title: K(h)α1,2 x-ray hypersatellite line broadening as a signature of K-shell double photoionization followed by outer-shell ionization and excitation.
abstract: We propose a novel approach for the theoretical analysis of the photoinduced high-resolution K(h)α(1,2) x-ray hypersatellite spectra, which allows us to obtain reliable values of lifetimes of the doubly K-shell ionized states and fundamental information about the relative role of K-shell double photoionization (DPI) mechanisms. It is demonstrated for the first time that the K(h)α(1,2) hypersatellite natural line broadening observed for selected metal atoms with 20 ≤ Z ≤ 30 can be well reproduced quantitatively by taking into account the influences of the open-shell valence configuration (adopted from predictions of the band-structure method) and the outer-shell ionization and excitation following the DPI process.
authors: Faculty of Chemistry, Nicholas Copernicus University, Toruń, Poland. mpolasik@uni.torun.pl
authors: M
authors: M
authors: Polasik
authors: K
authors: K
authors: Słabkowska
authors: J
authors: J
authors: Rzadkiewicz
authors: K
authors: K
authors: Kozioł
authors: J
authors: J
authors: Starosta
authors: E
authors: E
authors: Wiatrowska-Kozioł
authors: J-Cl
authors: JC
authors: Dousse
authors: J
authors: J
authors: Hoszowska