Electron-helium scattering in Debye plasmas
Electron-helium scattering in weakly coupled hot-dense (Debye) plasma has been investigated using the convergent close-coupling method. The Yukawa-type Debye-Hückel potential has been used to describe plasma Coulomb screening effects. Benchmark results are presented for momentum transfer cross secti...
| Main Authors: | , , , |
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| Format: | Journal Article |
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American Physical Society
2011
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| Online Access: | http://hdl.handle.net/20.500.11937/41584 |
| _version_ | 1848756185822396416 |
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| author | Zammit, Mark Fursa, Dmitry Bray, Igor Janev, R. |
| author_facet | Zammit, Mark Fursa, Dmitry Bray, Igor Janev, R. |
| author_sort | Zammit, Mark |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | Electron-helium scattering in weakly coupled hot-dense (Debye) plasma has been investigated using the convergent close-coupling method. The Yukawa-type Debye-Hückel potential has been used to describe plasma Coulomb screening effects. Benchmark results are presented for momentum transfer cross sections, excitation, ionization, and total cross sections for scattering from the ground and metastable states of helium. Calculations cover the entire energy range up to 1000 eV for the no screening case and various Debye lengths (5–100 a0). We find that as the screening interaction increases, the excitation and total cross sections decrease, while the total ionization cross sections increase. |
| first_indexed | 2025-11-14T09:08:11Z |
| format | Journal Article |
| id | curtin-20.500.11937-41584 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T09:08:11Z |
| publishDate | 2011 |
| publisher | American Physical Society |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-415842017-09-13T15:57:07Z Electron-helium scattering in Debye plasmas Zammit, Mark Fursa, Dmitry Bray, Igor Janev, R. Electron-helium scattering in weakly coupled hot-dense (Debye) plasma has been investigated using the convergent close-coupling method. The Yukawa-type Debye-Hückel potential has been used to describe plasma Coulomb screening effects. Benchmark results are presented for momentum transfer cross sections, excitation, ionization, and total cross sections for scattering from the ground and metastable states of helium. Calculations cover the entire energy range up to 1000 eV for the no screening case and various Debye lengths (5–100 a0). We find that as the screening interaction increases, the excitation and total cross sections decrease, while the total ionization cross sections increase. 2011 Journal Article http://hdl.handle.net/20.500.11937/41584 10.1103/PhysRevA.84.052705 American Physical Society restricted |
| spellingShingle | Zammit, Mark Fursa, Dmitry Bray, Igor Janev, R. Electron-helium scattering in Debye plasmas |
| title | Electron-helium scattering in Debye plasmas |
| title_full | Electron-helium scattering in Debye plasmas |
| title_fullStr | Electron-helium scattering in Debye plasmas |
| title_full_unstemmed | Electron-helium scattering in Debye plasmas |
| title_short | Electron-helium scattering in Debye plasmas |
| title_sort | electron-helium scattering in debye plasmas |
| url | http://hdl.handle.net/20.500.11937/41584 |