Excitation and ionization cross sections for fast lithium atoms and ions colliding with atoms
Journal Article
·
· Phys. Rev. A; (United States)
The results of a comprehensive study of projectile excitation and ionization cross sections for fast lithium atoms and positive ions impacting on low-Z (< or =11) targets are presented. This theoretical study is based on an asymptotic (high-speed) form of the Born approximation and the emphasis is placed on establishing the principal collision processes for Li/sup 0/ at high energies, including inner-shell and valence-shell transitions to both discrete and continuum final states. An extensive comparison with experimental results for H/sub 2/, He, and N targets is included. Recent experimental data for the Li/sup 0/ 2P-2S emission cross sections for He targets in the 10--100-keV/amu energy regime are in good agreement with the theoretical results, although significant departures from the trend of those data are predicted for higher energies due to the onset of doubly inelastic processes. Some discrepancies with recently reported Li/sup 0/ electron-loss cross sections at (6/7) MeV/amu are noted for several targets.
- Research Organization:
- Physical Dynamics, Incorporated, P.O. Box 1883, La Jolla, California 92038
- OSTI ID:
- 6368998
- Journal Information:
- Phys. Rev. A; (United States), Journal Name: Phys. Rev. A; (United States) Vol. 26:5; ISSN PLRAA
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
640304* -- Atomic
Molecular & Chemical Physics-- Collision Phenomena
74 ATOMIC AND MOLECULAR PHYSICS
ALKALI METALS
ATOM COLLISIONS
ATOM-ATOM COLLISIONS
BEAM INJECTION HEATING
BORN APPROXIMATION
CHARGED PARTICLES
COLLISIONS
ELEMENTS
ENERGY-LEVEL TRANSITIONS
EXCITATION
FLUIDS
FUSION REACTIONS
GASES
HEATING
HELIUM
HYDROGEN
ION COLLISIONS
ION-ATOM COLLISIONS
IONIZATION
IONS
LITHIUM
LITHIUM IONS
METALS
NITROGEN
NONMETALS
NUCLEAR REACTIONS
PLASMA HEATING
RARE GASES
Molecular & Chemical Physics-- Collision Phenomena
74 ATOMIC AND MOLECULAR PHYSICS
ALKALI METALS
ATOM COLLISIONS
ATOM-ATOM COLLISIONS
BEAM INJECTION HEATING
BORN APPROXIMATION
CHARGED PARTICLES
COLLISIONS
ELEMENTS
ENERGY-LEVEL TRANSITIONS
EXCITATION
FLUIDS
FUSION REACTIONS
GASES
HEATING
HELIUM
HYDROGEN
ION COLLISIONS
ION-ATOM COLLISIONS
IONIZATION
IONS
LITHIUM
LITHIUM IONS
METALS
NITROGEN
NONMETALS
NUCLEAR REACTIONS
PLASMA HEATING
RARE GASES