Electron-electron interactions in K-shell excitation of F[sup 6+] ions in fast collisions with H[sub 2] targets

Conference · Sat Jun 05 04:00:00 EDT 1993 · AIP Conference Proceedings (American Institute of Physics); (United States)

OSTI ID:6274992

Lee, D H ^[1]; Zouros, T J.M. ^[2]; Sanders, J M; Richard, P ^[3]

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1. J. R. Macdonald Laboratory and Department of Physics, Kansas State University, Manhattan, Kansas 66506 (United States) Brookhaven National Laboratory, Upton, New York 11973 (United States)
2. J. R. Macdonald Laboratory and Department of Physics, Kansas State University, Manhattan, Kansas 66506 (United States) Physics Department, University of Crete, and Institute of Electronic Structure Laser, P.O. Box 1527 Heraklion 711 10, Crete (Greece)
3. J. R. Macdonald Laboratory and Department of Physics, Kansas State University, Manhatan, Kansas 66506 (United States)

[ital K]-shell excitation of F[sup 6+](1[ital s][sup 2]2[ital s]) projectile ions in collisions with H[sub 2] targets has been studied by measuring 0[degree] state-resolved Auger electron production cross sections in the projectile energy range of 0.25 to 2 MeV/u. Projectile 1[ital s][r arrow]2[ital p] excitation due to the interaction with a target electron'' (electron-electron Excitation[sup 1] [[ital ee]E]) has been observed in the production of the 1[ital s](2[ital s]2[ital p][sup 3][ital P])[sup 2][ital P][sub [minus]] and 1[ital s](2[ital s]2[ital p][sup 1][ital P])[sup 2][ital P][sub +] states as well as 1[ital s]2[ital s]2[ital p][sup 4][ital P] state above the electron impact threshold. Projectile excitation is also produced by the target nucleus (electron-nucleus Excitation [[ital en]E]) for the [sup 2][ital P][sub [plus minus]] states. The [ital ee]E and [ital en]E cross sections were evaluated by Impulse Approximation (IA) and PWBA, respectively. The total [ital KLL] Auger electron production cross sections were also determined and exhibited the overall electron-electron interaction effects of [ital ee]E and Resonant-Transfer Excitation (RTE) which, in particular, is the 1[ital s][r arrow]2[ital p] excitation with 2[ital p] capture to result in 1[ital s]2[ital s]2[ital p][sup 2] [sup 3,1][ital D] states.

• OSTI ID: 6274992
• Report Number(s): CONF-920948--
• Conference Information: Journal Name: AIP Conference Proceedings (American Institute of Physics); (United States) Journal Volume: 274:1
• Country of Publication: United States
• Language: English

Related Subjects

664300* -- Atomic & Molecular Physics-- Collision Phenomena-- (1992-)
74 ATOMIC AND MOLECULAR PHYSICS
AUGER EFFECT
CHARGED PARTICLES
COLLISIONS
CROSS SECTIONS
ELECTRON-ELECTRON INTERACTIONS
ELECTRONIC STRUCTURE
ELEMENTS
ENERGY RANGE
ENERGY-LEVEL TRANSITIONS
EXCITATION
FLUORINE IONS
HYDROGEN
INTERACTIONS
ION COLLISIONS
ION-MOLECULE COLLISIONS
IONS
K SHELL
LEPTON-LEPTON INTERACTIONS
MEV RANGE
MOLECULE COLLISIONS
MULTICHARGED IONS
NONMETALS
PARTICLE INTERACTIONS