Electron-impact ionization of highly charged hydrogenic atomic ions

Dl, Moores; Ms, Pindzola

doi:10.1103/physreva.41.3603

Cited by 27 publications

(14 citation statements)

References 18 publications

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“…Results presented in Ref. [5] show only a 3% difference between the 1s ionization cross section for uranium calculated with the Mdller interaction and that cross section calculated without the Mdller interaction, at 198 keV. However, in that investigation, the Mdller interaction was included only in a noexchange scattering approximation.…”

Section: Pacs Number(s): 3480kwmentioning

confidence: 84%

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Effect of the Mo/ller interaction on electron-impact ionization of high-Zhydrogenlike ions

Moores

Reed

1995

Phys. Rev. A

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We have investigated the effects of the Mdller interaction in relativistic distorted-wave calculations of cross sections for electron-impact ionization of high-Z hydrogenlike ions. We found that the M611er interaction significantly increases the cross section for hydrogenlike uranium, and brings our calculated results into very good agreement with experimental results reported by Marrs, Elliott, and Knapp [Phys. Rev. Lett. 72, 4082 (1994)].We found similar increases in the cross sections for other hydrogenlike ions. Our results also show that these effects become important at much lower collision energy than previously reported [D. L. Moores and M. S. Pindzola, Phys. Rev. A 41, 3603 (1990)].With the Mtiller interaction included, our cross sections for these ions are in good agreement with preliminary results obtained in recent experiments on the electron-beam ion trap (EBIT).

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Section: Pacs Number(s): 3480kwmentioning

confidence: 84%

“…In a previous investigation of the effects of the Mbller interaction on 1s ionization cross sections, Moores and Pindzola concluded that the magnetic interactions and retar-dation effects become important only when the incidentelectron energy exceeds about 250 keV [5]. Results presented in Ref.…”

Section: Pacs Number(s): 3480kwmentioning

confidence: 91%

Effect of the Mo/ller interaction on electron-impact ionization of high-Zhydrogenlike ions

Moores

Reed

1995

Phys. Rev. A

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“…The MCDF method has also been applied to the calculation of electron-impact excitation (12)(13)(14)(15)(16)(17) and ionization (18) cross sections for atomic ions. The MCDF method has also been applied to the calculation of electron-impact excitation (12)(13)(14)(15)(16)(17) and ionization (18) cross sections for atomic ions.…”

Section: Introductionmentioning

confidence: 99%

Electron scattering theory for highly charged ions

Pindzola

Badnell

Moores

et al. 1991

Z Phys D - Atoms, Molecules and Clusters

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II. TheoryLowest-order QED theory using distorted wave states provides a convenient description for many electron scattering processes involving highly charged atomic ions.We apply QED theory to calculate ionization, excitation, and dielectronic recombination cross sections for electron scattering from highly charged uranium ions.For ionization and dielectronic recombination we compare theory with recent heavy ion accelerator measurements.We also apply lowest-order electroweak gauge theory using distorted wave states to examine the Zscaling of parity-violating neutral current contributions to the KLL Auger decay of atomic ions.

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“…This statement is verified by noting the excellent agreement tween our RDvV results and from refs. [84] Finally, the results of [83] from all of the others in two ways. these results were computed with the full lowest-order QED interaction for electrons scattering with a bound electron.…”

Section: The Non-factorized Approach To Computing Ionization Cross Sementioning

confidence: 99%

“…The entries from [84] were calculated with the RDW program was used to compute ionization contribution in [85], as opposed to the indirect excitation-autoionization contribution computed ref. [86].…”

Section: The Non-factorized Approach To Computing Ionization Cross Sementioning

confidence: 99%

A fully relativistic approach for calculating atomic data for highly charged ions

2009

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AbstractvVe present a review of our fully relativistic approach to calculating atomic data charged ions, highlighting a research effort that spans years. Dediscussions of both theoretical and numerical techniques are provided. Our basic approach is expected to provide accurate results for ions that range from approximately half ionized to fully stripped. Options for improving the accuracy and range of validity of this approach are also discussed. In developing numerical methods for calculating data within this framework, considerable emphasis is placed on techniques that are robust efficient. A of fundamental processes are considered including: photoexcitation, electron-impact excitation, electron-impact ionization, autoionization, electron capture, photoionization and photorecombina tion. Resonance contributions to a variety of these processes are also considered, including discussions of autoionization, electron capture and dielectronic recombi nation. Ample numerical examples are provided in order to illustrate the approach and to demonstrate its usefulness in providing data for large-scale plasma modeling.

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Electron-impact ionization of highly charged hydrogenic atomic ions

Cited by 27 publications

References 18 publications

Effect of the Mo/ller interaction on electron-impact ionization of high-Zhydrogenlike ions

Effect of the Mo/ller interaction on electron-impact ionization of high-Zhydrogenlike ions

Electron scattering theory for highly charged ions

A fully relativistic approach for calculating atomic data for highly charged ions

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