Double ionization and excitation ionization in the Compton scattering of high-energy photons for metastable states of heliumlike ions |
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Authors: | A I Mikhailov I A Mikhailov |
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Institution: | (1) B. P. Konstantinov St. Petersburg Institute of Nuclear Physics, Russian Academy of Sciences, 188350 Gatchina, Leningrad Province, Russia |
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Abstract: | Double ionization and excitation ionization in Compton scattering for heliumlike ions in metastable states are investigated.
The electron energy distribution for double ionization and the total cross sections for both processes are calculated. The
calculations are carried out in the zeroth order of perturbation theory with respect to electron-electron interaction, using
Coulomb wave functions as the first approximation. The resulting equations are valid only in the high-energy nonrelativistic
range. It is assumed that Z≫1, but αZ≪1 (Z is the charge of the nucleus, and α is the fine-structure constant).
Zh. éksp. Teor. Fiz. 116, 1889–1902 (December 1999) |
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