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Xps Valence State Determination of Np And Pu in Multicomponent Borosilicate Glass and Application to Leached 76–68 Waste Glass Surfaces

Published online by Cambridge University Press:  15 February 2011

D. P. Karim ,
D. J. Lam ,
H. Diamond ,
A. M. Friedman ,
D. G. Coles ,
F. Bazan  and
G. L. Mcvay
D. P. Karim
Affiliation:
Argonne National Laboratory, Argonne, I1 60439
D. J. Lam
Affiliation:
Argonne National Laboratory, Argonne, I1 60439
H. Diamond
Affiliation:
Argonne National Laboratory, Argonne, I1 60439
A. M. Friedman
Affiliation:
Argonne National Laboratory, Argonne, I1 60439
D. G. Coles
Affiliation:
Lawrence Livermore Laboratory, Livermore, Ca 94720
F. Bazan
Affiliation:
Lawrence Livermore Laboratory, Livermore, Ca 94720
G. L. Mcvay
Affiliation:
Battelle Pacific Northwest Laboratory, Richland, Wa 99352
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Extract

Current plans for high-level radioactive waste disposal call for long term emplacement of canisters of a suitably leach resistant waste form in deep underground repositories. Proposed regulations [11] call for canisters with a designed lifetime of 1000 years. After this initial period, most of the remaining activity in the waste will be associated with the actinide elements. Thus, the leach behavior of the actinides takes on special importance. In particular, the leaching mechanisms must be understood if we are to attach any confidence to long term predictive extrapolation of short term leach tests. The actinides, unlike the rare earths, are not particularly similar in chemical behavior nor is their behavior reliably modeled by that of other elements. Thus, more studies directed toward the behavior of the actinides in candidate waste forms are important.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 6: Symposium D – Scientific Basis for Nuclear Waste Management IV , 1981 , 67
Copyright
Copyright © Materials Research Society 1982

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References

REFERENCES

1. Federal Register, Vol.46, No.130, P.35289, clause 60.111 (1981).Google Scholar
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