LIAS Syham and Kamel ALIOUA (2020) Mobilité des ions N+ dans un gaz d'hélium par traitement quantique des section eddicaces. Molecular Physics
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Abstract
Abstract
The difliculty to reproduce the measured data by a classic-theoretical calculations of mobility of nitrogen ions N+ in dilute atom-gas of helium He at low temperatures T = 4.3 and 77 K mentioned in the work of Tanuma group, prompted us to try quantum calculations to minimize this failure. To do this, we have carried out the calculations of the potential
energy curves of the low lying states corresponding to the N+ +He ion-atom system using the
SA-CASSCF with MRCI ab initio methods including the Davidson and BSSE corrections. The transport coefficients of the N+ (3P) and N+ (1D) ions in He atom are then carefully determined with special emphasis on the behavior of the reduced mobility with the ratio E /N of the electric field and the gas density and try to explain its observed decrease near the value E/N ,...., 10Td.
The difliculty to reproduce the measured data by a classic-theoretical calculations of mobility of nitrogen ions N+ in dilute atom-gas of helium He at low temperatures T = 4.3 and 77 K mentioned in the work of Tanuma group, prompted us to try quantum calculations to minimize this failure. To do this, we have carried out the calculations of the potential
energy curves of the low lying states corresponding to the N+ +He ion-atom system using the
SA-CASSCF with MRCI ab initio methods including the Davidson and BSSE corrections. The transport coefficients of the N+ (3P) and N+ (1D) ions in He atom are then carefully determined with special emphasis on the behavior of the reduced mobility with the ratio E /N of the electric field and the gas density and try to explain its observed decrease near the value E/N ,...., 10Td.
Information
| Item Type | Thesis |
|---|---|
| Divisions |
» Laboratory of Physics for Matter and Radiation » Faculty of Science and Technology |
| ePrint ID | 2274 |
| Date Deposited | 2020-08-27 |
| Further Information | Google Scholar |
| URI | https://univ-soukahras.dz/en/publication/article/2274 |
BibTex
@phdthesis{uniusa2274,
title={Mobilité des ions N+ dans un gaz d'hélium par traitement quantique des section eddicaces},
author={LIAS Syham and Kamel ALIOUA},
year={2020},
school={Molecular Physics}
}
title={Mobilité des ions N+ dans un gaz d'hélium par traitement quantique des section eddicaces},
author={LIAS Syham and Kamel ALIOUA},
year={2020},
school={Molecular Physics}
}