Strong higher-order resonant contributions to x-ray line polarization in hot plasmas
We studied angular distributions of x rays emitted in resonant recombination of highly charged iron and krypton ions, resolving dielectronic, trielectronic, and quadruelectronic channels. A tunable electron beam drove these processes, inducing x rays registered by two detectors mounted along and per...
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| Main Authors: | , , , |
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| Format: | Article (Journal) |
| Language: | English |
| Published: |
16 June 2016
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| In: |
Physical review
Year: 2016, Volume: 93, Issue: 6 |
| ISSN: | 2470-0053 |
| DOI: | 10.1103/PhysRevE.93.061201 |
| Online Access: | Verlag, lizenzpflichtig, Volltext: https://doi.org/10.1103/PhysRevE.93.061201 Verlag, lizenzpflichtig, Volltext: https://link.aps.org/doi/10.1103/PhysRevE.93.061201 
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| Author Notes: | Chintan Shah, Pedro Amaro, Rene Steinbrügge, Christian Beilmann, Sven Bernitt, Stephan Fritzsche, Andrey Surzhykov, José R. Crespo López-Urrutia and Stanislav Tashenov |
| Summary: | We studied angular distributions of x rays emitted in resonant recombination of highly charged iron and krypton ions, resolving dielectronic, trielectronic, and quadruelectronic channels. A tunable electron beam drove these processes, inducing x rays registered by two detectors mounted along and perpendicular to the beam axis. The measured emission asymmetries comprehensively benchmarked full-order atomic calculations. We conclude that accurate polarization diagnostics of hot plasmas can only be obtained under the premise of inclusion of higher-order processes that were neglected in earlier work. |
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| Item Description: | Gesehen am 05.05.2020 |
| Physical Description: | Online Resource |
| ISSN: | 2470-0053 |
| DOI: | 10.1103/PhysRevE.93.061201 |