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Evaluation of Neutron Cross Sections for a Complete Set of Nd Isotopes.

DE2008921937

Publication Date	2007
Personal Author	Kim, H.; Herman, M.; Mughabghab, S. F.; Oblozinsky, P.; Rochman, D.
Page Count	36
Abstract	Neutron cross sections for a complete set of Nd isotopes, (sup 142,143,144,145, 146,147,148,150)Nd, were evaluated in the incident energy range from 10(sup -5) eV to 20 MeV. In the low energy region, including thermal and resolved resonances, our evaluations are based on the latest data published in the Atlas of Neutron Resonances. In the unresolved resonance region we performed additional evaluation by using the averages of the resolved resonances and adjusting them to the experimental data. In the fast neutron region, we used the nuclear reaction model code EMPIRE-2.19 validated against the experimental data.The results are compared to the existing nuclear data libraries, including ENDF/B-VI.8, JENDL-3.3 and JEFF-3.1, and to the available experimental data. The new evaluations are suitable for neutron transport calculations and they were adopted by the new evaluated nuclear data file of the United States, ENDF/B-VII.0, released in December 2006.
Keywords	Neutrons Isotopes Cross sections Energy range Evaluation Fast neutrons Neutron transport Nuclear data collections Nuclear reactions Resonance
Source Agency	Technical Information Center Oak Ridge Tennessee
Corporate Authors	Brookhaven National Lab., Upton, NY.; Department of Energy, Washington, DC.
Supplemental Notes	Sponsored by Department of Energy, Washington, DC.
Document Type	Technical Report
NTIS Issue Number	200817
Contract Number	DE-AC0298CH10886

Evaluation of Neutron Cross Sections for a Complete Set of Nd Isotopes.

Evaluation of Neutron Cross Sections for a Complete Set of Nd Isotopes.
DE2008921937

Publication Date	2007
Personal Author	Kim, H.; Herman, M.; Mughabghab, S. F.; Oblozinsky, P.; Rochman, D.
Page Count	36
Abstract	Neutron cross sections for a complete set of Nd isotopes, (sup 142,143,144,145, 146,147,148,150)Nd, were evaluated in the incident energy range from 10(sup -5) eV to 20 MeV. In the low energy region, including thermal and resolved resonances, our evaluations are based on the latest data published in the Atlas of Neutron Resonances. In the unresolved resonance region we performed additional evaluation by using the averages of the resolved resonances and adjusting them to the experimental data. In the fast neutron region, we used the nuclear reaction model code EMPIRE-2.19 validated against the experimental data.The results are compared to the existing nuclear data libraries, including ENDF/B-VI.8, JENDL-3.3 and JEFF-3.1, and to the available experimental data. The new evaluations are suitable for neutron transport calculations and they were adopted by the new evaluated nuclear data file of the United States, ENDF/B-VII.0, released in December 2006.
Keywords	Neutrons Isotopes Cross sections Energy range Evaluation Fast neutrons Neutron transport Nuclear data collections Nuclear reactions Resonance
Source Agency	Technical Information Center Oak Ridge Tennessee
Corporate Authors	Brookhaven National Lab., Upton, NY.; Department of Energy, Washington, DC.
Supplemental Notes	Sponsored by Department of Energy, Washington, DC.
Document Type	Technical Report
NTIS Issue Number	200817
Contract Number	DE-AC0298CH10886