Excitation-ionization and double ionization of helium by Compton scattering

Journal Article · Sat Oct 01 04:00:00 EDT 1994 · Physical Review A; (United States)

DOI:https://doi.org/10.1103/PhysRevA.50.R2810· OSTI ID:7005649

Andersson, L; Burgdoerfer, J ^[1]

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1. Physics Department, University of Tennessee, Knoxville, Tennessee 37996-1200 (United States) Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831-6377 (United States)

We investigate the behavior of the cross section for inelastic photon scattering in the limit of high but nonrelativistic photon energies [omega][r arrow][infinity] at helium leading to two-electron transitions. Our calculation employs fully correlated wave functions for the helium ground state and different forms for approximate two-electron final states. We determine the [omega][r arrow][infinity] limit for the ratio of double to single ionization. We find the high-energy behavior to differ significantly from the one for photoabsorption. Our results confirm our previous estimate [Andersson and Burgdoerfer, Phys. Rev. Lett. [bold 71], 50 (1993)] but disagree with recent predictions by Hino [ital et] [ital al]. [Phys. Rev. Lett. [bold 72], 1620 (1994)].

• DOE Contract Number: AC05-84OR21400
• OSTI ID: 7005649
• Journal Information: Physical Review A; (United States), Journal Name: Physical Review A; (United States) Vol. 50:4; ISSN 1050-2947; ISSN PLRAAN
• Country of Publication: United States
• Language: English

Related Subjects

664200* -- Spectra of Atoms & Molecules & their Interactions with Photons-- (1992-)
74 ATOMIC AND MOLECULAR PHYSICS
BASIC INTERACTIONS
COMPTON EFFECT
ELASTIC SCATTERING
ELECTROMAGNETIC INTERACTIONS
ELEMENTS
FLUIDS
FUNCTIONS
GASES
HELIUM
INELASTIC SCATTERING
INTERACTIONS
IONIZATION
NONMETALS
RARE GASES
SCATTERING
WAVE FUNCTIONS