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Impact of H in H2O thermal scattering data on depletion calculation: k∞, nuclide inventory and decay heat
oleh: Rochman Dimitri, Hursin Mathieu, Vasiliev Alexander, Ferroukhi Hakim
Format: | Article |
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Diterbitkan: | EDP Sciences 2021-01-01 |
Deskripsi
The impact of the H in H2O thermal scattering data are calculated for burnup quantities, considering models of a UO2 pincell with DRAGON and SERPENT. The Total Monte Carlo method is applied, where the CAB model parameters are randomly varied to produce sampled (random) LEAPR input files for NJOY. A large number of burnup calculations is then performed, based on the random thermal scattering data. It is found that the impact on k∞ is relatively small (less than 35 pcm), as for nuclide inventory (less than 1% at 50 MWd/kgU) and for decay heat (less than 0.4%). It is also observed that the calculated probability density functions indicate strong non-linear effects.