%0 Journal Article
%T Ni-62(n,gamma) and Ni-63(n,gamma) cross sections measured at the n_TOF facility at CERN
%A n_TOF Collaboration (Lederer, C. et al
%A Giubrone, G.
%A Tain, J. L.
%J Physical Review C
%D 2014
%V 89
%N 2
%I Amer Physical Soc
%@ 0556-2813
%G English
%F n_TOFCollaborationLederer_etal2014
%O WOS:000332175500012
%O exported from refbase (https://references.ific.uv.es/refbase/show.php?record=1717), last updated on Tue, 29 Apr 2014 16:41:52 +0000
%X The cross section of the Ni-62(n,gamma) reaction was measured with the time-of-flight technique at the neutron time-of-flight facility n_TOF at CERN. Capture kernels of 42 resonances were analyzed up to 200 keV neutron energy and Maxwellian averaged cross sections (MACS) from kT = 5-100 keV were calculated. With a total uncertainty of 4.5%, the stellar cross section is in excellent agreement with the the KADoNiS compilation at kT = 30 keV, while being systematically lower up to a factor of 1.6 at higher stellar temperatures. The cross section of the Ni-63(n,gamma) reaction was measured for the first time at n_TOF. We determined unresolved cross sections from 10 to 270 keV with a systematic uncertainty of 17%. These results provide fundamental constraints on s-process production of heavier species, especially the production of Cu in massive stars, which serve as the dominant source of Cu in the solar system.
%R 10.1103/PhysRevC.89.025810
%U http://arxiv.org/abs/arXiv:1403.4778
%U https://doi.org/10.1103/PhysRevC.89.025810
%P 025810-11pp