skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Inner-shell capture and ionization in collisions of H/sup +/, He/sup 2 +/, and Li/sup 3 +/ projectiles with neon and carbon

Abstract

Theoretical methods used previously for H/sup +/, He/sup 2 +/, and C/sup 6 +/ collisions with neutral argon atoms have been applied to collisions of H/sup +/, He/sup 2 +/, and Li/sup 3 +/ projectiles with neon, and to collisions of H/sup +/ with carbon targets. The energy range covered by the calculations is 0.4 to 4.0 MeV/amu for the neon target, and 0.2 to 2.0 MeV/amu for carbon. We calculate single-electron amplitudes for target K-shell ionization and target K- and L-shell, to projectile K-shell, charge transfer. These single-electron amplitudes are used, in an independent-particle model that allows for multielectron processes, to compute K-shell vacancy production cross sections sigma/sup IPM//sub V/K, and cross sections sigma/sup IPM//sub C/,VK for producing a charge-transfer state of the projectile in the coincidence with a K-shell vacancy in the target. These cross sections are in reasonable agreement with the recent experiments of Rodbro et al. at Aarhus. In particular, the calculated, as well as the experimental, sigma/sub C/,VK scale with projectile nuclear charge Z/sub p/ less strongly than the Z/sup 5//sub p/ of the Oppenheimer-Brinkman-Kramers (OBK) approximation. For He/sup 2 +/ and Li/sup 3 +/ projectiles at collision energies below where experimental data are available,more » our calculated multielectron corrections to the single-electron approximation for sigma/sub C/,VK are large.« less

Authors:
; ;
Publication Date:
Research Org.:
Physics Department, Texas AandM University, College Station, Texas 77843
OSTI Identifier:
6639928
Resource Type:
Journal Article
Journal Name:
Phys. Rev., A; (United States)
Additional Journal Information:
Journal Volume: 23:2
Country of Publication:
United States
Language:
English
Subject:
74 ATOMIC AND MOLECULAR PHYSICS; CARBON; ION-ATOM COLLISIONS; HELIUM IONS; HYDROGEN IONS 1 PLUS; LITHIUM IONS; NEON; ELECTRON CAPTURE; IONIZATION; K SHELL; KEV RANGE 100-1000; L SHELL; MEV RANGE 01-10; MULTICHARGED IONS; ATOM COLLISIONS; CAPTURE; CATIONS; CHARGED PARTICLES; COLLISIONS; ELECTRONIC STRUCTURE; ELEMENTS; ENERGY RANGE; FLUIDS; GASES; HYDROGEN IONS; ION COLLISIONS; IONS; KEV RANGE; MEV RANGE; NONMETALS; RARE GASES; 640304* - Atomic, Molecular & Chemical Physics- Collision Phenomena

Citation Formats

Ford, A L, Reading, J F, and Becker, R L. Inner-shell capture and ionization in collisions of H/sup +/, He/sup 2 +/, and Li/sup 3 +/ projectiles with neon and carbon. United States: N. p., 1981. Web. doi:10.1103/PhysRevA.23.510.
Ford, A L, Reading, J F, & Becker, R L. Inner-shell capture and ionization in collisions of H/sup +/, He/sup 2 +/, and Li/sup 3 +/ projectiles with neon and carbon. United States. https://doi.org/10.1103/PhysRevA.23.510
Ford, A L, Reading, J F, and Becker, R L. Sun . "Inner-shell capture and ionization in collisions of H/sup +/, He/sup 2 +/, and Li/sup 3 +/ projectiles with neon and carbon". United States. https://doi.org/10.1103/PhysRevA.23.510.
@article{osti_6639928,
title = {Inner-shell capture and ionization in collisions of H/sup +/, He/sup 2 +/, and Li/sup 3 +/ projectiles with neon and carbon},
author = {Ford, A L and Reading, J F and Becker, R L},
abstractNote = {Theoretical methods used previously for H/sup +/, He/sup 2 +/, and C/sup 6 +/ collisions with neutral argon atoms have been applied to collisions of H/sup +/, He/sup 2 +/, and Li/sup 3 +/ projectiles with neon, and to collisions of H/sup +/ with carbon targets. The energy range covered by the calculations is 0.4 to 4.0 MeV/amu for the neon target, and 0.2 to 2.0 MeV/amu for carbon. We calculate single-electron amplitudes for target K-shell ionization and target K- and L-shell, to projectile K-shell, charge transfer. These single-electron amplitudes are used, in an independent-particle model that allows for multielectron processes, to compute K-shell vacancy production cross sections sigma/sup IPM//sub V/K, and cross sections sigma/sup IPM//sub C/,VK for producing a charge-transfer state of the projectile in the coincidence with a K-shell vacancy in the target. These cross sections are in reasonable agreement with the recent experiments of Rodbro et al. at Aarhus. In particular, the calculated, as well as the experimental, sigma/sub C/,VK scale with projectile nuclear charge Z/sub p/ less strongly than the Z/sup 5//sub p/ of the Oppenheimer-Brinkman-Kramers (OBK) approximation. For He/sup 2 +/ and Li/sup 3 +/ projectiles at collision energies below where experimental data are available, our calculated multielectron corrections to the single-electron approximation for sigma/sub C/,VK are large.},
doi = {10.1103/PhysRevA.23.510},
url = {https://www.osti.gov/biblio/6639928}, journal = {Phys. Rev., A; (United States)},
number = ,
volume = 23:2,
place = {United States},
year = {1981},
month = {2}
}