Multirecycling of Plutonium from LMFBR Blanket in Standard PWRs Loaded with MOX Fuel

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It is now well-known that, from a physics standpoint, Pu, or even TRU (i.e. Pu+M.A.), originating from LEU fuel irradiated in PWRs can be multirecycled also in PWRs using MOX fuel. However, the degradation of the isotopic composition during irradiation necessitates using enriched U in conjunction with the MOX fuel either homogeneously or heterogeneously to maintain the Pu (or TRU) content at a level allowing safe operation of the reactor, i.e. below about 10%. The study is related to another possible utilization of the excess Pu produced in the blanket of a LMFBR, namely in a PWR(MOX). In this case ... continued below

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Sen, Sonat & Youinou, Gilles February 1, 2013.

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It is now well-known that, from a physics standpoint, Pu, or even TRU (i.e. Pu+M.A.), originating from LEU fuel irradiated in PWRs can be multirecycled also in PWRs using MOX fuel. However, the degradation of the isotopic composition during irradiation necessitates using enriched U in conjunction with the MOX fuel either homogeneously or heterogeneously to maintain the Pu (or TRU) content at a level allowing safe operation of the reactor, i.e. below about 10%. The study is related to another possible utilization of the excess Pu produced in the blanket of a LMFBR, namely in a PWR(MOX). In this case the more Pu is bred in the LMFBR, the more PWR(MOX) it can sustain. The important difference between the Pu coming from the blanket of a LMFBR and that coming from a PWR(LEU) is its isotopic composition. The first one contains about 95% of fissile isotopes whereas the second one contains only about 65% of fissile isotopes. As it will be shown later, this difference allows the PWR fed by Pu from the LMFBR blanket to operate with natural U instead of enriched U when it is fed by Pu from PWR(LEU)

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  • Report No.: INL/EXT-13-28448
  • Grant Number: DE-AC07-05ID14517
  • DOI: 10.2172/1082390 | External Link
  • Office of Scientific & Technical Information Report Number: 1082390
  • Archival Resource Key: ark:/67531/metadc836143

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Reports, articles and other documents harvested from the Office of Scientific and Technical Information.

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  • February 1, 2013

Added to The UNT Digital Library

  • May 19, 2016, 9:45 a.m.

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  • June 20, 2016, 3:44 p.m.

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Sen, Sonat & Youinou, Gilles. Multirecycling of Plutonium from LMFBR Blanket in Standard PWRs Loaded with MOX Fuel, report, February 1, 2013; Idaho Falls, Idaho. (digital.library.unt.edu/ark:/67531/metadc836143/: accessed October 20, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.