Electron Impact Excitation of Xenon from the Ground State and the Metastable State to the 5 p ⁵ 7 p Levels

Abstract

Electron impact excitation cross sections from the ground state and the lowest metastable state 5𝑝 5 6𝑠 𝐽 = 2 to the excited states of the 5𝑝 5 7𝑝 configuration of xenon are calculated systematically using the fully relativistic distorted wave method. Special attention is paid to the configuration interaction effects in the wave-function expansion of target states. The results are in good agreement with the recent experimental data by Jung et al.[Phys. Rev. A 80 ( 2009) 062708] over the measured energy range. These accurate theoretical results can be used in the modeling and diagnosis of plasmas containing xenon.

Collisional-radiative model of xenon plasma with calculated electron-impact fine-structure excitation cross-sections

“…Sharma et al [31,32] have carried out further calculations of the TCS using the RDW approach for the excitations from the ground (5p 6 ) and excited metastable states 5p 5 6s (J=0, 2) to the fine-structure levels of the 5p 5 7p configuration in the incident electron energy range up to 200 eV. Recently, Chen et al [33] have also reported similar RDW excitation cross-sections as reported by Sharma et al [31] and compared both sets of results. From the above review on the electron excitation cross-sections of Xe atoms, it is obvious that there is still a lack of sufficient cross-section data for the fine-structure excitations from the ground and among the excited states for a reliable plasma modeling.…”

A xenon collisional-radiative model applicable to electric propulsion devices: II. Kinetics of the 6s, 6p, and 5d states of atoms and ions in Hall thrusters

“…Only for the latter, general computer codes exist [38][39][40][41] that can handle complex targets. Calculations of Xe excitation cross sections by the DW approach can be found in [42][43][44] and those by a semi-relativistic Breit-Pauli B-spline R-matrix method in [27]. In the present work we use the cross sections calculated by a fully relativistic Dirac B-spline R-matrix (DBSR) method for electron-impact excitations between Xe states [27] and those between Xe + states [26].…”

Resonance enhanced electron impact excitation for P-like Cu XV

“…[6] Hence, the emission lines from highly charged ions of copper, including Cu XV, are expected to be of diagnostic potential in the ICF plasma. To achieve this diagnostic goal, it is required that a large number of atomic parameters, such as the rates of electron impact excitation (EIE, which is the current research focus [7][8][9] ). One has to heavily rely on theoretical calculations due to the scarcity of the experimental data.…”