https://doi.org/10.1051/epjconf/20135914001
Theoretical interpretation for 2p − nd absorption spectra of iron, nickel, and copper in X-ray range measured at the LULI2000 facility
1 CEA, IRAMIS, Service “Photons, Atomes et Molécules”, Centre d'Études de Saclay, 91191 Gif-sur-Yvette, France
2 CEA, DAM, DIF, 91297 Arpajon, France
3 LULI, UMR 7605 CNRS - École Polytechnique, 91128 Palaiseau, France
4 Institute of Nuclear Fusion, Universidad Politécnica de Madrid, Spain
5 CEA, IRFU, Service d'Astrophysique, Centre d'Études de Saclay, 91191 Gif-sur-Yvettesss, France
a e-mail: michel.poirier@cea.fr
Published online: 15 November 2013
The 2p − nd absorption structures in medium Z elements present a valuable benchmark for atomic models since they exhibit a complex dependence on temperature and density. For these transitions lying in the X-ray range, one observes a competition between the spin-orbit splitting and the broadening associated to the excitation of complex structures. Detailed opacity codes based on the HULLAC or FAC suites agree with the statistical code SCO; but in iron computations predict higher peak absorption than measured. An addition procedure on opacities calculated with detailed codes is proposed and successfully tested.
© Owned by the authors, published by EDP Sciences, 2013
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 2.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
