Double-K-vacancy states in electron-impact single ionization of metastable two-electron N5+(1s2s 3S1) ions
The role of hollow states intermediately produced in electron-impact ionization of metastable He-like N5+(1s2s3S1) ions has been investigated in detail. A crossed-beam setup and suitable experimental techniques were employed for the measurement of accurate absolute cross sections and precise energy-...
| Main Authors: | , , , , , |
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| Format: | Journal Article |
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American Physical Society
2014
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| Online Access: | http://hdl.handle.net/20.500.11937/23527 |
| _version_ | 1848751175895089152 |
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| author | Mϋller, A. Borovik, A. Huber, K. Schippers, S. Fursa, Dmitry Bray, Igor |
| author_facet | Mϋller, A. Borovik, A. Huber, K. Schippers, S. Fursa, Dmitry Bray, Igor |
| author_sort | Mϋller, A. |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | The role of hollow states intermediately produced in electron-impact ionization of metastable He-like N5+(1s2s3S1) ions has been investigated in detail. A crossed-beam setup and suitable experimental techniques were employed for the measurement of accurate absolute cross sections and precise energy-scan data. Fine structures arising from K-shell excitations and associated resonances have been observed for this two-electron ion with less than ±0.5 eV uncertainty on the energy scale. Fine details, such as interference of the reaction pathways of direct ionization and excitation with capture of the incident electron followed by double-Auger decay, could be revealed. Ab initio calculations based on the convergent close coupling (CCC) approach are in good agreement with the experiment. |
| first_indexed | 2025-11-14T07:48:33Z |
| format | Journal Article |
| id | curtin-20.500.11937-23527 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T07:48:33Z |
| publishDate | 2014 |
| publisher | American Physical Society |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-235272017-09-13T14:00:17Z Double-K-vacancy states in electron-impact single ionization of metastable two-electron N5+(1s2s 3S1) ions Mϋller, A. Borovik, A. Huber, K. Schippers, S. Fursa, Dmitry Bray, Igor The role of hollow states intermediately produced in electron-impact ionization of metastable He-like N5+(1s2s3S1) ions has been investigated in detail. A crossed-beam setup and suitable experimental techniques were employed for the measurement of accurate absolute cross sections and precise energy-scan data. Fine structures arising from K-shell excitations and associated resonances have been observed for this two-electron ion with less than ±0.5 eV uncertainty on the energy scale. Fine details, such as interference of the reaction pathways of direct ionization and excitation with capture of the incident electron followed by double-Auger decay, could be revealed. Ab initio calculations based on the convergent close coupling (CCC) approach are in good agreement with the experiment. 2014 Journal Article http://hdl.handle.net/20.500.11937/23527 10.1103/PhysRevA.90.010701 American Physical Society fulltext |
| spellingShingle | Mϋller, A. Borovik, A. Huber, K. Schippers, S. Fursa, Dmitry Bray, Igor Double-K-vacancy states in electron-impact single ionization of metastable two-electron N5+(1s2s 3S1) ions |
| title | Double-K-vacancy states in electron-impact single ionization of metastable two-electron N5+(1s2s 3S1) ions |
| title_full | Double-K-vacancy states in electron-impact single ionization of metastable two-electron N5+(1s2s 3S1) ions |
| title_fullStr | Double-K-vacancy states in electron-impact single ionization of metastable two-electron N5+(1s2s 3S1) ions |
| title_full_unstemmed | Double-K-vacancy states in electron-impact single ionization of metastable two-electron N5+(1s2s 3S1) ions |
| title_short | Double-K-vacancy states in electron-impact single ionization of metastable two-electron N5+(1s2s 3S1) ions |
| title_sort | double-k-vacancy states in electron-impact single ionization of metastable two-electron n5+(1s2s 3s1) ions |
| url | http://hdl.handle.net/20.500.11937/23527 |