Double K-shell electron capture for ion-atom collisions at intermediate energies

Journal Article · Sun Apr 01 04:00:00 EST 1979 · Phys. Rev., A; (United States)

DOI:https://doi.org/10.1103/PhysRevA.19.1510· OSTI ID:6284243

Lin, C D

A three-state, two-center atomic expansion method is used to investigate double-electron capture from the K shell of multielectron atoms to the K shell of projectiles in the energy region where the projectile velocity is nearly equal to the orbital velocity of the target K-shell electron. By adopting an independent-electron approximation, the Coulomb interaction between the two electrons is replaced by monopole terms with a screening charge. The validity of this approximation is checked by comparing the cross sections for double capture in p-He and He/sup + +/-He collisions obtained from this method with other theoretical calculations and experiments. Double-electron-capture cross sections from the K shell of Ne atoms by F/sup 9 +/, O/sup 8 +/, and N/sup 7 +/ ions are then calculated; the results are shown to compare well with the neon Auger hypersatellite intensities measured by Woods et al.

• Research Organization: Department of Physics, Kansas State University, Manhattan, Kansas 66506
• OSTI ID: 6284243
• Journal Information: Phys. Rev., A; (United States), Journal Name: Phys. Rev., A; (United States) Vol. 19:4; ISSN PLRAA
• Country of Publication: United States
• Language: English

Related Subjects

640304* -- Atomic
Molecular & Chemical Physics-- Collision Phenomena
74 ATOMIC AND MOLECULAR PHYSICS
ATOM COLLISIONS
CAPTURE
CATIONS
CHARGED PARTICLES
COLLISIONS
CROSS SECTIONS
CRYOGENIC FLUIDS
ELECTRON CAPTURE
ELECTRONIC STRUCTURE
ELEMENTS
FLUIDS
FLUORINE IONS
HELIUM
HELIUM IONS
HYDROGEN IONS
HYDROGEN IONS 1 PLUS
ION COLLISIONS
ION-ATOM COLLISIONS
IONS
K SHELL
NITROGEN IONS
NONMETALS
OXYGEN IONS
RARE GASES