tailieunhanh - Measurements of the effective cumulative fission yields of 143Nd, 145Nd, 146Nd, 148Nd and 150Nd for 235U in the PHENIX fast reactor

The effective Neodymium cumulative fission yields for 235U have been measured in the fast reactor PHENIX relatively to the 235U fission cross-section. The data were derived from isotope-ratio measurements obtained in the frame of the PROFIL-1, PROFIL-2A and PROFIL-2B programs. | Measurements of the effective cumulative fission yields of 143Nd 145Nd 146Nd 148Nd and 150Nd for 235U in the PHENIX fast reactor EPJ Nuclear Sci. Technol. 2 32 2016 Nuclear Sciences E. Privas et al. published by EDP Sciences 2016 amp Technologies DOI epjn 2016025 Available online at http REGULAR ARTICLE Measurements of the effective cumulative fission yields of 143 Nd 145Nd 146Nd 148Nd and 150Nd for 235U in the PHENIX fast reactor Edwin Privas1 Gilles Noguere1 Jean Tommasi1 Cyrille De Saint Jean1 Karl-Heinz Schmidt2 and Robert Mills3 1 CEA DEN Cadarache 13108 Saint Paul Les Durance France 2 Centre d Etudes Nucléaires Bordeaux Gradignan CNRS IN2P3 Univ. Bordeaux 1 33175 Gradignan France 3 National Nuclear Laboratory B170 Sellafield Works Seascale Cumbria CA20 1PG UK Received 8 March 2016 Received in final form 13 June 2016 Accepted 20 June 2016 Abstract. The effective Neodymium cumulative fission yields for 235 U have been measured in the fast reactor PHENIX relatively to the 235 U fission cross-section. The data were derived from isotope-ratio measurements obtained in the frame of the PROFIL-1 PROFIL-2A and PROFIL-2B programs. The interpretations of the experimental programs were performed with the ERANOS code in association with the Joint Evaluated Fission and Fusion library . Final results for 143 Nd 145 Nd 146 Nd 148 Nd and 150 Nd were and respectively. The relative uncertainties attached to each of the cumulative fission yields lie between and . The main source of uncertainty is due to the fluence scaling procedure 2 E. Privas et al. EPJ Nuclear Sci. Technol. 2 32 2016 Table 1. Cumulative fission yields and relative uncertainties of 143 Nd 145 Nd 146 Nd 148 Nd and 150 Nd for the fission of 235 U in the fast-energy range recommended in the evaluated nuclear data libraries ENDF B 3 JENDL 4 and JEFF 5 . Neodymium isotopes ENDF 500 keV 400 keV 500 keV 143 Nd .