Photon energy dependence of ionization-excitations in helium at medium energies
We have measured the photoionization-excitation-to-photoionization ratio for (n = 2 - 6) at several photon energies from 90 to 900 eV. By extrapolating these values we could determine the asymptotic high-energy ratios for (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.
Atomic, Molecular and Optical Physics | Physical Chemistry
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Sellin, I. A.,
Whitfield, S. B.,
Lindle, D. W.,
Photon energy dependence of ionization-excitations in helium at medium energies.
Journal of Physics B. Atomic, molecular and optical physics, 30(2),