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Spent Fuel Reaction: the Behavior of the ε-Phase Over 3.1 Years

Published online by Cambridge University Press:  03 September 2012

P. A. Finn ,
J. C. Hoh ,
S. F. Wolf ,
M. T. Surchik ,
E. C. Buck  and
J. K. Bates
P. A. Finn
Affiliation:
Argonne National Laboratory, 9700 South Cass Avenue, Argonne, IL 60439
J. C. Hoh
Affiliation:
Argonne National Laboratory, 9700 South Cass Avenue, Argonne, IL 60439
S. F. Wolf
Affiliation:
Argonne National Laboratory, 9700 South Cass Avenue, Argonne, IL 60439
M. T. Surchik
Affiliation:
Argonne National Laboratory, 9700 South Cass Avenue, Argonne, IL 60439
E. C. Buck
Affiliation:
Argonne National Laboratory, 9700 South Cass Avenue, Argonne, IL 60439
J. K. Bates
Affiliation:
Argonne National Laboratory, 9700 South Cass Avenue, Argonne, IL 60439
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Abstract

The release fractions of the five elements in the ε-phase (99Tc, 97Mo, Ru, Rh, and Pd) as well as that of 238U are reported for the reaction of two oxide fuels (ATM-103 and ATM-106) in unsaturated tests under oxidizing conditions. The 99Tc release fractions provide a lower limit for the magnitude of the spent fuel reaction. The 99Tc release fractions indicate that a surface reaction might be the rate controlling mechanism for fuel reaction under unsaturated conditions and the oxidant is possibly H2O2, a product of alpha radiolysis of water.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 465: Symposium II – Scienfific Basis for Nuclear Waste Management XX , 1996 , 527
Copyright
Copyright © Materials Research Society 1997

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References

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