z-logo
open-access-imgOpen Access
Особенности возбуждения линий главной серии атомов подгруппы цинка электронным ударом. I. Кадмий
Author(s) -
Г.Г. Богачев,
Е.Ю. Ремета
Publication year - 2020
Publication title -
žurnal tehničeskoj fiziki
Language(s) - English
Resource type - Journals
eISSN - 1726-748X
pISSN - 0044-4642
DOI - 10.21883/os.2020.02.48957.266-19
Subject(s) - atomic physics , electron , excited state , excitation , maxima , physics , atom (system on chip) , autoionization , range (aeronautics) , population , ion , ionization , quantum mechanics , materials science , photoionization , art , demography , sociology , performance art , computer science , embedded system , composite material , art history
Using the technique of crossed beams of slow electrons and cadmium atoms, the excitation functions of three spectral lines of its principal series (166.9, 152.7, 146.9 nm) outgoing from the 5snp 1Po1 levels were measured (n = 6, 7, 8, respectively). In the range of electron energies 12–18 eV, a manifestation of the post-collision interaction of slow scattered electrons and fast electrons ejected during the decay of autoionizing states was found in these functions. This process, at incident electron energies of 11.8, 12.4, and 16.6 eV, leads to additional population of the initial levels of spectral transitions and, correspondingly, to maxima on the excitation functions due to the capture of a scattered electron to these excited levels. The terms of autoionizing states of the atom responsible for the observed maxima on the excitation functions of spectral lines are established. In the classical approximation, by two methods – direct calculation and least squares approximation – estimate the effective widths of the electronic decay of autoionizing states, the combined action of which leads to an energy shift of the maxima. Approximate calculation formulas are used, which are valid for various relations between the post-collision shift of the maxima on the excitation functions and the binding energy of atomic levels.

The content you want is available to Zendy users.

Already have an account? Click here to sign in.
Having issues? You can contact us here