Cross sections for K- and L-shell excitation in slow ion-atom collisions

Journal Article · Sun Nov 01 04:00:00 EST 1981 · Phys. Rev. A; (United States)

DOI:https://doi.org/10.1103/PhysRevA.24.2438· OSTI ID:6007102

Schneider, D; Stolterfoht, N

Absolute cross sections for Auger-electron production were measured for the target atom Ar bombarded by B/sup +/, C/sup +/, N/sup +/, O/sup +/, and Ne/sup +/ ions at energies from 50 to 600 keV. Cross sections for L-shell excitation of the target atom and the K-shell excitation of the projectiles were deduced. The sum of the L- and K-shell excitation cross sections are found to increase monotonically with decreasing nuclear charge of the projectiles. The data are interpreted in terms of adiabatic molecular orbital (MO) diagrams. Evidence is found for electron promotion via the 3dsigma MO being the dominant mechanism which is responsible for the inner-shell vacancy production.

• Research Organization: Hahn-Meitner-Institut fuer Kernforschung GmbH, Bereich Kern- und Strahlenphysik, Glienicker Strasse 100, 1000 Berlin 39, West Germany
• OSTI ID: 6007102
• Journal Information: Phys. Rev. A; (United States), Journal Name: Phys. Rev. A; (United States) Vol. 24:5; ISSN PLRAA
• Country of Publication: United States
• Language: English

Related Subjects

640304* -- Atomic
Molecular & Chemical Physics-- Collision Phenomena
74 ATOMIC AND MOLECULAR PHYSICS
ARGON
ATOM COLLISIONS
AUGER EFFECT
BORON IONS
CARBON IONS
CHARGED PARTICLES
COLLISIONS
CROSS SECTIONS
DATA
ELECTRONIC STRUCTURE
ELEMENTS
ENERGY RANGE
ENERGY-LEVEL TRANSITIONS
EXCITATION
EXPERIMENTAL DATA
FLUIDS
GASES
INFORMATION
ION COLLISIONS
ION-ATOM COLLISIONS
IONS
K SHELL
KEV RANGE
KEV RANGE 10-100
KEV RANGE 100-1000
L SHELL
NEON IONS
NITROGEN IONS
NONMETALS
NUMERICAL DATA
OXYGEN IONS
RARE GASES