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Abstract

New recommendations for neutron-induced reactions on {23}Na are presented for incident energies from thermal to 200 MeV including resonance parameters up to 1 MeV, and covariance files in the resonance and fast neutron regions. Calculations are based on the nuclear reaction code TALYS and covariances in the fast neutron range are obtained with a Monte Carlo approach. Discrepancies between experimental data and evaluations are presented, indicating needs for new measurements. Validations with integral benchmarks and a simplified model of the Kalimer-600 Sodium Fast Reactor are presented with a special emphasis on the void coefficient, including its uncertainty assessment. Finally, conclusions on the state of knowledge of neutron induced reactions on sodium are presented with recommendations for new measurements.

Additional information

Authors: ROCHMAN D, Nuclear Research and Consultancy Group NRG, Petten (NL);KONING A J, Nuclear Research and Consultancy Group NRG, Petten (NL);DA CRUZ D F, Nuclear Research and Consultancy Group NRG, Petten (NL);ARCHIER P, Département de Recherches sur la Fusion Contrôlée, Association Euratom-CEA sur la Fusion, CEA Cadarache, Saint-Paul-lez-Durance (FR);TOMMASI J, Département de Recherches sur la Fusion Contrôlée, Association Euratom-CEA sur la Fusion, CEA Cadarache, Saint-Paul-lez-Durance (FR)
Bibliographic Reference: An article published in: Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Volume 612, Issue 2, January 2010, Pages 374-387
Availability: This article can be accessed online by subscribers, and can be ordered online by non-subscribers, at: http://dx.doi.org/10.1016/j.nima.2009.10.147
Record Number: 201010036 / Last updated on: 2010-01-13
Category: PUBLICATION
Original language: en
Available languages: en