Theory of alignment of atoms following ion-atom collisions

Trautmann, D.; Baur, G.

doi:10.1016/0168-583x(89)90994-4

Cited by 20 publications

(5 citation statements)

References 4 publications

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“…These refined quantum mechanical calculations could reproduce the main tendencies of the L-subshell cross section data (including L 3 -subshell alignment parameters) in a broad range of the collision energy and target and projectile atomic number. Theoretical investigations by other authors (Finck et al 1983, Jitschin et al 1983b, Kocbach 1984, Spies et al 1984, Becker 1985, Berinde et al 1985, Amundsen and Jakubassa-Amundsen 1988, Legrand et al 1989,1991, Trautmann and Baur 1989) also supported the picture of the vacancy sharing process in the heavy-ion induced L-shell ionization.…”

Section: Introductionmentioning

confidence: 63%

Investigation of the vacancy sharing process in L-shell ionization of gold and bismuth by boron ions

Sarkadi

Mukoyama

Šmit

1996

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

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Coupled-states calculations have been made to interpret the L-subshell ionization cross section data measured by Padhi et al for collisions of B ions with Au and Bi in the energy range 0.48-0.88 MeV amu −1 . The calculated cross sections are in a reasonable agreement with the measured values. It has been shown that simple static Stark mixing of the target 2s and 2p atomic wavefunctions is inadequate for the description of the ionization process, and the dynamical treatment of the subshell couplings based on the solution of the coupled equations of the problem is necessary for the satisfactory description of the process.

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Section: Introductionmentioning

confidence: 63%

Investigation of the vacancy sharing process in L-shell ionization of gold and bismuth by boron ions

Sarkadi

Mukoyama

Šmit

1996

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

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“…Specifically, the authors optimized the measurements to reveal the properties of the vacancy sharing process between the L subshells (Sarkadi and Mukoyama 1981). The complete process of the direct Coulomb ionization and the subsequent vacancy sharing cannot be described by first-order perturbation approaches, and it still represents a challenge for the theory in spite of the encouraging results achieved in numerous theoretical investigations (Sarkadi and Mukoyama 1981,1984,1990, Finck et a1 1983, Kocbach 1984, Spies et al 1984, Becker 1985, Berinde et a1 1985b, Sarkadi and Papp 1985, Sarkadi 1986a, b, 1989, Amundsen and Jakubassa-Amundsen 1988, Legrand et a1 1989, Trautmann and Baur 1989.…”

Section: Introductionmentioning

confidence: 99%

Dynamical subshell coupling effects in L-shell ionization of thorium by heavy ions

Sarkadi¹,

Mukoyama²

1990

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

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Calculations have been made to interpret the L-shell ionization data measured by Berinde et al for collisions of Be, C, F, Mg, Si and S ions with Th in the energy range 0.5-2.5 MeV amu-'. The calculations are based on the cross section values obtained by Chen and Crasemann in the plane-wave Born approximation with the use of Dirac-Hartree-Slater wavefunctions. The cross sections of the first-order theory have been corrected to include higher-order effects due to the dynamical couplings between the L subshells. The coupling effects have been determined by solving a set of coupled equations which govern the time evolution of the L substate amplitudes. A reasonable agreement has been found between the experiment and theory. ui = C ~C T ~' ) ( R P W B A -D H S ) .

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“…In the SCA approach the ionization probability given by Eq. (4) can be calculated [38,39] using hyperbolic projectile trajectories and electron hydrogenic relativistic wave functions (HYD) [43,44] or self-consistent Dirac-Hartree-Fock wave functions (DHF) [45,46]. Both HYD and DHF wave functions were used to interpret the x-ray satellite and hypersatellite spectra discussed in the present paper.…”

Section: Semiclassical Approximationmentioning

confidence: 99%

Satellite and hypersatellite structures ofLα1,2andLβ1x-ray transitions in mid-
Czarnota
¹
,
Banaś
²
,
Berset
³

et al. 2013
Phys. Rev. A

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A detailed investigation of the Lα 1,2 (L 3 →M 4,5) and Lβ 1 (L 2 →M 4) x-ray satellite and hypersatellite structures in zirconium, molybdenum, and palladium atoms multiply ionized by impact with 278.6-MeV oxygen ions is reported. The x-ray spectra were measured with a high-resolution von Hamos bent crystal spectrometer. For the interpretation of the complex spectral features, relativistic multiconfiguration Dirac-Fock calculations were performed for all multivacancy configurations expected to contribute to the observed spectra. The data analysis clearly demonstrates that the spectra are dominated by structures originating from (L −1 M −m N −n) satellite and (L −2 M −m N −n) hypersatellite transitions corresponding to the radiative decay of the excited multivacancy configurations. The ionization probabilities of the L and M shell were determined from the data and compared with theoretical predictions from the geometrical model and the semiclassical approximation, using in the latter case both relativistic hydrogenlike and self-consistent Dirac-Hartree-Fock wave functions. The results support the independent electron picture of the multiple ionization. They also show the importance of using relativistic and self-consistent electronic wave functions for the L and M shells.

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Theory of alignment of atoms following ion-atom collisions

Cited by 20 publications

References 4 publications

Investigation of the vacancy sharing process in L-shell ionization of gold and bismuth by boron ions

Investigation of the vacancy sharing process in L-shell ionization of gold and bismuth by boron ions

Dynamical subshell coupling effects in L-shell ionization of thorium by heavy ions

Satellite and hypersatellite structures ofLα1,2andLβ1x-ray transitions in mid-
Czarnota
¹
,
Banaś
²
,
Berset
³

et al. 2013
Phys. Rev. A

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Theory of alignment of atoms following ion-atom collisions

Cited by 20 publications

References 4 publications

Investigation of the vacancy sharing process in L-shell ionization of gold and bismuth by boron ions

Investigation of the vacancy sharing process in L-shell ionization of gold and bismuth by boron ions

Dynamical subshell coupling effects in L-shell ionization of thorium by heavy ions

Satellite and hypersatellite structures ofLα1,2andLβ1x-ray transitions in mid-Czarnota1, Banaś2, Berset3 et al. 2013Phys. Rev. A

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About

Satellite and hypersatellite structures ofLα1,2andLβ1x-ray transitions in mid-
Czarnota
¹
,
Banaś
²
,
Berset
³

et al. 2013
Phys. Rev. A