Capture cross section measurements of krypton and xenon isotopes and the fundamental parameters of the s-process

Abstract

The capture cross sections of Kr and Xe isotopes have been determined by a fast cyclic activation technique. The data were used to performs-process calculations with phenomenological models. The weak and themain s-process component were studied. Astrophysical parameters weredetermined in the frame of the model, i.e., iron seed abundance, theneutron exposure, average number of neutrons captured by the iron seed,the temperature dependence of the neutron exposure, neutron density,temperature, and electron density. The solar abundances of Kr and Xewere determined. From the Kr-85 branching the pulse width of a pulseds-process was estimated. The isotopic anomaly Xe-S, s-process Xe, wasinvestigated.