An official website of the European Union How do you know?      
European Commission logo
JRC Publications Repository Menu

Improved lead and Bismuth (n,gamma) Cross Sections and their Astrophysical Impact

cover
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 -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 -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 204,206,207Pb and 209Bi 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.
2008-08-07
EDP Sciences
JRC41862
http://nd2007.edpsciences.org/,    https://publications.jrc.ec.europa.eu/repository/handle/JRC41862,   
10.1051/ndata:07493,   
Language Citation
NameCountryCityType
Datasets
IDTitlePublic URL
Dataset collections
IDAcronymTitlePublic URL
Scripts / source codes
DescriptionPublic URL
Additional supporting files
File nameDescriptionFile type 
Show metadata record  Copy citation url to clipboard  Download BibTeX
Items published in the JRC Publications Repository are protected by copyright, with all rights reserved, unless otherwise indicated. Additional information: https://ec.europa.eu/info/legal-notice_en#copyright-notice