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ECN results of the PSI benchmarks on non-fertile fuels
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ECN publicatienummer: Publicatie type:
ECN-R--97-014 Overig
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The destruction of plutonium is most effectively done in a fuelconsisting of plutonium mixed in a non-fertile matrix. Several matrices have been proposed and the characterization of the (mostly ceramic) materials is subject of worldwide research, e.g. within the framework of the EFTTRA program (Experimental Feasibility of Targets for TRAnsmutation). Besides the materials behaviour upon irradiation in nuclear reactors, the reactor physics behaviour of these new fuels is studied, because this may be quite different from that of ordinary fuels due to the absence of uranium. In 1996, a benchmark was defined by PSI to quantify the uncertainties related to the use of non-fertile fuels. In this report the ECN contributions to these benchmarks are presented. Wherever possible, extra data and comments are given to explain the results obtained. 25 figs., 24 tabs., 6 refs.

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