2020-12-01T09:40:22Z
http://oa.upm.es/cgi/oai2
oai:oa.upm.es:15788
2016-04-21T16:05:25Z
7374617475733D707562
7375626A656374733D666973696361
747970653D61727469636C65
Analysis of different uncertainty activation cross section data libraries for LWR, ADS and DEMO neutron spectra
Diez de la Obra, Carlos Javier
Cabellos de Francisco, Oscar Luis
MartÃnez, J.S.
Physics
This work is aimed to present the main differences of nuclear data uncertainties among three different nuclear data libraries: EAF-2007, EAF-2010 and SCALE-6.0, under different neutron spectra: LWR, ADS and DEMO (fusion). To take into account the neutron spectrum, the uncertainty data are collapsed to onegroup. That is a simple way to see the differences among libraries for one application. Also, the neutron spectrum effect on different applications can be observed. These comparisons are presented only for (n,fission), (n,gamma) and (n,p) reactions, for the main transuranic isotopes (234,235,236,238U, 237Np, 238,239,240,241Pu, 241,242m,243Am, 242,243,244,245,246,247,248Cm, 249Bk, 249,250,251,252Cf). But also general comparisons among libraries are presented taking into account all included isotopes. In other works, target accuracies are presented for nuclear data uncertainties; here, these targets are compared with uncertainties on the above libraries. The main results of these comparisons are that EAF-2010 has reduced their uncertainties for many isotopes from EAF-2007 for (n,gamma) and (n,fission) but not for (n,p); SCALE-6.0 gives lower uncertainties for (n,fission) reactions for ADS and PWR applications, but gives higher uncertainties for (n,p) reactions in all applications. For the (n,gamma) reaction, the amount of isotopes which have higher uncertainties is quite similar to the amount of isotopes which have lower uncertainties when SCALE-6.0 and EAF-2010 are compared. When the effect of neutron spectra is analysed, the ADS neutron spectrum obtained the highest uncertainties for (n,gamma) and (n,fission) reactions of all libraries.
E.T.S.I. Industriales (UPM)
http://creativecommons.org/licenses/by-nc-nd/3.0/es/
2012-05
info:eu-repo/semantics/article
Article
EPJ Web of Conferences, ISSN 2100-014X, 2012-05, Vol. 27, No. 5
PeerReviewed
application/pdf
eng
http://www.epj-conferences.org/articles/epjconf/abs/2012/09/epjconf_ncsc2_00005/epjconf_ncsc2_00005.html
info:eu-repo/semantics/openAccess
info:eu-repo/semantics/altIdentifier/doi/10.1051/epjconf/20122700005
http://oa.upm.es/15788/