K -shell x-ray production cross sections for low- Z elements (11 le Z le 22) by 1--2. 5-MeV sup 4 He ions

Journal Article · Thu Oct 01 04:00:00 EDT 1992 · Physical Review A. General Physics; (United States)

DOI:https://doi.org/10.1103/PhysRevA.46.4425· OSTI ID:7198477

Tribedi, L C; Tandon, P N ^[1]

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1. Tata Institute of Fundamental Research, Homi Bhabha Road, Bombay 400005 (India)

{ital K}-shell x-ray production cross sections for Na, Mg, Al, Si, Cl, K, Ca, and Ti bombarded by {sup 4}He{sup +} ions in the energy range 1.0--2.5 MeV have been measured using thin targets. The ionization cross sections deduced are compared with various Coulomb-ionization theories based on the plane-wave Born approximation, the binary-encounter approximation, and the simplified semiclassical approximation according to the Andersen, Lgsgaard, and Lund (Nucl. Instrum. Methods 192, 79 (1982)) and 1{ital s}{sigma} molecular-orbital ionization theory. The calculations based on a perturbed-stationary-state approach including all the corrections such as the Coulomb deflection, the increased binding energy, and the relativistic effects, describe the data best although there are deviations in the case of Na at lower energies.

• OSTI ID: 7198477
• Journal Information: Physical Review A. General Physics; (United States), Journal Name: Physical Review A. General Physics; (United States) Vol. 46:7; ISSN 1050-2947; ISSN PLRAA
• Country of Publication: United States
• Language: English

Related Subjects

664300* -- Atomic & Molecular Physics-- Collision Phenomena-- (1992-)
74 ATOMIC AND MOLECULAR PHYSICS
ALKALI METALS
ALKALINE EARTH METALS
ALPHA PARTICLES
ALUMINIUM
ARGON
ATOM COLLISIONS
ATOMIC NUMBER
CALCIUM
CHARGED PARTICLES
CHEMICAL ANALYSIS
CHLORINE
COLLISIONS
CROSS SECTIONS
DIMENSIONS
ELECTROMAGNETIC RADIATION
ELECTRONIC STRUCTURE
ELEMENTS
ENERGY RANGE
EVEN-EVEN NUCLEI
FLUIDS
GASES
HALOGENS
HELIUM 4
HELIUM ISOTOPES
ION COLLISIONS
ION-ATOM COLLISIONS
IONIZATION
IONIZING RADIATIONS
ISOTOPES
K SHELL
LIGHT NUCLEI
MAGNESIUM
METALS
MEV RANGE
MEV RANGE 01-10
NONDESTRUCTIVE ANALYSIS
NONMETALS
NUCLEI
PHOSPHORUS
POTASSIUM
PRODUCTION
RADIATIONS
RARE GASES
SCANDIUM
SEMIMETALS
SILICON
SODIUM
STABLE ISOTOPES
SULFUR
TARGETS
THICKNESS
TITANIUM
TRANSITION ELEMENTS
X RADIATION
X-RAY EMISSION ANALYSIS