Intershell correlations in photoionization of outer shells

We demonstrate that the cross sections for photoionization of the outer shells are noticeably modified at the photon energies close to the thresholds of ionization of the inner shells due to correlations with the latter. The correlations may lead to increase or to decrease of the cross sections just...

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Bibliographic Details
Published in:Nuclear instruments & methods in physics research. Section B, Beam interactions with materials and atoms Beam interactions with materials and atoms, 2016-02, Vol.369, p.21-23
Main Authors: Amusia, M.Ya, Chernysheva, L.V., Drukarev, E.G.
Format: Article
Language:English
Subjects:
Atoms
Beam interactions
Correlation
Correlations
Cross sections
Cross sections (physics)
Ionization
Photoionization
Photons
Random Phase Approximation with Exchange
Threshold
Thresholds
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Summary:We demonstrate that the cross sections for photoionization of the outer shells are noticeably modified at the photon energies close to the thresholds of ionization of the inner shells due to correlations with the latter. The correlations may lead to increase or to decrease of the cross sections just above the ionization thresholds.
ISSN:0168-583X
1872-9584
DOI:10.1016/j.nimb.2015.09.071