Ejected electron spectra from triplet states of doubly-excited O4+ and Ne6+

Kanai, Yasuyuki; Kambara, T.; Awaya, Y.; Ida, H; Matsui, Y; Takayanagi, Toshiyuki; Wakiya, K.; Nakamura, Nobuyuki; Koide, Michi; Kitazawa, Sin‐iti; Ohtani, Shunsuke

doi:10.1016/0168-583x(95)00076-3

Cited by 4 publications

(5 citation statements)

References 18 publications

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“…The data in column a are obtained by the perturbation theory method that allows the inclusion of the correlation effect directly as the second-order contribution. The contribution of correlation effects to the energies of the 1s 2 3lnl states has also been discussed in previous papers , Nakamura et al 1994, 1995, Kitazawa et al 1998.…”

Section: Theoretical Methodsmentioning

confidence: 71%

“…In the case of the He target, only the singlet states of doubly excited configurations can be produced unless the collision has changed an electron spin (Nakamura et al 1994, 1995, Kitazawa et al 1998. For the Ne target, the double-electron capture process can produce both singlet and triplet doubly excited states.…”

Section: Resultsmentioning

confidence: 99%

“…We have measured the energy distributions of the ejected electrons in the electron capture collisions of Ne 8+ projectile ions with He, Ne and Ar targets. These experiments were performed using the ECR ion source in RIKEN (Sakaue et al 1990, Kanai et al 1995. Ions were extracted from the ion sources and mass analysed by a 90 • magnet, transported through a bending magnet and focused by an einzel electrostatic lens system.…”

Section: Experimental Methodsmentioning

confidence: 99%

“…The target gas pressure in the gas cell was of the order of 10 −3 -10 −1 Pa, which was used as this made it possible to eliminate double collisions. The details of the experimental set-up were given in previous papers (Sakaue et al 1990, Kanai et al 1995, Kitazawa et al 1998.…”

Section: Experimental Methodsmentioning

confidence: 99%

“…Recently, experiments on highly charged ion collisions are being widely investigated using electron cyclotron resonance (ECR) ion sources. We have performed a series of studies on double-electron transfer processes by means of the ejected-electron spectroscopy in the collisions of highly charged low-energy He-like ions with rare gas atoms using ECR ion sources (Kanai et al 1995, Nakamura et al 1994, 1995, Kitazawa et al 1997, 1998. The energy and target dependences were investigated on the population distribution of the singlet and triplet states in O 6+ (Nakamura et al 1995) and N 5+ (Kitazawa et al 1998) projectiles.…”

Section: Introductionmentioning

confidence: 99%

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Electron spectra from singlet and triplet states of Ne^6+**produced by low energy Ne⁸⁺+ He, Ne and Ar collisions

Kitazawa

Ida

Matsui

et al. 2001

J. Phys. B: At. Mol. Opt. Phys.

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Ejected electron spectra from the singlet and triplet states of doubly excited Ne 6+ * * (1s 2 2pnl), Ne 6+ * * (1s 2 3l3l) and Ne 6+ * * (1s 2 3l4l) ions, produced by 80 keV Ne 8+ (1s 2) + He, Ne and Ar collisions, have been measured by means of a zero-degree electron spectroscopy. Only singlet states were observed when the target was He. In contrast, the contribution from the triplet states prevailed in the spectra for the Ne target. For the Ar target, practically no signals were observed in the energy region for the 1s 2 3lnl states. Two theoretical methods, the perturbation theory (MZ code) and the multi-configurational Hartree-Fock (Cowan code) were used for identification of ejected-electron spectra. Using the (j) string analysis in the extended classical over-barrier model, we discuss the possibility of the participation of inner electrons in the process of doubleelectron capture by highly charged ion multi-electron target atoms.

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Section: Theoretical Methodsmentioning

confidence: 71%

Section: Resultsmentioning

confidence: 99%

Section: Experimental Methodsmentioning

confidence: 99%

Section: Experimental Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Electron spectra from singlet and triplet states of Ne^6+**produced by low energy Ne⁸⁺+ He, Ne and Ar collisions

Kitazawa

Ida

Matsui

et al. 2001

J. Phys. B: At. Mol. Opt. Phys.

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Ejected electron spectra from highly excited states in high-energy collisions of O q+ with He

Kawatsura

Kondo

Imai

et al. 2003

Nuclear Instruments and Methods in Physics Research Section B:

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Studies of ejected-electron spectra arising from O⁶⁺-He, Ne, Ar and N⁵⁺-He, Ne, Ar collisions

et al. 1997

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Ejected electron spectra from triplet states of doubly-excited O4+ and Ne6+

Cited by 4 publications

References 18 publications

Electron spectra from singlet and triplet states of Ne^6+**produced by low energy Ne⁸⁺+ He, Ne and Ar collisions

Electron spectra from singlet and triplet states of Ne^6+**produced by low energy Ne⁸⁺+ He, Ne and Ar collisions

Ejected electron spectra from highly excited states in high-energy collisions of O q+ with He

Studies of ejected-electron spectra arising from O⁶⁺-He, Ne, Ar and N⁵⁺-He, Ne, Ar collisions

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Ejected electron spectra from triplet states of doubly-excited O4+ and Ne6+

Cited by 4 publications

References 18 publications

Electron spectra from singlet and triplet states of Ne6+**produced by low energy Ne8++ He, Ne and Ar collisions

Electron spectra from singlet and triplet states of Ne6+**produced by low energy Ne8++ He, Ne and Ar collisions

Ejected electron spectra from highly excited states in high-energy collisions of O q+ with He

Studies of ejected-electron spectra arising from O6+-He, Ne, Ar and N5+-He, Ne, Ar collisions

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Electron spectra from singlet and triplet states of Ne^6+**produced by low energy Ne⁸⁺+ He, Ne and Ar collisions

Electron spectra from singlet and triplet states of Ne^6+**produced by low energy Ne⁸⁺+ He, Ne and Ar collisions

Studies of ejected-electron spectra arising from O⁶⁺-He, Ne, Ar and N⁵⁺-He, Ne, Ar collisions