Production and decay of sulfur excited species in an electron-cyclotron-resonance ion-source plasma

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The most important processes for the creation of S12+ to S14+ ions excited states from the ground configurations of S9+ to S14+ ions in an electron cyclotron resonance ion source, leading to the emission of K x-ray lines, are studied. Theoretical values for inner-shell excitation and ionization cross sections, including double-KL and triple-KLL ionizations, transition probabilities and energies for the de-excitation processes, are calculated in the framework of the multiconfiguration Dirac-Fock method. With reasonable assumptions about the electron energy distribution, a theoretical K alpha x-ray spectrum is obtained, which is compared to recent experimental data.
Original languageUnknown
Pages (from-to)032501
JournalPhysical Review A
Issue number3
Publication statusPublished - 1 Jan 2009

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