Unified theory of ion-impact and shake-off contributions to multiple vacancy production
Journal Article
·
· IEEE Trans. Nucl. Sci.; (United States)
In collisions of atoms with a photon, electron, or proton the projectile usually makes at most a single hole; additional vacancies may be weakly produced by ''shake-off'' resulting from a sudden change in the Hartree-Fock potential. With projectiles of nuclear charge greater than one the probability for impact ionization of both K shell electrons is increased. For K..cap alpha.. hypersatellites (K/sup 2/L /SUP v/) the change in the potential is much greater than for the satellites (KL /SUP v/), and L-shell shake-off may be expected to be appreciable in light atoms. The authors have extended our independent-Fermi-particle treatment of ion-impact multiple vacancy production to include shake-off. Calculations for He and C ions on neon exhibit large shake-off contributions for K/sup 2/L /SUP v/ and non-negligible ones for KL /SUP v/.
- Research Organization:
- Oak Ridge Natl. Lab., Oak Ridge, TN 37830
- OSTI ID:
- 5736986
- Journal Information:
- IEEE Trans. Nucl. Sci.; (United States), Journal Name: IEEE Trans. Nucl. Sci.; (United States) Vol. 30:2; ISSN IETNA
- 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
ATOM COLLISIONS
ATOMIC NUMBER
CARBON IONS
CHARGED PARTICLES
COLLISIONS
CRYSTAL DEFECTS
CRYSTAL STRUCTURE
ELECTRON COLLISIONS
ELECTRON-ATOM COLLISIONS
ELECTRONIC STRUCTURE
ELEMENTS
FLUIDS
GASES
HARTREE-FOCK METHOD
HELIUM IONS
ION COLLISIONS
ION-ATOM COLLISIONS
IONIZATION
IONIZATION POTENTIAL
IONS
K SHELL
L SHELL
NEON
NONMETALS
PHOTON COLLISIONS
PHOTON-ATOM COLLISIONS
POINT DEFECTS
RARE GASES
VACANCIES
Molecular & Chemical Physics-- Collision Phenomena
74 ATOMIC AND MOLECULAR PHYSICS
ATOM COLLISIONS
ATOMIC NUMBER
CARBON IONS
CHARGED PARTICLES
COLLISIONS
CRYSTAL DEFECTS
CRYSTAL STRUCTURE
ELECTRON COLLISIONS
ELECTRON-ATOM COLLISIONS
ELECTRONIC STRUCTURE
ELEMENTS
FLUIDS
GASES
HARTREE-FOCK METHOD
HELIUM IONS
ION COLLISIONS
ION-ATOM COLLISIONS
IONIZATION
IONIZATION POTENTIAL
IONS
K SHELL
L SHELL
NEON
NONMETALS
PHOTON COLLISIONS
PHOTON-ATOM COLLISIONS
POINT DEFECTS
RARE GASES
VACANCIES