"(Neutron capture." . . "Beta decay." . . "Meteorites." . . "Neutron flux." . . "Neutron cross sections." . . "Nuclear isobars." . . "Radioactive decay." . . "Nuclear reactions)" . . "(Nuclear reactions." . "Nuclear binding energy." . . "(Solar system." . . "Solar system)" . "Distribution." . . . . "CALIFORNIA INST OF TECH PASADENA." . . . "Nucleosynthesis of heavy elements by neutron capture" . "Nucleosynthesis of heavy elements by neutron capture"@en . . . . . . . . . "Nucleosynthesis of elements heavier than the iron group by neutron capture on both slow and fast time scales is evaluated. The s-process calculations of Clayton, Fowler, Hull, and Zimmerman (Ann. Phys. 12:331, 1961) were revised to include more recent experimental results on abundances and neutron capture cross-sections. The solar-system s-process abundances indicate a history of neutron exposure distributions characterized by decreasing probability of high integrated flux; an exponential exposure distribution is extracted. Estimates are made of the s-process contribution to each isotopic abundance; a table gives the amounts of elements produced by each process in the solar-system material. The r-process calculations are carried out using a semi-empirical atomic-mass law to determine neutron-binding energies and beta-decay probabilities. The solar-system r-process material has probably been synthesized in two distinct types of environments. (Author)."@en . . . . . . . . . . . . . . . . . . . . . . . . "Synthesis." . . "Nuclear energy levels." . .