K -shell x-ray production in sub 6 C, sub 8 O, sub 9 F, sub 11 Na, sub 12 Mg, and sub 13 Al by 0. 5--8. 0-MeV helium ions

Journal Article · Sun Dec 01 00:00:00 EST 1991 · Physical Review A. General Physics; (United States)

DOI:https://doi.org/10.1103/PhysRevA.44.7252· OSTI ID:5395058

Yu, Y C; McNeir, M R; Weathers, D L; Duggan, J L; McDaniel, F D; Marble, D K; Zhao, Z Y ^[1]; Lapicki, G ^[2]

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1. Department of Physics, University of North Texas, Denton, Texas 76203 (United States)
2. Department of Physics, East Carolina University, Greenville, North Carolina 27858 (United States)

{ital K}-shell x-ray production cross sections are reported for incident {sup 4}He ions for elements with {ital K}-shell binding energies between 277 eV (C) and 1487 eV (Al). The data are compared with the first-order Born approximation (plane-wave Born approximation for direct ionization and Oppenheimer-Brinkman-Kramer approximation for electron capture) and to the energy loss and Coulomb deflection effects, perturbed stationary-state approximation with relativistic correction (ECPSSR) theory. The energy of the helium ions ranged from 0.5 to 6.0 MeV for He{sup +} and 6.5 to 8.0 MeV for He{sup 2+}. The targets used in these measurements were {sub 6}C, {sub 8}O, {sub 9}F, {sub 11}Na, {sub 12}Mg, and {sub 13}Al. Except for a systematic overprediction of the data at the lower projectile velocities, the ECPSSR theory is found to fit the data. The first-order Born theory is found to fit the data at higher energy, but greatly overpredicts the data at low energy.

• OSTI ID: 5395058
• Journal Information: Physical Review A. General Physics; (United States), Vol. 44:11; ISSN 1050-2947
• Country of Publication: United States
• Language: English

Related Subjects

74 ATOMIC AND MOLECULAR PHYSICS
ALUMINIUM
ION-ATOM COLLISIONS
CARBON
FLUORINE
HELIUM IONS
MAGNESIUM
OXYGEN
SODIUM
CROSS SECTIONS
INNER-SHELL IONIZATION
ION BEAMS
K SHELL
MEV RANGE 01-10
X-RAY EMISSION ANALYSIS
ALKALI METALS
ALKALINE EARTH METALS
ATOM COLLISIONS
BEAMS
CHARGED PARTICLES
CHEMICAL ANALYSIS
COLLISIONS
ELECTRONIC STRUCTURE
ELEMENTS
ENERGY RANGE
HALOGENS
ION COLLISIONS
IONIZATION
IONS
METALS
MEV RANGE
NONDESTRUCTIVE ANALYSIS
NONMETALS
664300* - Atomic & Molecular Physics- Collision Phenomena- (1992-)