Bound-state decay of rhenium-187

Details Bound-state decay of rhenium-187 Bound-state decay of rhenium-187

Jun 1984

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984apj...281..363w&link_type=abstract

Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 281, June 1, 1984, p. 363-366.

Astronomy and Astrophysics

Astrophysics

9

Abundance, Half Life, Nuclear Fusion, Radioactive Decay, Rhenium Isotopes, Weak Energy Interactions, Decay Rates, Dirac Equation, Electron States, Galactic Evolution, Radioactive Age Determination, Thomas-Fermi Model

Scientific paper

The ratio of bound-state to continuum beta-decay of the potential cosmochronometer Re-187 using Dirac wavefunctions in a Thomas-Fermi atomic potential, including exchange corrections is calculated. A bound-state decay of not greater than about 7 percent is found for the neutral atom. This differs from a previous calculation using hydrogenic wavefunctions (58 percent), and from a comparison of published laboratory and geochemical measurements (53 + or - 35 percent).

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