Stark Width Regularities within Beryllium Spectral Series

Dojčinović, I. P.; Tapalaga, Irinel; Purić, J.

doi:10.1071/as11014

Cited by 9 publications

(6 citation statements)

References 30 publications

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“…Therefore, the aim of this paper is to study the dependences of electron, proton and ionized helium impact contributions to the Stark widths of helium neutral spectral lines originating from different spectral series on the upper‐level ionization potential. This is in continuation to already published papers devoted to regularities within the spectral series of Mg i (Tapalaga, Dojčinović & Purić 2011) and Be i (Dojčinović, Tapalaga & Purić 2011) spectral series. The emphasis will be on the term structure influence on the studied Stark parameter dependences.…”

Section: Introductionsupporting

confidence: 85%

“…Greater dissipation occurs only in the case of the 2p–4d (3) spectral line. It should be noted that, in contrast to a small number of existing experimental data for spectral series of Mg i (Tapalaga et al 2011) and Be i (Dojčinović et al 2011), there exist a high number of experimental data for He i spectral series. This provides us with an opportunity to use equations () and (2) to analyse the existing experimental data.…”

Section: Stark Width Regularitiesmentioning

confidence: 99%

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Stark parameter regularities of neutral helium lines within different spectral series

Dojčinović¹,

Tapalaga²,

Purić³

2011

Monthly Notices of the Royal Astronomical Society

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Stark width experimental and theoretical data of neutral helium spectral lines have been used to demonstrate their dependence on the upper-level ionization potential within different spectral series. The emphasis is on the term describing structure influence on the studied Stark-width dependences. After establishing these dependences, predictions were made for electron, proton and ionized helium impact contributions to the Stark widths of neutral helium spectral lines that have not been measured experimentally or calculated theoretically until now (transitions from high levels of He I). The accuracy of the data obtained is comparable with the accuracies of the experimental and theoretical values used in establishing the dependences.

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Section: Introductionsupporting

confidence: 85%

Section: Stark Width Regularitiesmentioning

confidence: 99%

Stark parameter regularities of neutral helium lines within different spectral series

Dojčinović¹,

Tapalaga²,

Purić³

2011

Monthly Notices of the Royal Astronomical Society

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“…Dependences of Stark widths on the upper level ionization potential have been investigated for N I-N V [51,68], O I-O VI [53,68], Ne I-Ne VI [65,68], Ar III, Ar IV [65], Cl II, Cl III, Cl IV, F I-F IV [66,69], Kr I-Kr IV, Xe I, Xe II, Xe III [67], Si I-Si IV [68,69], and C IV [69] spectral lines, within different spectral series of neutral beryllium [60], lithium [62,64], and sodium [63,64] isoelectronic sequences. These data were used for the consideration of general regularities of Stark broadening parameters for ion lines [70], Stark parameter regularities of multiply charged ion spectral lines originating from the same transition array [73], and for checking the dependence on the upper level ionization potential of electron impact widths using quantum calculations [75].…”

Section: Regularities and Systematic Trendsmentioning

confidence: 99%

Forty Years of the Applications of Stark Broadening Data Determined with the Modified Semiempirical Method

Dimitrijević

2020

Data

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The aim of this paper is to analyze the various uses of Stark broadening data for non-hydrogenic lines emitted from plasma, obtained with the modified semiempirical method formulated 40 years ago (1980), which are continuously implemented in the STARK-B database. In such a way one can identify research fields where they are applied and better see the needs of users in order to better plan future work. This is done by analysis of citations of the modified semiempirical method and the corresponding data in international scientific journals, excluding cases when they are used for comparison with other experimental or theoretical Stark broadening data or for development of the theory of Stark broadening. On the basis of our analysis, one can conclude that the principal applications of such data are in astronomy (white dwarfs, A and B stars, and opacity), investigations of laser produced plasmas, laser design and optimization and their applications in industry and technology (ablation, laser melting, deposition, plasma during electrolytic oxidation, laser micro sintering), as well as for the determination of radiative properties of various plasmas, plasma diagnostics, and investigations of regularities and systematic trends of Stark broadening parameters.

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“…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.…”

Section: Theoretical Backgroundmentioning

confidence: 99%

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

Trklja

Dojčinović

Tapalaga

et al. 2019

Atoms

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Results presented in this paper show a regular behaviour of Stark widths within the studied spectral series of potassium isoelectronic sequence. These regularities have been found and verified on the basis of the existing theoretical and experimental data being normalized for the same plasma conditions (chosen electron density and temperature). Using the available set of data the corresponding formulas expressing the Stark widths of the lines originated from the spectral series studied here as a function of the upper-level ionization potential and the rest core charge of the emitter seeing by the electron undergoing transition, are obtained here. Well established and verified dependence is used to calculate Stark width data needed but not available so far. For the purposes of the operation with a large number of data, algorithms for the analysis of Stark width dependence on temperature and electron density and for the investigation of the assumed correlation between Stark width and ionization potential of the upper level of analyzed transition, have been made. Developed algorithms enable fast data processing.

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Stark Width Regularities within Beryllium Spectral Series

Cited by 9 publications

References 30 publications

Stark parameter regularities of neutral helium lines within different spectral series

Stark parameter regularities of neutral helium lines within different spectral series

Forty Years of the Applications of Stark Broadening Data Determined with the Modified Semiempirical Method

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

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