Fersiynau electronig

Dogfennau

  • manuscript-accepted

    Llawysgrif awdur wedi’i dderbyn, 455 KB, dogfen-PDF

    Embargo yn dod i ben: 2/05/22

    Trwydded: CC BY-NC-ND Dangos trwydded

Dangosydd eitem ddigidol (DOI)

The isotopic fractions of plutonium produced in a reactor are of significant value as nuclear forensic signatures, and the mechanisms of their production and alteration should be investigated thoroughly. A series of neutronics calculations were made on a typical UO2 PWR setup, introducing (Th, U)O2 MOX rods gradually, to investigate how the presence of Th affects the 240Pu/239Pu and 242Pu/239Pu ratios in the remaining UO2 fuel rods. A relationship is found that links the percentage change in these ratios, with the burnup and Th content in the configuration. In an extreme case, it was found that the presence of Th may increase the ratio of 242Pu/239Pu by as much as 3.5% at low burnup.
Iaith wreiddiolSaesneg
Rhif yr erthygl103762
CyfnodolynProgress in Nuclear Energy
Cyfrol137
Dyddiad ar-lein cynnar2 Mai 2021
Dynodwyr Gwrthrych Digidol (DOIs)
StatwsCyhoeddwyd - 1 Gorff 2021
Gweld graff cysylltiadau