Home / Store / Journals / Electronic Articles / Nuclear Science and Engineering / Volume 150 / Number 1 / Pages 109-114
H. Derrien, L. C. Leal, A. Courcelle, A. Santamarina
Nuclear Science and Engineering / Volume 150 / Number 1 / Pages 109-114
Format:electronic copy (download)
A new SAMMY analysis of the 241Pu resonance parameters from thermal to 20 eV is presented. This evaluation takes into account the trends given by integral experiments [post-irradiation experiments performed in French pressurized water reactors (PWRs)]. Compared to the previous evaluations performed by Derrien and de Saussure, the capture cross section increases especially in the 0.26-eV resonance. It is shown that the new resonance parameters proposed in this work improve the prediction of the 242Pu buildup in a PWR, which was significantly underestimated with the previous evaluations.
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