Measurement of Stark widths of Ni II spectral lines by laser induced breakdown spectroscopy

被引：13

作者：

Aguilera, J. A. ^{[1
]}

Aragon, C. ^{[1
]}

Manrique, J. ^{[2
]}

机构：

[1] Univ Publ Navarra, Dept Fis, E-31006 Pamplona, Spain

[2] Univ CEU San Pablo, Fac Farm, E-28668 Madrid, Spain

来源：

JOURNAL OF QUANTITATIVE SPECTROSCOPY & RADIATIVE TRANSFER | 2013年 / 114卷

关键词：

Stark broadening; Stark width; Laser induced breakdown spectroscopy; Ni II; SHIFTS; PLASMA;

D O I：

10.1016/j.jqsrt.2012.08.016

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

The Stark widths of 53 Ni II spectral lines have been measured by laser induced breakdown spectroscopy. The laser induced plasmas have been generated from Ni-Cu and Ni-Al alloys with a wide range of nickel concentrations. The electron density at the different instants of the plasma lifetime has been determined from the Stark broadening of the H-alpha line and is in the range (1.6-6.8) x 10(17) cm(-3). The plasma temperature, measured by the Boltzmann plot method, is in the range 13100-18000 K. Within the ranges of electron density and temperature in the experiment and the statistical errors, the Stark widths are found to be proportional to the electron density. A procedure, based on the curve-of-growth methodology and the use of samples with different nickel concentrations, has been applied to reduce self-absorption. The Stark widths obtained are compared to experimental and theoretical data available in the literature. (C) 2012 Elsevier Ltd. All rights reserved.

引用

页码：151 / 156

页数：6

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