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Ni-62(n,gamma) and Ni-63(n,gamma) cross sections measured at the n_TOF facility at CERN

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Ni-62(n,gamma) and Ni-63(n,gamma) cross sections measured at the n_TOF facility at CERN

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dc.contributor.author Lederer, Claudia
dc.contributor.author Domingo Pardo, César
dc.contributor.author Giubrone, Giuseppe
dc.contributor.author Taín Enríquez, José Luis
dc.date.accessioned 2014-10-14T10:50:27Z
dc.date.available 2014-10-14T10:50:27Z
dc.date.issued 2014
dc.identifier.citation Lederer, Claudia Domingo Pardo, César Giubrone, Giuseppe Taín Enríquez, José Luis 2014 Ni-62(n,gamma) and Ni-63(n,gamma) cross sections measured at the n_TOF facility at CERN Physical Review C 89 2 25810-1 25810-11
dc.identifier.uri http://hdl.handle.net/10550/39167
dc.description.abstract 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 nTOF 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 nTOF. 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.
dc.language.iso eng
dc.relation.ispartof Physical Review C, 2014, vol. 89, num. 2, p. 25810-1-25810-11
dc.subject Física
dc.title Ni-62(n,gamma) and Ni-63(n,gamma) cross sections measured at the n_TOF facility at CERN
dc.type journal article es_ES
dc.date.updated 2014-10-14T10:50:27Z
dc.identifier.doi 10.1103/PhysRevC.89.025810
dc.identifier.idgrec 098874
dc.rights.accessRights open access es_ES

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