Abstract
view Abstract Citations (29) References (23) Co-Reads Similar Papers Volume Content Graphics Metrics Export Citation NASA/ADS The Stellar Neutron Capture Cross Sections of 94Zr and 96Zr Toukan, K. A. ; Kaeppeler, F. Abstract The neutron capture cross sections of Zr-94 and Zr-96 have been determined relative to that of gold by means of the activation method. The samples were irradiated in a quasi-stellar neutron spectrum for kT = 25 keV using the Li-7(p, n)Be-7 reaction near threshold. Variation of the experimental conditions in different activations and the use of different samples allowed for the reliable determination of corrections and the evaluation of systematic uncertainties. The resulting stellar cross sections can be given with uncertainties around 4 percent, considerably lower than previous data. The new data made it possible for the first time to deduce the s-process neutron density from the branching at Zr-95. Publication: The Astrophysical Journal Pub Date: January 1990 DOI: 10.1086/168243 Bibcode: 1990ApJ...348..357T Keywords: Cool Stars; Neutron Cross Sections; Red Giant Stars; Zirconium Isotopes; Neutron Spectra; Nuclear Reactions; Stellar Interiors; Astrophysics; LABORATORY SPECTRA; NUCLEAR REACTIONS; STARS: ABUNDANCES full text sources ADS | data products SIMBAD (2)
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