Nuclear data adjustment based on the interpretation of post-irradiation experiments with the DARWIN2.3 package
CEA, DEN, DER, SPRC, Cadarache,
2 CEA, DEN, DER, SESI, Cadarache, 13108 Saint-Paul-Lez-Durance, France
3 AREVA NC, BU Recyclage, Paris, France
* e-mail: email@example.com
Received in final form: 20 February 2018
Accepted: 17 May 2018
Published online: 14 November 2018
DARWIN2.3 is the French reference package dedicated to fuel cycle applications, computing fuel inventory as well as decay heat, neutron emissions, α, β and γ spectra. The DARWIN2.3 package fuel inventory calculation was experimentally validated with Post-Irradiation Experiments (PIEs), mainly consisting in irradiated fuel pellets analysis. This paper presents a method to assimilate these integral trends for improving nuclear data. In this study, the method is applied to 137Cs/238U concentration ratio. Results suggest an increase of the JEFF-3.1.1 235U cumulated thermal fission yield in 137Cs by (+3.8 ± 2.1)%, from 6.221E-02 to 6.460E-02 ± 2.1%.
© A. Rizzo et al., published by EDP Sciences, 2018
This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.