Monopole Coulomb-deflection factor for heavy-particle inner-shell-ionization cross sections

Journal Article · Fri May 01 04:00:00 EDT 1981 · Phys. Rev., A; (United States)

DOI:https://doi.org/10.1103/PhysRevA.23.2727· OSTI ID:6439170

Lapicki, G; Goldstein, M; Brandt, W

The repulsion between positively charged projectiles and the nucleus of target atoms gives rise to a Coulomb-deflection factor that reduces the inner-shell-ionization cross sections calculated for straight-line particle trajectories. In the monopole approximation to the repulsion, this factor depends on the function G/sub 0/(x) = (x dK/sub i/x(y)/dyVertical Bar/sub y/ = x)/sup 2/, where K/sub i/x is the Bessel function of imaginary order. Through identities between Bessel functions of complex order and argument we have, in this addendum to an earlier paper (W. Brandt and G. Lapicki, Phys. Rev. A 20, 465 (1979)), reduced the evaluation of G/sub 0/(x) to computed functions. Values of G/sub 0/(x) and its integrals as they appear in the theory of K- and L-shell ionizations are tabulated. The monopole approximation is compared with results based on the standard approximation G(x) = 1 which describes the experimental data.

• Research Organization: New York University, New York, New York 10003
• OSTI ID: 6439170
• Journal Information: Phys. Rev., A; (United States), Journal Name: Phys. Rev., A; (United States) Vol. 23:5; 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
CATIONS
CHARGED PARTICLES
COLLISIONS
COULOMB FIELD
CROSS SECTIONS
ELECTRIC FIELDS
HEAVY IONS
INNER-SHELL IONIZATION
ION COLLISIONS
ION-ATOM COLLISIONS
IONIZATION
IONS