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A best set of neutron-capture cross section has been evaluated for the most important s-process isotopes. With this data base, s-process studies have been carried out using the traditional model which assumes a steady neutron flux and an exponeatial distribution of neturon irradiations. The calculated sigmaN curve is in excellent agreement with the empricial sigmaN-values of pure s-process nuclei. Simultaneously, good agreement is found between the difference of solar and s-process abundances and the abundance of pure r-process nuclei. We also discuss the abundance pattern of the iron group elements where our s-process results complement the abundances obtained from explosive nuclear burning. The results obrtained from the tradiational s-process model such as seed abundances, mean neutron irradiations, or neutron densities are compared to recent stellar model calculations which assume the He-burning shells of red giant stars an the site for the s-process.

S-process studies in the light of new experimental cross sections - Distribution of neutron fluences and r-process residuals