Low energy deuteron elastic scattering on light and medium nucleiM. Avrigeanu1, H. Leeb2, W. von Oertzen3, F.L. Roman1 and V. Avrigeanu1
1 EURATOM-MEdC Fusion Association, "Horia Hulubei'' National Institute for Physics and Nuclear Engineering, P.O. Box MG-6, 76900 Bucharest, Romania
2 Atominstitut der Osterreichischen Universitaeten, Technische Universitaet Wien, Wien, Austria
3 Freie Universität Berlin, Fachbereich Physik, 14195 Berlin, and Hahn-Meitner-Institut, 14109 Berlin, Germany
Published online: 21 May 2008
An analysis of the elastic scattering of deuterons on 6,7Li, 27Al, 54,56,58Fe, 63,65Cu, and 93Nb for energies from 3 to 60 MeV has been carried out using a semi-microscopic optical potential which consists of a Coulomb term, a real double-folding (DF) potential, a phenomenological imaginary potential and a spin-orbit component. No normalization constant was involved in this work for the DF real potential, in order to emphasize the effects of further corrections requested by a satisfactory description of the experimental data. Moreover, an empirical non-locality correction to the microscopic real potential has been added in the case of the d + 6Li scattering. By taking into account also the dispersion correction, a good agreement of the experimental and semi-microscopic elastic scattering angular distribution has been obtained. The imaginary and spin-orbit potential parameters obtained by the semi-microscopic data analysis have been kept fixed within a second step of the present analysis, in order to obtain a full phenomenological optical potential needed for applications. As a global result, one may note differences of about 10-15% between the deuteron reaction cross sections corresponding to the present improved optical potential and those obtained using the default input parameters within the TALYS code, while enlarged changes are shown by the calculated elastic-scattering angular distributions. The differences with respect to the evaluated total reaction cross sections of the ACSELAM library are about 25-30%.
© CEA 2008