New accurate measurements of neutron emission probabilities for relevant fission products

Agramunt J., Tain J. L. , Albiol F., Algora A., Caballero-Folch R., Calvino F., ...Daha Fazla

International Conference on Nuclear Data for Science and Technology (ND), Bruges, Belçika, 11 - 16 Eylül 2016, cilt.146 identifier identifier


We have performed new accurate measurements of the beta-delayed neutron emission probability for ten isotopes of the elements Y, Sb, Te and I. These are fission products that either have a significant contribution to the fraction of delayed neutrons in reactors or are relatively close to the path of the astrophysical r process. The measurements were performed with isotopically pure radioactive beams using a constant and high efficiency neutron counter and a low noise beta detector. Preliminary results are presented for six of the isotopes and compared with previous measurements and theoretical calculations.