Experimental determination of the Stark parameters of PbI, PbII, and CuII spectral lines in a plasma of the pulse capillary discharge

Fishman, I. S.; Sarandaev, E. V.; Салахов, М. Х.

doi:10.1016/0022-4073(94)90053-1

Cited by 10 publications

(9 citation statements)

References 20 publications

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“…Semiempirical values for the 5545.7 and 5610.4 Å lines (wavelengths in vacuum) using the Coulomb approximation were also presented in this work. Fishman et al [11] determined experimental values for three visible lines (4388.1, 4246.3 and 6661.8 Å -wavelengths in vacuum) using an impulsive capillary light source and confirmed the values obtained by these authors in earlier work [12].…”

Section: Introductionsupporting

confidence: 78%

“…Additional spectroscopic data of Pb II were employed for temperature determination. [11]. e Salakhov et al [12].…”

Section: Discussionmentioning

confidence: 99%

“…In the sixth column the experimental values of other authors are displayed [8,[10][11][12]23,24]. In the seventh column we present our theoretical values calculated in a previous work [13].…”

Section: Pb II Stark Broadening Parametermentioning

confidence: 99%

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Application of a laser produced plasma: Experimental Stark widths of single ionized lead lines

Colón

Alonso‐Medina

2006

Spectrochimica Acta Part B: Atomic Spectroscopy

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The optical emission spectroscopy from laser produced plasma generated by a 10,640 Å radiation, with an irradiance of 1.4 × 10 10 W cm − 2 on several lead targets, in vacuum and in an atmosphere of argon, was recorded and analyzed between 1900 and 7000 Å. The Local Thermodynamic Equilibrium conditions and plasma homogeneity have been checked. Stark widths for 31 lines of Pb II have been measured. These lines measured in this work correspond to the transitions 7s → 6p, n(n = 8, 9, 10)s → 7p, n(n = 7, 8)p → 7s, n(n = 7, 8)p → 6p 2 , n(n = 7, 8)d → 7p, n(n = 5, 6)f → 6d, n(n = 5, 6)f → 6p 2 . The population level distribution and the corresponding temperatures were obtained using Boltzmann plots. The plasma electron densities were determined using well-known Stark broadening parameters of spectral lines. Special attention was dedicated to the possible self-absorption of the different transitions. Temporal evolution of the plasma parameters was studied between 0.1 and 9 μs. Stark broadening parameters of the spectral lines were measured at 2.5 μs where the electron temperature was close to 11,300 K and the electron density to 0.8 × 10 16 cm − 3 . The experimental results obtained have been compared with the experimental and theoretical values given by other authors. A systematic trend of this parameter versus temperature of 4244.9 Å Pb II line has been presented.

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Section: Introductionsupporting

confidence: 78%

“…Additional spectroscopic data of Pb II were employed for temperature determination. [11]. e Salakhov et al [12].…”

Section: Discussionmentioning

confidence: 99%

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Application of a laser produced plasma: Experimental Stark widths of single ionized lead lines

Colón

Alonso‐Medina

2006

Spectrochimica Acta Part B: Atomic Spectroscopy

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“…10 Fishman et al. 11 determined experimental values for three visible lines (4388.1 Å, 4246.3 Å, and 6661.8 Å, wavelengths in vacuum) using an impulsive capillary light source and confirmed the values obtained by these authors in earlier work. 12 In Colón and Alonso-Medina, 13 the laser-induced lead plasma emission is used as light source to determine experimental Stark width of 31 Pb(II) spectral lines in the range of 1900–7000 Å.…”

Section: Introductionsupporting

confidence: 68%

Measurement of Laser-Induced Plasma: Stark Broadening Parameters of Pb(II) 2203.5 and 4386.5 Å Spectral Lines

Alonso‐Medina

2019

Appl Spectrosc

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In this work, the Stark broadening parameters (widths and shifts) of the 2203.5 Á and 4386.5 Á Pb(II) spectral lines have been investigated and measured in laser-induced breakdown spectroscopy (LIBS), using a lead sample (99.999% purity). A Q-switched neodymium-doped yttrium aluminum garnet (Nd:YAG) laser operating at its fundamental wavelength ( 1 O 640 Á), generating pulses of 290 mJ, 7 ns of duration, and a repeat frequency of 20 Hz, has been used far the ablation of said lead sample in vacuum and in a controlled argon atmosphere. A study to understand the expansion dynamics of the lead produced plasma was performed. The spectra have been obtained and measured at different time delays of the plasma evolution in the range of 0.15-9 µs, at which the temperature and electron number density are in the ranges of 28 200-8000 K and 1.3 x 10 1 7 to 3 x 10 15 cm-3 , respectively. A graphical representation of the evolution of temperature and electron number density versus 0.3 to 6.5 µs delay from the laser pulse is presented. The important effect of the different environment where the plasma expands has been pointed out. Local thermodynamic equilibrium conditions have been checked. The obtained results of the Stark widths and shifts at the different temperatures and densities of electrons have been compared with the limited data available in the literature. This study aims to obtain more accurate values far these parameters and also to establish regularities and similarities far said parameters. 3,

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“…From the known Stark FWHM (full width at half intensity maximum, W ), the most important plasma parameter, the electron density, can be obtained under the assumption of the local thermodynamic equilibrium (LTE). The literature devoted to Cu I and Cu II spectral line Stark widths is not extensive [8,9] (and references therein) and we have found only three experiments [10][11][12] dealing with 19 Cu II W values. No theoretical Cu II W data exists according to the [8] database.…”

Section: Introductionmentioning

confidence: 99%

Stark broadening in the laser-induced Cu I and Cu II spectra

Skočić

Burger

Nikolić

et al. 2013

J. Phys. B: At. Mol. Opt. Phys.

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In this work we present the Stark widths (W) of 22 neutral (Cu I) and 100 singly ionized (Cu II) copper spectral lines that have been measured at 18 400 K and 19 300 K electron temperatures and 6.3 × 10 22 m−3 and 2.1 × 10 23 m−3 electron densities, respectively. The experiment is conducted in the laser-induced plasma—the Nd:YAG laser, operating at 532 nm, was used to produce plasma from the copper sample in the residual air atmosphere at a pressure of 8 Pa. The electron temperature and density were estimated by the Boltzmann-plot method and from the Saha equation. The investigated Cu I lines belong to the 4s–4p′, 4s 2–4p″ and 4p′–4d′ transitions while Cu II spectral lines belong to the 4s–4p, 4p–5s, 4p–4d, 4p–4s 2, 4d–4f and 4d–v transitions. Comparison with existing experimental data was possible only in the case of 17 Cu II lines due to a lack of experimental and theoretical values. The rest of the data, Stark widths of 22 Cu I and 83 Cu II lines are published for the first time.

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Experimental determination of the Stark parameters of PbI, PbII, and CuII spectral lines in a plasma of the pulse capillary discharge

Cited by 10 publications

References 20 publications

Application of a laser produced plasma: Experimental Stark widths of single ionized lead lines

Application of a laser produced plasma: Experimental Stark widths of single ionized lead lines

Measurement of Laser-Induced Plasma: Stark Broadening Parameters of Pb(II) 2203.5 and 4386.5 Å Spectral Lines

Stark broadening in the laser-induced Cu I and Cu II spectra

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