Convergent-close-coupling calculations for excitation and ionization processes of electron-hydrogen collisions in Debye plasmas
Electron-hydrogen scattering in weakly coupled hot-dense plasmas has been investigated using the convergent-close-coupling method. The Yukawa-type Debye-Hckel potential has been used to describe the plasma screening effects. The target structure, excitation dynamics, and ionization process change dr...
| Main Authors: | , , |
|---|---|
| Other Authors: | |
| Format: | Journal Article |
| Published: |
American Physical Society
2010
|
| Subjects: | |
| Online Access: | http://hdl.handle.net/20.500.11937/36746 |
| _version_ | 1848754856501706752 |
|---|---|
| author | Zammit, M. Fursa, Dmitry Bray, Igor |
| author2 | RANZCR / AIR / FRO / ACPSEM |
| author_facet | RANZCR / AIR / FRO / ACPSEM Zammit, M. Fursa, Dmitry Bray, Igor |
| author_sort | Zammit, M. |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | Electron-hydrogen scattering in weakly coupled hot-dense plasmas has been investigated using the convergent-close-coupling method. The Yukawa-type Debye-Hckel potential has been used to describe the plasma screening effects. The target structure, excitation dynamics, and ionization process change dramatically as the screening is increased. Excitation cross sections for the 1s-2s,2p,3s,3p,3d and 2s-2p,3s,3p,3d transitions and total and total ionization cross sections for the scattering from the 1s and 2s states are presented. Calculations cover the energy range from thresholds to high energies (250 eV) for various Debye lengths. We find that as the screening increases, the excitation and total cross sections decrease, while the total ionization cross sections increase. |
| first_indexed | 2025-11-14T08:47:03Z |
| format | Journal Article |
| id | curtin-20.500.11937-36746 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T08:47:03Z |
| publishDate | 2010 |
| publisher | American Physical Society |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-367462017-09-13T15:55:04Z Convergent-close-coupling calculations for excitation and ionization processes of electron-hydrogen collisions in Debye plasmas Zammit, M. Fursa, Dmitry Bray, Igor RANZCR / AIR / FRO / ACPSEM Scattering Atomic-Hydrogen Helium Dense-Plasma Potentials Impact Ionization Electron-hydrogen scattering in weakly coupled hot-dense plasmas has been investigated using the convergent-close-coupling method. The Yukawa-type Debye-Hckel potential has been used to describe the plasma screening effects. The target structure, excitation dynamics, and ionization process change dramatically as the screening is increased. Excitation cross sections for the 1s-2s,2p,3s,3p,3d and 2s-2p,3s,3p,3d transitions and total and total ionization cross sections for the scattering from the 1s and 2s states are presented. Calculations cover the energy range from thresholds to high energies (250 eV) for various Debye lengths. We find that as the screening increases, the excitation and total cross sections decrease, while the total ionization cross sections increase. 2010 Journal Article http://hdl.handle.net/20.500.11937/36746 10.1103/PhysRevA.82.052705 American Physical Society restricted |
| spellingShingle | Scattering Atomic-Hydrogen Helium Dense-Plasma Potentials Impact Ionization Zammit, M. Fursa, Dmitry Bray, Igor Convergent-close-coupling calculations for excitation and ionization processes of electron-hydrogen collisions in Debye plasmas |
| title | Convergent-close-coupling calculations for excitation and ionization processes of electron-hydrogen collisions in Debye plasmas |
| title_full | Convergent-close-coupling calculations for excitation and ionization processes of electron-hydrogen collisions in Debye plasmas |
| title_fullStr | Convergent-close-coupling calculations for excitation and ionization processes of electron-hydrogen collisions in Debye plasmas |
| title_full_unstemmed | Convergent-close-coupling calculations for excitation and ionization processes of electron-hydrogen collisions in Debye plasmas |
| title_short | Convergent-close-coupling calculations for excitation and ionization processes of electron-hydrogen collisions in Debye plasmas |
| title_sort | convergent-close-coupling calculations for excitation and ionization processes of electron-hydrogen collisions in debye plasmas |
| topic | Scattering Atomic-Hydrogen Helium Dense-Plasma Potentials Impact Ionization |
| url | http://hdl.handle.net/20.500.11937/36746 |