Systematics of single and double K-shell vacancy production in titanium bombarded by heavy ions

Thesis/Dissertation · Thu Jan 01 04:00:00 EST 1981

OSTI ID:6148800

Hall, J M

The systematics of single and double K-shell vacancy production in Titanium has been investigated in the limit of zero target thickness (approx. 1 ..mu..g/cm/sup 2/) for incident C, N, O, F, Mg, Al, Si, S, and Cl ions over a maximum energy range of 0.5 to 6.5 MeV/amu. This corresponds to collision systems with 0.24 less than or equal to v/sub 1//v/sub 2K/ less than or equal to 0.85 and 0.27 less than or equal to Z/sub 1//Z/sub 2/ less than or equal to 0.77. The project can be divided into four major measurements. (1) Single K-shell ionization has been investigated by measuring K and K satellite x-ray production cross sections for projectiles incident with no K-shell vacancies. For incident ions with Z/sub 1/ greater than or equal to 9, the contribution due to electron transfer processes from the target K-shell to outer shells of the projectile has also been studied. (2) Single K-shell to K-shell electron transfer cross sections have been obtained indirectly by measuring the enhancement in the Ti K x-ray production cross section for bare incident projectiles over ions incident with no initial K-shell vacancies. (3) Double K-shell ionization has been investigated by measuring the K..cap alpha.. hypersatellite intensity in ratio to the total K..cap alpha.. intensity. (4) Double K-shell to K-shell electron transfer cross sections have been obtained indirectly using a difference procedure similar to that used for single K to K transfer. The measured cross sections have been compared to current theoretical models for direct Coulomb ionization and inner-shell electron transfer and have been used to investigate the relative importance of these mechanisms for K-vacancy production in heavy ion-atom collisions.

• Research Organization: Kansas State Univ., Manhattan (USA)
• OSTI ID: 6148800
• Country of Publication: United States
• Language: English

Related Subjects

640301* -- Atomic
Molecular & Chemical Physics-- Beams & their Reactions
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
ATOM COLLISIONS
CHARGED PARTICLES
COLLISIONS
COULOMB IONIZATION
CROSS SECTIONS
DATA
ELECTRON TRANSFER
ELECTRONIC STRUCTURE
ELEMENTS
EXPERIMENTAL DATA
HEAVY IONS
INFORMATION
INNER-SHELL IONIZATION
ION COLLISIONS
ION-ATOM COLLISIONS
IONIZATION
IONS
K SHELL
METALS
NUMERICAL DATA
TITANIUM
TRANSITION ELEMENTS