Please use this identifier to cite or link to this item:
https://dspace.uzhnu.edu.ua/jspui/handle/lib/31097
Title: | Excitation-autoionization of the 5p6 subshell in Ba atoms |
Authors: | Borovik, Vladimir Roman, Viktorija Kupliauskiene, Alicija Shafranyosh, Ivan Borovik, Oleksandr |
Keywords: | excitation-autoionization cross section, Ba atoms |
Issue Date: | 2019 |
Publisher: | THE EUROPEAN PHYSICAL JOURNAL D |
Series/Report no.: | 73;43 |
Abstract: | The excitation-autoionization cross section for the 5p6 subshell in Ba atoms was determined in an incident electron energy range from the lowest autoionization threshold at 15.61 eV up to 600 eV. The data were obtained by measuring the total intensity of ejected-electron spectra arising from the decay of the 5p5n1l1n2l2n3l3 autoionizing states. The energy behavior of the cross section is characterized by the presence of a strong resonance structure in the near-threshold energy region of 15.6{22.7 eV as well as a broad maximum around 80 eV. The cross section reaches its maximum value of (3:2 1:0) 1016 cm2 at 17.4 eV, which makes out a contribution of up to 25% to the total single-ionization cross section of Ba atoms. The role of particular con gurations in formation of the cross section is considered on the basis of the spectroscopic classi cation and excitation dynamics of the 5p5n1l1n2l2n3l3 autoionizing states. |
Type: | Text |
Publication type: | Стаття |
URI: | https://dspace.uzhnu.edu.ua/jspui/handle/lib/31097 |
Appears in Collections: | Наукові публікації кафедри квантової електроніки |
Files in This Item:
File | Description | Size | Format | |
---|---|---|---|---|
ba-epjd-tot.pdf | 626.13 kB | Adobe PDF | View/Open |
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.