Calculation of K -shell ionization cross sections by charged particles in the distortion approximation using pseudostates

Journal Article · Fri Dec 15 04:00:00 EST 1989 · Physical Review (Section) A: General Physics; (USA)

DOI:https://doi.org/10.1103/PhysRevA.40.6886· OSTI ID:7265855

Mukoyama, T ^[1]; Lin, C D ^[2]

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1. Institute for Chemical Research, Kyoto University, Uji, Kyoto, 611 Japan (JP)
2. Department of Physics, Kansas State University, Manhattan, Kansas 66506 (USA)

Cross sections for {ital K}-shell ionization by charged particles have been calculated within the framework of the impact-parameter formalism using the distortion approximation. The continuum wave functions are represented by pseudostates. It is confirmed that the pseudostate wave function can well reproduce the shape of the continuum wave function for low-energy electrons. The calculated total {ital K}-shell ionization cross sections for a number of ion-atom collision systems are shown to be in good agreement with the experimental results. For protons on copper, the ionization probabilities as a function of impact parameter are also found to agree with the measured values. The present results indicate that the distortion approximation using pseudostates is very useful in the study of {ital K}-shell ionization cross sections over a large range of ion-atom collision systems.

• OSTI ID: 7265855
• Journal Information: Physical Review (Section) A: General Physics; (USA), Journal Name: Physical Review (Section) A: General Physics; (USA) Vol. 40:12; ISSN PLRAA; ISSN 0556-2791
• Country of Publication: United States
• Language: English

Related Subjects

640304* -- Atomic
Molecular & Chemical Physics-- Collision Phenomena
74 ATOMIC AND MOLECULAR PHYSICS
ATOM COLLISIONS
CATIONS
CHARGED PARTICLES
COLLISIONS
COPPER
CROSS SECTIONS
DISTORTED WAVE THEORY
ELECTRONIC STRUCTURE
ELEMENTS
HYDROGEN IONS
HYDROGEN IONS 1 PLUS
IMPACT PARAMETER
INNER-SHELL IONIZATION
ION COLLISIONS
ION-ATOM COLLISIONS
IONIZATION
IONS
K SHELL
METALS
TRANSITION ELEMENTS