Experimental cross sections for electron-impact ionization of chromium ions - Cr(6+), Cr(7+), Cr(8+), and Cr(10+)

Details Experimental cross sections for electron-impact ionization of chromium ions - Cr(6+), Cr(7+), Cr(8+), and Cr(10+) Experimental cross sections for electron-impact ionization of chromium ions - Cr(6+), Cr(7+), Cr(8+), and Cr(10+)

Mar 1989

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989phrva..39.2397s&link_type=abstract

Physical Review A - General Physics, 3rd Series (ISSN 0556-2791), vol. 39, March 1, 1989, p. 2397-2403.

Physics

General Physics

14

Chromium, Electron Impact, Ionization Cross Sections, Metal Ions, Autoionization, Electron Beams, Electron States, Ionization Potentials

Scientific paper

Absolute cross sections from below threshold to 1500 eV have been obtained for the electron-impact single ionization of the Cr(6+), Cr(7+), Cr(8+), and Cr(10+) ions. The ionization onsets of the lowest three charge states are found to be at lower energies than is expected for ground-state ions, suggesting the presence of ions in metastable configurations in the incident beams. Significant contributions to the total cross sections from excitation autoionization are noted for each ion.

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