Abstract
view Abstract Citations (19) References (7) Co-Reads Similar Papers Volume Content Graphics Metrics Export Citation NASA/ADS Os-187(n, n') inelastic cross section at 34 keV Macklin, R. L. ; Hill, N. W. ; Harvey, J. A. ; Winters, R. R. Abstract A measurement of the Os-187 inelastic neutron cross section to the 3/2(-) 9.75 keV excited state with 34 + or - 2 keV incident neutrons gives 1.5 + or - 0.2 barns. Pulsed neutron time of flight and a short anisotropic iron-aluminum filter allowed separation of the inelastic yield from the 1/2(-) ground-state elastic yield at 24 keV. The influence of the result on r-process galactic age calculations via the Re-Os decay chronometer is discussed, and the need for further theoretical calculations is emphasized. Publication: The Astrophysical Journal Pub Date: November 1983 DOI: 10.1086/161456 Bibcode: 1983ApJ...274..408M Keywords: Galactic Evolution; Neutron Cross Sections; Nuclear Reactions; Osmium Isotopes; Cosmology; Neutron Beams; Radioactive Decay; Rhenium Isotopes; Astrophysics full text sources ADS |
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