K-shell ionization cross section for Ti, Fe, Cu, Zr, and Ag
Absolute K-shell ionisation cross sections have been measured for thin targets of Ti, Fe, Cu, Zr and Ag for protons in the energy range 85-790 keV and for thin targets of Ti, Fe and Cu for He ions in the energy range 190-750 keV. In addition the relative variation of the cross sections with energy has been determined with high accuracy. The experimental values are compared to the perturbed stationary state approximation (CPSSR) and the semiclassical approximation (SCA). The CPSSR theory provides the best overall agreement with experimental cross sections. For higher scaled energies the CPSSR theory predicts the energy dependence of the cross sections very well but in the lower energy range it overpredicts the cross sections by as much as a factor of two and this overprediction seems to increase with Z/sub 2/ at a fixed scaled energy y. The SCA theory predicts slightly too large ionisation cross sections except for the lowest pounds values. The relative variation of the cross sections with energy is not well described in either energy range.
- Research Organization:
- Johannes-Kepler-Universitat Linz, A-4040 Linz/ Auhof
- OSTI ID:
- 5336506
- Report Number(s):
- CONF-801111-
- Journal Information:
- IEEE Trans. Nucl. Sci.; (United States), Vol. NS-28:2; Conference: 6. conference on application of accelerators in research and industry, Denton, TX, USA, 3 Nov 1980
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
COPPER
INNER-SHELL IONIZATION
ION-ATOM COLLISIONS
HELIUM IONS
HYDROGEN IONS 1 PLUS
CROSS SECTIONS
IRON
SILVER
TITANIUM
ZIRCONIUM
ACCURACY
BORN APPROXIMATION
COULOMB IONIZATION
KEV RANGE
ATOM COLLISIONS
CATIONS
CHARGED PARTICLES
COLLISIONS
ELEMENTS
ENERGY RANGE
HYDROGEN IONS
ION COLLISIONS
IONIZATION
IONS
METALS
TRANSITION ELEMENTS
640304* - Atomic
Molecular & Chemical Physics- Collision Phenomena