Published January 28, 1997 | Version v1
Journal article Metadata-only

Photon energy dependence of ionization-excitation in helium at medium energies

Creators

  • 1. Tennessee Univ., Knoxville, TN (United States). Dept. of Physics and Astronomy
  • 2. University of Nevada, Las Vegas (United States). Dept. of Chemistry
  • 3. Western Michigan Univ., Kalamazoo, MI (United States). Dept. of Physics
  • 4. Fritz-Haber-Institut der Max-Planck-Gesellschaft, Berlin (Germany)

Description

We have measured the photoionization-excitation-to-photoionization ratio for He+ nl (n = 2-6) at several photon energies from 90 to 900eV. By extrapolating these values we could determine the asymptotic high-energy ratios for He+nl (n=2-5) which agree with theoretical predictions. We show that the satellite-to-main-line ratios are consistent with experimental double-to-single photoionization ratios and agree well with recent measurements. (Author)

Additional details

Publishing Information

Journal Title
Journal of Physics. B, Atomic, Molecular and Optical Physics
Journal Volume
30
Journal Issue
2
Journal Page Range
p. L51-L58.
ISSN
0953-4075
CODEN
JPAPEH

INIS

Country of Publication
United Kingdom
Country of Input or Organization
United Kingdom
INIS RN
28039288
Subject category
S74: ATOMIC AND MOLECULAR PHYSICS;
Descriptors DEI
ENERGY DEPENDENCE; EV RANGE 100-1000; EXCITATION; HELIUM IONS; PHOTOIONIZATION; PHOTONS
Descriptors DEC
BOSONS; CHARGED PARTICLES; ELEMENTARY PARTICLES; ENERGY RANGE; ENERGY-LEVEL TRANSITIONS; EV RANGE; IONIZATION; IONS; MASSLESS PARTICLES