%0 Journal Article
%T High-accuracy determination of the neutron flux at n_TOF
%A n_TOF Collaboration (Barbagallo, M. et al
%A Domingo-Pardo, C.
%A Giubrone, G.
%A Tain, J. L.
%J European Physical Journal A
%D 2013
%V 49
%N 12
%I Springer
%@ 1434-6001
%G English
%F n_TOFCollaborationBarbagallo_etal2013
%O WOS:000328351000001
%O exported from refbase (https://references.ific.uv.es/refbase/show.php?record=1663), last updated on Thu, 09 Jan 2014 09:58:43 +0000
%X The neutron flux of the n_TOF facility at CERN was measured, after installation of the new spallation target, with four different systems based on three neutron-converting reactions, which represent accepted cross sections standards in different energy regions. A careful comparison and combination of the different measurements allowed us to reach an unprecedented accuracy on the energy dependence of the neutron flux in the very wide range (thermal to 1 GeV) that characterizes the n_TOF neutron beam. This is a pre-requisite for the high accuracy of cross section measurements at n_TOF. An unexpected anomaly in the neutron-induced fission cross section of U-235 is observed in the energy region between 10 and 30keV, hinting at a possible overestimation of this important cross section, well above currently assigned uncertainties.
%R 10.1140/epja/i2013-13156-x
%U https://doi.org/10.1140/epja/i2013-13156-x
%P 156 - 11pp