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- W1990243308 abstract "Electron-impact ionization cross sections have been calculated for ${mathrm{Kr}}^{24+}$ and ${mathrm{Kr}}^{25+}$. The contributions of excitation-autoionization and resonant excitation double autoionization (REDA) were included in addition to the cross sections for direct ionization of a 3s electron. For ${mathrm{Xe}}^{43+}$ the REDA contributions were extended to two times the ionization threshold. The calculations were performed using the relativistic distorted-wave and the multiconfiguration Dirac-Fock methods. For ${mathrm{Kr}}^{25+}$ the indirect processes enhance the ionization cross section by a factor of 4. For ${mathrm{Kr}}^{24+}$ the total cross section is about 3.5 times the direct-ionization cross section. The REDA process produces numerous strong resonances and contributes about 20% to the average ionization cross section for ${mathrm{Kr}}^{24+}$ and ${mathrm{Kr}}^{25+}$ and 15% to the average ionization cross section for ${mathrm{Xe}}^{43+}$." @default.
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- W1990243308 date "1993-03-01" @default.
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- W1990243308 title "Indirect contributions to electron-impact ionization of<mml:math xmlns:mml=http://www.w3.org/1998/Math/MathML display=inline><mml:mrow><mml:msup><mml:mrow><mml:mi mathvariant=normal>Kr</mml:mi></mml:mrow><mml:mrow><mml:mn>2</mml:mn><mml:mn>4</mml:mn><mml:mo>+</mml:mo></mml:mrow></mml:msup></mml:mrow></mml:math>,<mml:math xmlns:mml=http://www.w3.org/1998/Math/MathML display=inline><mml:mrow><mml:msup><mml:mrow><mml:mi mathvariant=normal>Kr</mml:mi></mml:mrow><mml:mrow><mml:mn>2</mml:…" @default.
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- W1990243308 doi "https://doi.org/10.1103/physreva.47.1874" @default.
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