Web of Conferences
Open Access
Issue ND 2007
2007
Article Number 329
Number of page(s) 3
Section Standard cross sections
DOI http://dx.doi.org/10.1051/ndata:07131
Published online 17 June 2008

International Conference on Nuclear Data for Science and Technology 2007
DOI: 10.1051/ndata:07131

Validation of evaluated neutron standard cross sections

S. Badikov and T. Golashvili

Central Research Institute of Management, Economics and Information (Atominform), 127434 Moscow, Russia

badikov@ainf.ru
gol@ainf.ru

Published online: 21 May 2008

Abstract
Some steps of the validation and verification of the new version of the evaluated neutron standard cross sections were carried out. In particular, 1) the evaluated covariance data was checked for physical consistency, 2) energy-dependent evaluated cross-sections were tested in most important neutron benchmark field - 252Cf spontaneous fission neutron field, 3) a procedure of folding differential standard neutron data in group representation for preparation of specialized libraries of the neutron standards was verified. The results of the validation and verification of the neutron standards can be summarized as follows: a) the covariance data of the evaluated neutron standards is physically consistent since all the covariance matrices of the evaluated cross sections are positive definite, b) the 252Cf spectrum averaged standard cross-sections are in agreement with the evaluated integral data (except for 197Au(n,γ) reaction), c) a procedure of folding differential standard neutron data in group representation was tested, as a result a specialized library of neutron standards in the ABBN 28-group structure was prepared.



© CEA 2008