Interpretation of X-ray spectra emitted by Ar ions in an ECR ion source

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Abstract

We examine the most important processes leading to the creation of excited states from the ground configurations of Ar8+ to Ar16+ ions in an electron-cyclotron resonance ion source, which lead to the emission of K x-ray lines. Theoretical values for inner-shell excitation and ionization cross sections, including double KL ionization, transition probabilities and energies for the de-excitation processes, are calculated in the framework of the multi-configuration Dirac-Fock method. With reasonable assumptions about the electron energy distribution, a theoretical K x-ray spectrum is obtained, which reproduces very closely a recent experimental result.
Original languageEnglish
Pages (from-to)533-543
Number of pages11
JournalJournal of Physics B: Atomic and Molecular Physics
Volume34
Issue number4
DOIs
Publication statusPublished - 28 Feb 2001

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