Photoionization of the Ne-like Si4+ ion in ground and metastable states in the 110–184-eV photon energy range
Bizau, J.-M. and Mosnier, Jean-Paul and Kennedy, Eugene T. and Cubaynes, D. and Wuilleumier, F. and Blancard, C. and Champeaux, J.-P. and Folkmann, F. (2009) Photoionization of the Ne-like Si4+ ion in ground and metastable states in the 110–184-eV photon energy range. Physical Review A, 79 (3). 033407-1-033407-6. ISSN 1050-2947
Full text available as:
We present measurements of the absolute photoionization cross section of the neonlike Si4+ ion over the 110–184 eV photon energy range. The measurements were performed using two independent merged-beam setups at the super-ACO and ASTRID synchrotron-radiation facilities, respectively. Signals produced in the photoionization of the 2p subshell of the Si4+ ion both from the 2p6 1S0 ground state and the 2p53s 3P0,2 metastable levels were observed. Calculations of the 2p photoionization cross sections were carried out using a multi-configuration Dirac-Fock code. They give results in good agreement with the measured spectra. Comparison with other available theoretical results is also presented.
Archive Staff Only: edit this record