Contribution of autoionizing process into potassium atom ionization by electrons

Details Contribution of autoionizing process into potassium atom ionization by electrons Contribution of autoionizing process into potassium atom ionization by electrons

Jul 2008

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008pobeo..84...29c&link_type=abstract

Publications of the Astronomical Observatory of Belgrade, vol 84, pp. 29-33

Astronomy and Astrophysics

Astronomy

Scientific paper

Ionization cross-section of potassium atom by electrons is studied in the range from the ionization threshold to 26 eV. A resonance structure in the ionization cross-section is observed near 19 eV related to the contribution of autoionizing states. The energy position of the structure is shown to be in a good agreement with the one predicted theoretically (Roy and Rai 1973), though its absolute value is much smaller. Besides, the determined autoionizing contribution into the potassium atom ionization cross-section correlates well with the recently measured (Evrij et al. 2005) total autoionizing cross-section.

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