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Statements

Subject Item
n2:RIV%2F00216208%3A11320%2F08%3A00206473%21RIV10-MSM-11320___
rdf:type
n8:Vysledek skos:Concept
dcterms:description
A series of (n,gamma) neutron capture measurements on the lead isotopes and bismuth have been carried Out at the CERN n_TOF installation in the neutron energy range from 1 eV up to 1 MeV. At n_TOF, contaminations due to scattered neutrons were reduced down to a negligible level by using improved gamma-ray detectors with very low neutron sensitivity. The background level has been determined precisely from a complementary measurement. Other experimental effects related to the electronic threshold in the detectors and the angular distribution of the prompt gamma-rays were investigated via Monte Carlo simulations and could be taken in account in the analysis of the capture data. With this set of measurements the energy differential (n,gamma) cross sections of Pb-204,Pb-206,Pb-207 and Bi-209 have been determined with good accuracy. The information obtained in this work becomes of interest for constraining r-process calculations and in particular for the Th/U cosmochronometer. A series of (n,gamma) neutron capture measurements on the lead isotopes and bismuth have been carried Out at the CERN n_TOF installation in the neutron energy range from 1 eV up to 1 MeV. At n_TOF, contaminations due to scattered neutrons were reduced down to a negligible level by using improved gamma-ray detectors with very low neutron sensitivity. The background level has been determined precisely from a complementary measurement. Other experimental effects related to the electronic threshold in the detectors and the angular distribution of the prompt gamma-rays were investigated via Monte Carlo simulations and could be taken in account in the analysis of the capture data. With this set of measurements the energy differential (n,gamma) cross sections of Pb-204,Pb-206,Pb-207 and Bi-209 have been determined with good accuracy. The information obtained in this work becomes of interest for constraining r-process calculations and in particular for the Th/U cosmochronometer.
dcterms:title
Improved lead and bismuth (n,gamma) cross sections and their astrophysical impact Improved lead and bismuth (n,gamma) cross sections and their astrophysical impact
skos:prefLabel
Improved lead and bismuth (n,gamma) cross sections and their astrophysical impact Improved lead and bismuth (n,gamma) cross sections and their astrophysical impact
skos:notation
RIV/00216208:11320/08:00206473!RIV10-MSM-11320___
n3:aktivita
n15:Z n15:P
n3:aktivity
P(LA08015), Z(MSM0021620859)
n3:dodaniDat
n21:2010
n3:domaciTvurceVysledku
n5:7876009 n5:4987020
n3:druhVysledku
n22:D
n3:duvernostUdaju
n13:S
n3:entitaPredkladatele
n12:predkladatel
n3:idSjednocenehoVysledku
371694
n3:idVysledku
RIV/00216208:11320/08:00206473
n3:jazykVysledku
n4:eng
n3:klicovaSlova
Improved; bismuth; gamma; cross; sections; their; astrophysical; impact
n3:klicoveSlovo
n10:astrophysical n10:bismuth n10:their n10:Improved n10:cross n10:sections n10:gamma n10:impact
n3:kontrolniKodProRIV
[941AAD94D562]
n3:mistoKonaniAkce
Francie
n3:mistoVydani
Francie
n3:nazevZdroje
INTERNATIONAL CONFERENCE ON NUCLEAR DATA FOR SCIENCE AND TECHNOLOGY
n3:obor
n9:BG
n3:pocetDomacichTvurcuVysledku
2
n3:pocetTvurcuVysledku
3
n3:projekt
n18:LA08015
n3:rokUplatneniVysledku
n21:2008
n3:tvurceVysledku
Krtička, Milan Domingo-Pardo, Cesar Bečvář, František
n3:typAkce
n16:WRD
n3:wos
000268672000142
n3:zahajeniAkce
2008-01-01+01:00
n3:zamer
n20:MSM0021620859
s:numberOfPages
4
n6:hasPublisher
E D P SCIENCES
n19:isbn
978-2-7598-0091-9
n14:organizacniJednotka
11320