whiteshell Laboratories, Pinawa, Manitoba, Canada
N.C. Garisto
Affiliation:
AECL Research, Whiteshell Laboratories, Pinawa, Manitoba, Canada
R.J. Porth
Affiliation:
AECL Research, Whiteshell Laboratories, Pinawa, Manitoba, Canada
J.P.M. Ross
Affiliation:
AECL Research, Whiteshell Laboratories, Pinawa, Manitoba, Canada
G.A. Glowa
Affiliation:
AECL Research, Whiteshell Laboratories, Pinawa, Manitoba, Canada
T.R. Barnsdale
Affiliation:
AECL Research, Whiteshell Laboratories, Pinawa, Manitoba, Canada
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Abstract

Instant-release fractions were measured for release of 14C, 99Tc, 90Sr and 137Cs from segments of clad used CANDU fuels in distilled deionized water at pH 8.5 and 25°C. Measured–instant release values, 0.002 to 0.07% for 14C, 0.001 to 0.23% for 99Tc and 0.0005 to 0.04% for 9 0 Sr, were one to two orders of magnitude lower than the estimated values currently used in the safety assessment of the Canadian concept of geological disposal of intact used CANDU fuel. The values for 14C were also lower than values reported in the literature for PWR fuels.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 257: Symposium – Scientific Basis for Nuclear Waste Management XV , 1991 , 373
Copyright
Copyright © Materials Research Society 1992

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References

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