Development of a Reference Database for Beta-Delayed Neutron Emission
Abstract
Beta-delayed neutron emission is important for nuclear structure and astrophysics as well as for reactor applications. Significant advances in nuclear experimental techniques in the past two decades have led to a wealth of new measurements that remain to be incorporated in the databases. We report on a coordinated effort to compile and evaluate all the available beta-delayed neutron emission data. The different measurement techniques have been assessed and the data have been compared with semi-microscopic and microscopic-macroscopic models. The new microscopic database has been tested against aggregate total delayed neutron yields, time-dependent group parameters in 6-and 8-group re-presentation, and aggregate delayed neutron spectra. New recommendations of macroscopic delayed-neutron data for fissile materials of interest to applications are also presented. The new Reference Database for Beta-Delayed Neutron Emission Data is available online at: http://www-nds.iaea.org/beta-delayed-neutron/database.html.
Cite
@article{arxiv.2102.01165,
title = {Development of a Reference Database for Beta-Delayed Neutron Emission},
author = {P. Dimitriou and I. Dillmann and B. Singh and V. Piksaikin and K. P. Rykaczewski and J. L. Tain and A. Algora and K. Banerjee and I. N. Borzov and D. Cano-Ott and S. Chiba and M. Fallot and D. Foligno and R. Grzywacz and X. Huang and T. Marketin and F. Minato and G. Mukherjee and B. C. Rasco and A. Sonzogni and M. Verpelli and A. Egorov and M. Estienne and L. Giot and D. Gremyachkin and M. Madurga and E. A. McCutchan and E. Mendoza and K. V. Mitrofanov and M. Narbonne and P. Romojaro and A. Sanchez-Caballero and N. D. Scielzo},
journal= {arXiv preprint arXiv:2102.01165},
year = {2021}
}
Comments
96 pages, IAEA CRP report, preliminary version