TY  - CONF
AU  - Mirkovic, M. A.
AU  - Nedeljković, Nataša N.
AU  - Božanić, Dušan K.
PY  - 2010
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/6907
AB  - Processes of formation and decay of the Rydberg states of multiply charged ions escaping solid surfaces with intermediate velocities (v approximate to 1 a.u.) represent complex quantum events that require a detailed quantum description. We have developed a two-state vector model for the population process, with the functions Psi(1) and Psi(2) for definition of the state of a single active electron. The electron exchange between the solid and the moving ion is described by a mixed flux through a plane positioned between them. For the low values of the angular momentum quantum numbers l the radial electronic coordinate rho can be neglected, whereas for the large-l values a wide space region around the projectile trajectory was taken into account. The reionization of the previously populated states is considered as a decay of the wave function Psi(2). The corresponding decay rates are obtained by an appropriate etalon equation method: in the large-l case the radial electronic coordinate rho is treated as a variational parameter. The theoretical predictions based on that population-reionization mechanism are compared with the available beam-foil experimental data, as well as the experimental data obtained in the interaction of multiply charged ions with micro-capillary foil. Generally, the model reproduces the experimentally observed non-linear trend of the l distributions from l = 0 to l(max) = n - 1.
C3  - Journal of Physics: Conference Series
T1  - Formation and decay of the Rydberg states of multiply charged ions interacting with solid surfaces
VL  - 257
DO  - 10.1088/1742-6596/257/1/012010
ER  - 

@conference{
author = "Mirkovic, M. A. and Nedeljković, Nataša N. and Božanić, Dušan K.",
year = "2010",
abstract = "Processes of formation and decay of the Rydberg states of multiply charged ions escaping solid surfaces with intermediate velocities (v approximate to 1 a.u.) represent complex quantum events that require a detailed quantum description. We have developed a two-state vector model for the population process, with the functions Psi(1) and Psi(2) for definition of the state of a single active electron. The electron exchange between the solid and the moving ion is described by a mixed flux through a plane positioned between them. For the low values of the angular momentum quantum numbers l the radial electronic coordinate rho can be neglected, whereas for the large-l values a wide space region around the projectile trajectory was taken into account. The reionization of the previously populated states is considered as a decay of the wave function Psi(2). The corresponding decay rates are obtained by an appropriate etalon equation method: in the large-l case the radial electronic coordinate rho is treated as a variational parameter. The theoretical predictions based on that population-reionization mechanism are compared with the available beam-foil experimental data, as well as the experimental data obtained in the interaction of multiply charged ions with micro-capillary foil. Generally, the model reproduces the experimentally observed non-linear trend of the l distributions from l = 0 to l(max) = n - 1.",
journal = "Journal of Physics: Conference Series",
title = "Formation and decay of the Rydberg states of multiply charged ions interacting with solid surfaces",
volume = "257",
doi = "10.1088/1742-6596/257/1/012010"
}

Mirkovic, M. A., Nedeljković, N. N.,& Božanić, D. K.. (2010). Formation and decay of the Rydberg states of multiply charged ions interacting with solid surfaces. in Journal of Physics: Conference Series, 257.
https://doi.org/10.1088/1742-6596/257/1/012010

Mirkovic MA, Nedeljković NN, Božanić DK. Formation and decay of the Rydberg states of multiply charged ions interacting with solid surfaces. in Journal of Physics: Conference Series. 2010;257.
doi:10.1088/1742-6596/257/1/012010 .

Mirkovic, M. A., Nedeljković, Nataša N., Božanić, Dušan K., "Formation and decay of the Rydberg states of multiply charged ions interacting with solid surfaces" in Journal of Physics: Conference Series, 257 (2010),
https://doi.org/10.1088/1742-6596/257/1/012010 . .

TY  - JOUR
AU  - Nedeljković, Nataša N.
AU  - Božanić, Dušan K.
PY  - 2010
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/3939
AB  - The ionization dynamics of slow hydrogenlike Rydberg atoms (principal quantum number n GT GT 1) approaching solid surfaces is considered via an ion-collection electric field, using an appropriate etalon equation method. The complex energy eigenvalue problem is solved in the critical region R approximate to R(c) approximate to R(c)(I) of the ion-surface distances R in which the ionization process is mainly localized and the parabolic symmetry is preserved. The relatively simple analytical forms for the parabolic rates enable us to elucidate the main features of the self-consistent ionization dynamics of the projectiles with the time-dependent charges. The ionization distances R(c)(I) are calculated and an agreement of the averaged probability (for the atomic beam) with the corresponding experimental results is discussed for the relevant parameters of the ion-surface system. The formulas are suggested for the simulation of the experimental signal and for deducing the R(c)(I) values from this signal.
T2  - Physical Review A
T1  - Ionization dynamics via ion-collection field of Rydberg atoms approaching metal surfaces
VL  - 81
IS  - 3
DO  - 10.1103/PhysRevA.81.032902
ER  - 

@article{
author = "Nedeljković, Nataša N. and Božanić, Dušan K.",
year = "2010",
abstract = "The ionization dynamics of slow hydrogenlike Rydberg atoms (principal quantum number n GT GT 1) approaching solid surfaces is considered via an ion-collection electric field, using an appropriate etalon equation method. The complex energy eigenvalue problem is solved in the critical region R approximate to R(c) approximate to R(c)(I) of the ion-surface distances R in which the ionization process is mainly localized and the parabolic symmetry is preserved. The relatively simple analytical forms for the parabolic rates enable us to elucidate the main features of the self-consistent ionization dynamics of the projectiles with the time-dependent charges. The ionization distances R(c)(I) are calculated and an agreement of the averaged probability (for the atomic beam) with the corresponding experimental results is discussed for the relevant parameters of the ion-surface system. The formulas are suggested for the simulation of the experimental signal and for deducing the R(c)(I) values from this signal.",
journal = "Physical Review A",
title = "Ionization dynamics via ion-collection field of Rydberg atoms approaching metal surfaces",
volume = "81",
number = "3",
doi = "10.1103/PhysRevA.81.032902"
}

Nedeljković, N. N.,& Božanić, D. K.. (2010). Ionization dynamics via ion-collection field of Rydberg atoms approaching metal surfaces. in Physical Review A, 81(3).
https://doi.org/10.1103/PhysRevA.81.032902

Nedeljković NN, Božanić DK. Ionization dynamics via ion-collection field of Rydberg atoms approaching metal surfaces. in Physical Review A. 2010;81(3).
doi:10.1103/PhysRevA.81.032902 .

Nedeljković, Nataša N., Božanić, Dušan K., "Ionization dynamics via ion-collection field of Rydberg atoms approaching metal surfaces" in Physical Review A, 81, no. 3 (2010),
https://doi.org/10.1103/PhysRevA.81.032902 . .