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Predicted cross-sections for photon-induced particle emission
(2004-09)
Cross-sections for the photon-induced particle-emission reactions (gamma,n), (gamma,p), and (gamma,alpha) are given for all natural isotopes from Ti to Bi. The target nuclei are assumed to be in their ground states, except ...
Evolution and nucleosynthesis of massive stars and related nuclear uncertainties
(2003-05-19)
Properties of atomic nuclei important for the prediction of astrophysical reaction rates are reviewed. In the first part, a recent simulation of evolution and nucleosynthesis of stars between 15 and 25 M-circle dot is ...
Nuclear data needs for the study of nucleosynthesis in massive stars
(2003-05-05)
The critical nuclear physics needed to calculate the evolution of and nucleosynthesis in massive stars is reviewed with emphasis on the uncertainties. Some reaction rates - the most important and uncertain still being C-12 ...
Prediction of astrophysical reaction rates as a challenge to nuclear physics
(2003-05-05)
Explosive nuclear burning in astrophysical environments produces unstable nuclei which again can be targets for subsequent reactions. In addition, it involves a large number of stable nuclides which are not fully explored ...
The Pb-208(n, gamma) cross section
(2003-05-05)
The Maxwellian average neutron capture (MAC) cross section of Pb-208 has been reinvestigated. With the activation technique cross section measurements were performed at 25, 30, 52, 104, 149, and 215keV. At 30keV we succceeded ...
Neutron capture of Si-30
(2002-10-21)
At the Karlsruhe and Tubingen 3.75 MV Van de Graaff accelerators the cross section of the reaction Si-30(n,gamma)Si-31(2.62h) was measured by the activation technique via the beta spectrum of the Si-31-decay. Natural silicon ...
The 1999 update of stellar neutron capture rates
(American Institute of Physics (AIP), 2000)
The reaction rate sensitivity of nucleosynthesis in type II supernovae
(1999-08-20)
We explore the sensitivity of the nucleosynthesis of intermediate-mass elements (28 less than or equal to A less than or similar to 80) in supernovae derived from massive stars to the nuclear reaction rates employed in the ...
Stellar neutron capture cross sections of Pr and Dy isotopes
(1999-02)
The neutron capture cross sections of Pr-141, Dy-160, Dy-161, Dy-161, Dy-163 and Dy-164 have been measured in Be energy range from 3 to 225 keV at the Karlsruhe 3.75 MV Van de Graaff accelerator. Neutrons were produced via ...