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Measurement of 139-La(n,gamma) cross section
dc.contributor.author | Calviño Tavares, Francisco |
dc.contributor.author | Cortés Rossell, Guillem Pere |
dc.contributor.author | Poch Parés, Agustí |
dc.contributor.author | Pretel Sánchez, Carme |
dc.contributor.other | Universitat Politècnica de Catalunya. Departament de Física i Enginyeria Nuclear |
dc.date.accessioned | 2011-01-21T10:53:07Z |
dc.date.available | 2011-01-21T10:53:07Z |
dc.date.created | 2005 |
dc.date.issued | 2005 |
dc.identifier.citation | Calviño, 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.isbn | 0-7354-0313-9 |
dc.identifier.uri | http://hdl.handle.net/2117/11136 |
dc.description.abstract | We 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.extent | 5 p. |
dc.language.iso | eng |
dc.publisher | American Institute of Physics (AIP) |
dc.rights | Attribution-NonCommercial-NoDerivs 3.0 Spain |
dc.rights.uri | http://creativecommons.org/licenses/by-nc-nd/3.0/es/ |
dc.subject | Àrees temàtiques de la UPC::Física |
dc.subject.lcsh | Neutrons |
dc.subject.lcsh | Radiative capture |
dc.subject.lcsh | Stars--Structure |
dc.title | Measurement of 139-La(n,gamma) cross section |
dc.type | Conference report |
dc.subject.lemac | Neutrons |
dc.subject.lemac | Estels -- Estructura |
dc.subject.lemac | Radioactivitat |
dc.contributor.group | Universitat Politècnica de Catalunya. GREENER - Grup de recerca d'estudis energètics i de les radiacions |
dc.relation.publisherversion | http://scitation.aip.org/dbt/dbt.jsp?KEY=APCPCS&Volume=819&Issue=1 |
dc.rights.access | Restricted access - publisher's policy |
local.identifier.drac | 2331117 |
dc.description.version | Postprint (published version) |
local.citation.author | Calviño, F.; Cortes, G.; Poch, A.; Pretel, M. |
local.citation.contributor | International Symposium on Capture Gamma-Ray Spectroscopy and Related Topics |
local.citation.pubplace | Notre Dame, Indiana |
local.citation.publicationName | 12 International Symposium on Capture Gamma-ray Spectroscopy and Related Topics |
local.citation.startingPage | 283 |
local.citation.endingPage | 287 |