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Observation of dielectronic satellites in the K-spectrum of argon ions in plasma produced by femtosecond laser pulses |
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| Authors: | A I Magunov A Ya Faenov I Yu Skobelev T A Pikuz E Biémont P Quinet F Blasco C Bonte F Dorchies T Caillaud F Salin C Stenz |
| Institution: | (1) General Physics Institute, Russian Academy of Sciences, ul. Vavilova 38, Moscow, 119991, Russia;(2) State Research Center VNIIFTRI, Mendeleevo, Moscow oblast, 141570, Russia;(3) IPNE (Bat. B15), Université de Liége, Sart Tilman, B-4000 Liége 1, Belgium;(4) Astrophysique et Spectroscopie, Université de Mons-Hainaut, Rue de la Halle, 15, B-7000 Mons, Belgium;(5) CELIA, Université de Bordeaux I, 33405 Talence, France |
| Abstract: | The satellite structure of 1s2p 1,3 P 1-1s 21 S 0 lines of the He-like argon ion in plasma produced by a 45-fs laser pulse in a gas-jet cluster target is measured with a high spectral resolution. Radiation transitions 2p → 1s from autoionizing states (AISs) are detected for ions ranging from Li-like to F-like. The spectrum observed is theoretically simulated with the use of the spectroscopic data for the AISs of multicharged ions obtained within the multiconfiguration relativistic Hartree-Fock method. Good agreement with experimental data is obtained when the main population channels of these states are taken into account for typical values of cluster-target plasma parameters. |
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