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|Title:||Neutron Capture Measurements on the s-Process Termination Isotopes Lead and Bismuth|
|Authors:||DOMINGO PARDO César; PLOMPEN ARJAN; RULLHUSEN PETER; N_TOF COLLABORATION The|
|Citation:||Proceedings Of Science. Nuclear Astrophysics - Nuclei in the Cosmos IX vol. POS(NIC - IX) 058 p. 1-7|
|Publisher:||Proceedings Of Science, SISSA|
|Type:||Contributions to Conferences|
|Abstract:||The neutron capture cross sections of 204Pb and 206Pb have been measured at the CERN n_TOF installation using the time of flight method with the pulse height weighting technique. In a preliminary analysis of 204Pb we have determined by first time the capture cross sections for two strong s-wave resonances below 2.5 keV, which seem to enhance the Maxwellian Averaged Cross Section at kT = 5 keV by about a factor of two with respect to the value assumed so far [1, 2]. In 206Pb we have determined capture cross sections for a large number (97) of resonances, which were not reported in the two previous capture measurements [3, 4]. We discuss preliminary implications of the new cross sections in the stellar nucleosynthesis of the Pb isotopes.|
|JRC Institute:||Institute for Reference Materials and Measurements|
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