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dc.contributor.authorCalviño Tavares, Francisco
dc.contributor.authorCortés Rossell, Guillem Pere
dc.contributor.authorPoch Parés, Agustí
dc.contributor.authorPretel Sánchez, Carme
dc.contributor.otherUniversitat Politècnica de Catalunya. Departament de Física i Enginyeria Nuclear
dc.date.accessioned2011-01-21T10:53:07Z
dc.date.available2011-01-21T10:53:07Z
dc.date.created2005
dc.date.issued2005
dc.identifier.citationCalviño, F. [et al.]. Measurement of 139-La(n,gamma) cross section. A: International Symposium on Capture Gamma-Ray Spectroscopy and Related Topics. "12 International Symposium on Capture Gamma-ray Spectroscopy and Related Topics". Notre Dame, Indiana: American Institute of Physics (AIP), 2005, p. 283-287.
dc.identifier.isbn0-7354-0313-9
dc.identifier.urihttp://hdl.handle.net/2117/11136
dc.description.abstractWe measured the neutron capture cross section of 139La relative to 197Au in the energy range of 0.6 eV to 9 keV at n_TOF, the neutron time-of-flight facility at CERN. After a description of the experimental apparatus, we discuss data analysis procedures. The data were fitted using R-matrix formalism to extract resonance parameters which, in turn, were used to calculate average level spacings D0 = 268 ± 22 eV and D1 < 250 eV, and neutron strength functions S0 = (0.79 ± 0.03)×10-4 and S1 = (0.73 ± 0.05)×10-4 for s- and p-wave resonances. The data also were used to determine Maxwellian-averaged neutron capture cross sections which, in turn, were used to calculate the 139La abundance synthesized in a stellar model of the main component of the s process.
dc.format.extent5 p.
dc.language.isoeng
dc.publisherAmerican Institute of Physics (AIP)
dc.rightsAttribution-NonCommercial-NoDerivs 3.0 Spain
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/3.0/es/
dc.subjectÀrees temàtiques de la UPC::Física
dc.subject.lcshNeutrons
dc.subject.lcshRadiative capture
dc.subject.lcshStars--Structure
dc.titleMeasurement of 139-La(n,gamma) cross section
dc.typeConference report
dc.subject.lemacNeutrons
dc.subject.lemacEstels -- Estructura
dc.subject.lemacRadioactivitat
dc.contributor.groupUniversitat Politècnica de Catalunya. GREENER - Grup de recerca d'estudis energètics i de les radiacions
dc.relation.publisherversionhttp://scitation.aip.org/dbt/dbt.jsp?KEY=APCPCS&Volume=819&Issue=1
dc.rights.accessRestricted access - publisher's policy
drac.iddocument2331117
dc.description.versionPostprint (published version)
upcommons.citation.authorCalviño, F.; Cortes, G.; Poch, A.; Pretel, M.
upcommons.citation.contributorInternational Symposium on Capture Gamma-Ray Spectroscopy and Related Topics
upcommons.citation.pubplaceNotre Dame, Indiana
upcommons.citation.publishedtrue
upcommons.citation.publicationName12 International Symposium on Capture Gamma-ray Spectroscopy and Related Topics
upcommons.citation.startingPage283
upcommons.citation.endingPage287


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