Descripción
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The Stark full widths at half of themaximal line intensity (FWHM,?) have beenmeasured for 25 spectral lines of Pb III (15 measured for the first time) arising from the 5d106s8s, 5d106s7p, 5d106s5f and 5d106s5g electronic configurations, in a lead plasma produced by ablation with a Nd:YAG laser. The optical emission spectroscopy from a laser-induced plasma generated by a 10 640 Å radiation, with an irradiance of 2×1010Wcm?2 on a lead target (99.99% purity) in an atmosphere of argon was analysed in the wavelength interval between 2000 and 7000 Å. The broadening parameters were obtained with the target placed in argon atmosphere at 6 Torr and 400 ns after each laser light pulse, which provides appropriate measurement conditions. A Boltzmann plot was used to obtain the plasma temperature (21,400 K) and published values of the Starkwidths in Pb I, Pb II and Pb III to obtain the electron number density (7×1016cm?3); with these values, the plasma composition was determined by means of the Saha equation. Local Thermodynamic Equilibrium (LTE) conditions and plasma homogeneity has been checked. Special attention was dedicated to the possible self-absorption of the different transitions. Comparison of the new results with recent available data is also presented. | |
Internacional
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Si |
JCR del ISI
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Si |
Título de la revista
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Spectrochimica Acta Part B |
ISSN
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0584-8547 |
Factor de impacto JCR
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3,552 |
Información de impacto
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Volumen
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66 |
DOI
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10.1016/j.sab.2011.04.008 |
Número de revista
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6 |
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439 |
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443 |
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Ranking
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