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DC Field | Value | Language |
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dc.contributor.author | Borovik, V | - |
dc.contributor.author | Shafranyosh, I | - |
dc.contributor.author | Borovik, O | - |
dc.date.accessioned | 2020-10-29T04:34:29Z | - |
dc.date.available | 2020-10-29T04:34:29Z | - |
dc.date.issued | 2020 | - |
dc.identifier.uri | https://dspace.uzhnu.edu.ua/jspui/handle/lib/31100 | - |
dc.description.abstract | The 4p6 excitation-autoionization (EA) cross-section of Sr atoms has been measured at electron-impact energies from the threshold to 600eV. The cross-section has a pronounced resonance character in the near-threshold region, reaching its maximum value of (2.5±0.8)×10−16 cm2 at 24.5eV. The shape and absolute value of the cross-section are determined by the excitation dynamics and the decay mode of autoionizing states from 4p54d5s2, 4p54d2nl and 4p54d5snl configurations. A comparative analysis of the measured EA cross-section, the calculated 5s2 ionization cross-section and the available ionization data showed that (i) direct ionization of the 5s2 shell and EA of the 4p6 shell adequately describe the single ionization of Sr atoms; (ii) 4p6 EA contribution reaches 25% of the total single ionization cross-section of Sr atoms. | uk |
dc.language.iso | en | uk |
dc.publisher | Physica Scripta | uk |
dc.relation.ispartofseries | ;95 | - |
dc.subject | atom | uk |
dc.subject | autoionization | uk |
dc.subject | cross-section | uk |
dc.subject | single ionization | uk |
dc.title | Excitation-autoionization contribution to single ionization of Sr by electron impact | uk |
dc.type | Text | uk |
dc.pubType | Стаття | uk |
Appears in Collections: | Наукові публікації кафедри квантової електроніки |
Files in This Item:
File | Description | Size | Format | |
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sr-psr-total (1).pdf | 566.34 kB | Adobe PDF | View/Open |
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