Multiple photoionization for the 2s subshell in the iron atom

Author:

Kučas Sigitas1,Kynienė Aušra1,Masys Šarūnas1,Jonauskas Valdas1

Affiliation:

1. Institute of Theoretical Physics and Astronomy, Vilnius University , Saulėtekio av. 3, LT-10257 Vilnius, Lithuania

Abstract

ABSTRACT Multiple photoionization is analysed as a result of radiative and Auger cascade following ionization by photon from the 2s subshell. The study includes 34 levels of the 3d64s2 configuration of the Fe atom. The multiple-photoionization cross-sections from the levels of the ground configuration to the generated ions and their configurations are analysed. This study demonstrates that the photoionization of the 2s subshell produces mainly states of the Fe5+ ion. The highest charge state produced by the photoionization equals Fe6+. The difference of the ion yields from the investigated levels of the iron atom reaches ∼ 4% for the Fe 5+ and Fe6+ ions. Main branches of the cascade decay are identified in the study. It is determined that the two strongest branches of the cascade lead to states of the Fe5+ ion.

Funder

Institute of Theoretical Physics and Astronomy

Publisher

Oxford University Press (OUP)

Subject

Space and Planetary Science,Astronomy and Astrophysics

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