Mosconi, M.Mengoni, A.Heil, M.Capote del Villar, RamónLozano Leyva, Manuel LuisQuesada Molina, José ManuelWisshak, K.2020-07-282020-07-282005Mosconi, M., Mengoni, A., Heil, M., Capote del Villar, R., Lozano Leyva, M.L., Quesada Molina, J.M. y Wisshak, K. (2005). Neutron capture cross sections for the Re/Os clock. En International Conference on Nuclear Data for Science and Technology (1335-1338), Santa Fe, Nuevo México, (Estados Unidos): AIP Publishing.0094-243X (impreso)1551-7616 (electrónico)https://hdl.handle.net/11441/99907The radioactive decay of 187Re → 187Os (t 1/2 = 43 Gyr) is suited for dating the onset of heavy-element nucleosynthesis. The radiogenic contribution to the 187Os abundance is the difference between the natural abundance and the corresponding s-process component. This component can be obtained via the well-established σN systematics using the neighboring s-only isotope 186Os, provided the neutron-capture cross sections of both isotopes are known with sufficient accuracy. We report on a new set of experiments performed with a C 6D6 detector array at the n_TOF neutron spallation facility of CERN. The capture cross sections of 186Os, 187Os, and 188Os have been measured in the neutron-energy range between 1 eV and 1 MeV, and Maxwellian-averaged cross sections were deduced for the relevant thermal energies from kT=5 keV to 100 keV.application/pdf4 p.engAttribution-NonCommercial-NoDerivatives 4.0 Internacionalhttp://creativecommons.org/licenses/by-nc-nd/4.0/info:eu-repo/semantics/conferenceObjectinfo:eu-repo/semantics/openAccesshttps://doi.org/10.1063/1.1945252