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dc.creatorGuerrero Sánchez, Carloses
dc.creatorLerendegui Marco, Jorgees
dc.creatorDomingo Pardo, Césares
dc.creatorCasanovas, A.es
dc.creatorDressler, R.es
dc.creatorHalfon, Shlomies
dc.creatorHeinitz, S.es
dc.creatorKivel, Nikoes
dc.creatorKöster, Ullriches
dc.creatorQuesada Molina, José Manueles
dc.creatorCortés Giraldo, Miguel Antonioes
dc.date.accessioned2017-12-12T13:20:26Z
dc.date.available2017-12-12T13:20:26Z
dc.date.issued2017
dc.identifier.citationGuerrero Sánchez, C., Lerendegui Marco, J., Domingo Pardo, C., Casanovas, A., Dressler, R., Halfon, S.,...,Cortés Giraldo, M.A. (2017). Time-of-flight and activation experiments on 147Pm and 171Tm for astrophysics. EPJ Web of Conferences, 146, 1-4.
dc.identifier.issn2101-6275 (impreso)es
dc.identifier.issn2100-014X (electrónico)es
dc.identifier.urihttp://hdl.handle.net/11441/67526
dc.description.abstractThe neutron capture cross section of several key unstable isotopes acting as branching points in the s-process are crucial for stellar nucleosynthesis studies, but they are very challenging to measure due to the difficult production of sufficient sample material, the high activity of the resulting samples, and the actual (n,γ) measurement, for which high neutron fluxes and effective background rejection capabilities are required. As part of a new program to measure some of these important branching points, radioactive targets of 147Pm and 171 Tm have been produced by irradiation of stable isotopes at the ILL high flux reactor. Neutron capture on 146Nd and 170Er at the reactor was followed by beta decay and the resulting matrix was purified via radiochemical separation at PSI. The radioactive targets have been used for time-of-flight measurements at the CERN n TOF facility using the 19 and 185 m beam lines during 2014 and 2015. The capture cascades were detected using a set of four C6D6 scintillators, allowing to observe the associated neutron capture resonances. The results presented in this work are the first ever determination of the resonance capture cross section of 147Pm and 171 Tm. Activation experiments on the same 147Pm and 171 Tm targets with a high-intensity 30 keV quasi-Maxwellian flux of neutrons will be performed using the SARAF accelerator and the Liquid-Lithium Target (LiLiT) in order to extract the corresponding Maxwellian Average Cross Section (MACS). The status of these experiments and preliminary results will be presented and discussed as well.es
dc.description.sponsorshipEspaña, FPA2013-45083-Pes
dc.description.sponsorshipEspaña, FPA2014-53290-C2-2-Pes
dc.formatapplication/pdfes
dc.language.isoenges
dc.publisherEDP Scienceses
dc.relation.ispartofEPJ Web of Conferences, 146, 1-4.
dc.rightsAttribution-NonCommercial-NoDerivatives 4.0 Internacional*
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/*
dc.titleTime-of-flight and activation experiments on 147Pm and 171Tm for astrophysicses
dc.typeinfo:eu-repo/semantics/articlees
dcterms.identifierhttps://ror.org/03yxnpp24
dc.type.versioninfo:eu-repo/semantics/publishedVersiones
dc.rights.accessRightsinfo:eu-repo/semantics/openAccesses
dc.contributor.affiliationUniversidad de Sevilla. Departamento de Física Atómica, Molecular y Nucleares
dc.relation.projectIDFPA2013-45083-Pes
dc.relation.projectIDFPA2014-53290-C2-2-Pes
dc.relation.publisherversionhttp://dx.doi.org/10.1051/epjconf/201714601007es
dc.identifier.doi10.1051/epjconf/201714601007es
idus.format.extent4 p.es
dc.journaltitleEPJ Web of Conferenceses
dc.publication.volumen146es
dc.publication.initialPage1es
dc.publication.endPage4es

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