Open AccessMultiple ionization upon K ‐shell photoabsorption of the CO and N 2 molecules
Author(s) -
Yavna Victor,
Nadolinsky Alexey,
Hopersky Alexey,
Yavna Svetlana
Publication year - 2001
Publication title -
journal of synchrotron radiation
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.172
H-Index - 99
ISSN - 1600-5775
DOI - 10.1107/s0909049500016514
Subject(s) - ionization , atomic physics , electron ionization , molar ionization energies of the elements , spectral line , excitation , multiplet , electron shell , chemistry , molecule , ion , electron , shell (structure) , physics , materials science , nuclear physics , composite material , organic chemistry , quantum mechanics , astronomy
The spectra of multiple ionization of CO and N2 in the gas phase in the region of the K‐shell ionization thresholds of C and N are studied theoretically. The processes of additional excitation/ionization from 1π and 5σ‐shells are included. The effects of many‐electron correlations on the extention of multiplet structure for some configurations of multiple excitations is studied. Absolute values of photoabsorption cross sections are calculated in some of the channels of multiple ionization.