U in UO
and MOX fuelsYamamoto, Kento; Okumura, Keisuke 
To clarify the generation pathway of U in burned fuels, which is an important nuclide for dose evaluation at various stages in fuel cycle, concentrations of U generated through various pathways were evaluated for UO and MOX fuels at 45 GWd/t using the ORIGEN2.2 code. It was found that the difference of U concentrations in UO and MOX fuel are mainly derived from the difference of the initial compositions of 
U, 
U and 
U and the contribution of plutonium and americium isotopes in MOX fuels is not so large compared with that of uranium isotopes. The results clarified that the capture cross sections of 
Th, 
Pa, U and U and (
,2) cross sections of Np and 
U have a large effect on generation of U. The additional investigation showed that not only time after irradiation but also time before irradiation has a strong effect on U concentration.
Language |
: | English |
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Journal |
: | |
Volume |
: | 51 |
Number |
: | 4 |
Pages |
: | p.568 - 573 |
Publication Year/Month |
: | 2014/04 |
Paper URL |
: |
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Keywords |
: | no keyword |
Accesses |
: |
- Accesses |
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InCites™ |
: |
Percentile:23.92 Category:Nuclear Science & Technology |
Altmetrics |
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