Coulomb-deflection effect in inner-shell ionization by heavy charged particles

Journal Article · Sat Nov 01 04:00:00 EST 1980 · Phys. Rev., A; (United States)

DOI:https://doi.org/10.1103/PhysRevA.22.1889· OSTI ID:6847887

Lapicki, G; Laubert, R; Brandt, W

K-shell x-ray production cross sections were measured for /sub 28/Ni(K) in collision with /sup 1//sub 1/H ions of kinetic energies 55 to 300 keV, /sup 2//sub 1/H ions of 100 to 300 keV, and /sup 4//sub 2/He ions of 200 to 300 keV; for /sub 46/Pd(K) with /sup 1//sub 1/H ions of 215 to 300 keV, and for /sub 47/Ag(K) with /sup 1//sub 1/H ions of 200 to 300 keV. L-shell x-ray cross sections were measured for /sub 47/Ag(L) in collision with /sup 1//sub 1/H ions of kinetic energies 35 to 300 keV, with /sup 2//sub 1/H ions of 60 to 300 keV, with /sup 4//sub 2/He ions of 110 to 300 keV, and for /sub 79/Au(L) with /sup 1//sub 1/H ions of 140 to 300 keV. The collisions conditions were such that the effect of the projectile energy loss during the ionizing collision became significant for the K-shell ionizations, but remained unimportant for the L-shell ionizations. The measurements extend the experimental range of the Coulomb-deflection variable dq/sub 0S/ over previous measurements for the shells S=K by a factor of approx.1.2, and for S=L by a factor of approx.2. This permits a decisive test of current theories for the effect of the deflection of the projectile in the Coulomb field of the target nucleus on inner-shell ionization cross sections.

• Research Organization: Radiation and Solid State Laboratory, New York University, New York, New York 10003
• OSTI ID: 6847887
• Journal Information: Phys. Rev., A; (United States), Journal Name: Phys. Rev., A; (United States) Vol. 22:5; ISSN PLRAA
• Country of Publication: United States
• Language: English

Related Subjects

640304* -- Atomic
Molecular & Chemical Physics-- Collision Phenomena
74 ATOMIC AND MOLECULAR PHYSICS
ATOM COLLISIONS
BEAMS
CATIONS
CHARGED PARTICLES
COLLISIONS
CROSS SECTIONS
DEUTERIUM IONS
ELECTRONIC STRUCTURE
ELEMENTS
ENERGY RANGE
HELIUM 4 BEAMS
HELIUM IONS
HYDROGEN IONS
HYDROGEN IONS 1 PLUS
INNER-SHELL IONIZATION
ION BEAMS
ION COLLISIONS
ION-ATOM COLLISIONS
IONIZATION
IONS
K SHELL
KEV RANGE
KEV RANGE 10-100
KEV RANGE 100-1000
L SHELL
METALS
NICKEL
PALLADIUM
PLATINUM METALS
SILVER
SPECTRA
TRANSITION ELEMENTS
X-RAY SPECTRA