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CRDF Project

CRDF Project: Research Cooperation Program

In March 2005 the CRDF project “Compilation and evaluation of alpha induced nuclear reaction cross sections for astrophysics” was successfully completed.

For the 24Mg+a, 28Si+a, 32S+a, 36Ar+a and 40Ca+a systems the parameters of optical potential, used to calculate cross-sections of nuclear reactions using Hauser-Feshbach statistical model, were obtained. To determine the Woods – Saxon potential with surface absorption a system approach, whose basic principles are described in a technical report, were used. The SCAT2 program was used in this work to describe the differential cross-sections of elastic scattering in order to find parameters of the optical potential. The NON-SMOKER program code was applied to calculate radiative capture cross-sections.
As a first step, a search was done for all available experimental data for the alpha-induced reactions on the above-specified nuclei within the energy range from 0 to 20 MeV. All of the selected experimental data were compiled and are now widely accessible through the International Library EXFOR.
Some of the results of this project were presented at the conference “Nuclear Data for Science and Technology” (Proceedings of the International Conference on Nuclear Data for Science and Technology, Santa Fe, New Mexico, September 26 - October 1, 2004).
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