Vacancy-transfer cross sections and L vacancy lifetimes for low-energy collisions of Ar/sup + +/ with Mg, Al, and Si
Journal Article
·
· IEEE Trans. Nucl. Sci.; (United States)
Electron promotion via rotational coupling of the 2p..pi..-2psigma molecular orbitals in the quasimolecule formed during a near-symmetric collision between a heavy ion and a lighter target atom has successfully explained the K x-ray emission from the target atom. For atoms in a solid target, the target density fosters a doublecollision mechanism whereby a fraction of the ion beam brings an L-shell vacancy into a subsequent collision with a target atom so that K-electron transfer from the target to the projectile can occur. On this basis the authors have performed a thick-target K-shell ionization analysis on target x-ray yields for 160-380 keV Ar/sup + +/ impinging on Mg, Al, and Si. Measurements yield the equilibrium L-vacancy fraction and the L-vacancy lifetime for the Ar/sup + +/ beam moving through these targets.
- Research Organization:
- Physics Dept., Creighton Univ., Omaha, NB 68178
- OSTI ID:
- 6048370
- 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
Similar Records
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Journal Article
·
Tue Nov 30 23:00:00 EST 1976
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OSTI ID:7245198
Comparison of L x-ray spectra from multi-stripped ions in P/sup +/ + Ar and S/sup +/ + Ar gas collisions at 100 keV
Conference
·
Tue Mar 31 23:00:00 EST 1981
· IEEE Trans. Nucl. Sci.; (United States)
·
OSTI ID:5474061
K-shell ionization probability in energetic nearly symmetric heavy-ion collisions
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Thu Nov 30 23:00:00 EST 1978
· Phys. Rev., A; (United States)
·
OSTI ID:6587578
Related Subjects
640301* -- Atomic
Molecular & Chemical Physics-- Beams & their Reactions
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
ALKALINE EARTH METALS
ALUMINIUM
ARGON IONS
BEAMS
BETA DECAY
CHARGED PARTICLES
COLLISIONS
COUPLING
CROSS SECTIONS
CRYSTAL DEFECTS
CRYSTAL STRUCTURE
DECAY
ELECTROMAGNETIC RADIATION
ELECTRON CAPTURE DECAY
ELECTRON-PROMOTION MODEL
ELECTRONIC STRUCTURE
ELEMENTS
ENERGY LEVELS
ENERGY RANGE
EXCITED STATES
HEAVY IONS
ION BEAMS
ION COLLISIONS
IONIZATION
IONIZING RADIATIONS
IONS
K SHELL
KEV RANGE
KEV RANGE 100-1000
L CAPTURE
LIFETIME
MAGNESIUM
MATHEMATICAL MODELS
METALS
MOLECULAR ORBITAL METHOD
MULTICHARGED IONS
POINT DEFECTS
PROJECTILES
RADIATIONS
ROTATIONAL STATES
SEMIMETALS
SILICON
SYMMETRY
TARGETS
VACANCIES
X RADIATION
Molecular & Chemical Physics-- Beams & their Reactions
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
ALKALINE EARTH METALS
ALUMINIUM
ARGON IONS
BEAMS
BETA DECAY
CHARGED PARTICLES
COLLISIONS
COUPLING
CROSS SECTIONS
CRYSTAL DEFECTS
CRYSTAL STRUCTURE
DECAY
ELECTROMAGNETIC RADIATION
ELECTRON CAPTURE DECAY
ELECTRON-PROMOTION MODEL
ELECTRONIC STRUCTURE
ELEMENTS
ENERGY LEVELS
ENERGY RANGE
EXCITED STATES
HEAVY IONS
ION BEAMS
ION COLLISIONS
IONIZATION
IONIZING RADIATIONS
IONS
K SHELL
KEV RANGE
KEV RANGE 100-1000
L CAPTURE
LIFETIME
MAGNESIUM
MATHEMATICAL MODELS
METALS
MOLECULAR ORBITAL METHOD
MULTICHARGED IONS
POINT DEFECTS
PROJECTILES
RADIATIONS
ROTATIONAL STATES
SEMIMETALS
SILICON
SYMMETRY
TARGETS
VACANCIES
X RADIATION