Stark Width Regularities within Neutral Calcium Spectral Series

Abstract

Dependences of electron and proton impact Stark width on the upper level ionization potential within different series of the neutral calcium spectral lines have been evaluated and discussed. The similar dependences previously found for the electron impact contribution were also obtained for the proton impact contribution to the Stark broadening. The emphasis is on the term structure influence on the studied Stark width dependences. The influence of the lower transition level and transition term is higher at low temperatures. After establishing these dependences, predictions were made for Stark widths of neutral calcium spectral lines not measured experimentally or calculated theoretically until now.

Stark Widths Regularities Within: ns-np, np-ns, np-nd, nd-np and nd-nf Spectral Series of Potassium Isoelectronic Sequence

“…Influence of electron density and temperature on Stark broadening of spectral lines, within spectral series of potassium isoelectronic sequence, have been studied before Equation (1) has been applied in regularity analyzing procedure. Regularity approach used in present paper has been successfully applied previous articles of our group [8][9][10][11][12][13][14][15], where other emitters were analyzed.…”

Stark broadening measurements in plasmas produced by laser ablation of hydrogen containing compounds

“…Stark broadening calculations, based on the semiclassical perturbation formalism, have been performed for many Ca [19,32] and Ca + transitions [33,34]. The correlation of Stark broadening with the energy gap between the upper-level of the transition and the ionization potential was also investigated [35].…”