Impact-parameter dependence of K-vacancy production in Cu-Ni collisions

Journal Article · Thu Mar 01 04:00:00 EST 1979 · Phys. Rev., A; (United States)

DOI:https://doi.org/10.1103/PhysRevA.19.1038· OSTI ID:6135587

Annett, C H; Curnutte, B; Cocke, C L

We have measured the impact-parameter (b) dependent probabilities (P) for the production of Ni (and Cu) K x rays in the bombardment of thin nickel foils by 50- and 65.5-MeV Cu beams. The shape of P (b) is found to be independent of nickel-foil thickness (t) and of the presence of a pre-exciting carbon layer, but the magnitude scale of both P (b) and of the total K-x-ray cross section is quite dependent upon t and on the presence of the carbon. The data suggest that 2psigma vacancies are being produced via 2p..pi.. - 2psigma rotational coupling preceded by preparation of the necessary projectile 2p vacancies in both single- and multiple-collision processes. The shape of P (b) is only qualitatively similar to that expected for the rotational-coupling process, however.

• Research Organization: Kansas State University, Manhattan, Kansas 66506
• OSTI ID: 6135587
• Journal Information: Phys. Rev., A; (United States), Journal Name: Phys. Rev., A; (United States) Vol. 19:3; ISSN PLRAA
• Country of Publication: United States
• Language: English

Related Subjects

640304* -- Atomic
Molecular & Chemical Physics-- Collision Phenomena
74 ATOMIC AND MOLECULAR PHYSICS
ATOMIC IONS
BEAMS
CHARGED PARTICLES
COLLISIONS
COPPER IONS
ELECTRONIC STRUCTURE
ELEMENTS
ENERGY RANGE
FOILS
IMPACT PARAMETER
ION BEAMS
ION COLLISIONS
IONIZATION
IONS
K SHELL
METALS
MEV RANGE
MEV RANGE 10-100
NICKEL
SPECTRA
TRANSITION ELEMENTS
X-RAY SPECTRA