Formation and Decay of Autoionization States as the Main Inelastic Energy Loss Mechanism in keV Atomic Collisions

It has been shown that the formation of autoionization states makes the dominant contribution to inelastic energy loss and to ionization in keV atomic collisions, i.e., at velocities lower than the velocities of atomic electrons. Scaling laws have been proposed to calculate the cross sections for th...

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Bibliographic Details
Published in:Journal of experimental and theoretical physics 2023-05, Vol.136 (5), p.662-681
Main Authors: Zinoviev, A. N., Babenko, P. Yu, Shergin, A. P.
Format: Article
Language:English
Subjects:
Analysis
Atomic collisions
Augers
Autoionization
Classical and Quantum Gravitation
Collisions (Nuclear physics)
Cross-sections
Electrons
Elementary Particles
Ionization
Particle and Nuclear Physics
Physics
Physics and Astronomy
Quantum Field Theory
Relativity Theory
Review
Scaling laws
Solid State Physics
Spectral emittance
Tokamaks
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Summary:It has been shown that the formation of autoionization states makes the dominant contribution to inelastic energy loss and to ionization in keV atomic collisions, i.e., at velocities lower than the velocities of atomic electrons. Scaling laws have been proposed to calculate the cross sections for the formation of vacancies in inner K and L electron shells of colliding atoms. A model has been proposed to relate ionization processes and the observed inelastic energy losses. Auger transitions in a short-lived quasimolecule formed by two atoms approaching each other have been studied. The nature of the continuous component in electron spectra emitted in collisions has been determined. It has been shown that the excitation of autoionization states determines the stopping cross sections for keV atoms in matter.
ISSN:1063-7761
1090-6509
DOI:10.1134/S1063776123050138