Excitation of the 6d 2D → 6p 2Po Radiative Transitions in the Pb+ Ion by Electron Impact

Viktoriya Roman,Anna Gomonai,Aleksandr Gomonai,Yuriy Hutych,Valdas Jonauskas,Sigitas Kučas

doi:10.3390/atoms9040102

Abstract

Results of experimental and theoretical investigation of electron-impact excitation of the 6s26d D2→6s26p P2o spectral transitions from the ground 6s26p P21/2o level in the Pb+ ion are presented. The experimental excitation functions for the transitions, measured by a VUV spectroscopy method, using the crossed electron and ion beams technique, reveal a rather distinct resonance structure resulting mainly from the electron decay of both atomic and ionic autoionizing states. The absolute values of the emission cross-sections, obtained by normalizing the experimental data at the incident electron energy 100 eV by those calculated using the Flexible Atomic Code software package, were found to be (0.35 ± 0.17) × 10–16 cm2 for the 6s26d D23/2 → 6s26p P21/2o (λ143.4 nm) transition and (0.19 ± 0.09) × 10–16 cm2 for the 6s26d D25/2 → 6s26p P23/2o (λ182.2 nm) transition.

Highlights

IntroductionResults of experimental and theoretical investigation of electron-impact excitation of the 6s2 6d 2 D → 6s2 6p 2 P o spectral transitions from the ground 6s2 6p 2 P o1/2 level in the Pb+ ion are presented
We present the results of experimental and theoretical investigation for electron-impact excitation of the Pb+ ionn corresponding to the 6s2 6d 2 D → 6s2 6p 2 P o radiative transitions, as follows: e + Pb+ (6s2 6p 2 P o1/2 )
The intensities of the λ143.4 nm and λ182.2 nm spectral lines were measured at the incident electron energy 100 eV in the same experiment

Summary

Introduction

Results of experimental and theoretical investigation of electron-impact excitation of the 6s2 6d 2 D → 6s2 6p 2 P o spectral transitions from the ground 6s2 6p 2 P o1/2 level in the Pb+ ion are presented. The absolute values of the emission cross-sections, obtained by normalizing the experimental data at the incident electron energy 100 eV by those calculated using the Flexible Atomic Code software package, were found to be (0.35 ± 0.17) × 10–16 cm for the 6s2 6d 2 D 3/2 → 6s2 6p 2 P o1/2 (λ143.4 nm) transition and (0.19 ± 0.09) × 10–16 cm for the 6s2 6d 2 D 5/2 → 6s2 6p 2 P o3/2 (λ182.2 nm) transition.

Methods

Results

Conclusion