Stark width measurements of Fe II lines with wavelengths in the range 230-260 nm

被引：13
作者：
Aguilera, J. A. [1 ]
Manrique, J. [2 ]
Aragon, C. [1 ]
机构：
[1] Univ Publ Navarra, Dept Fis, E-31006 Pamplona, Spain
[2] Univ San Pablo CEU, Fac Farm, E-28668 Madrid, Spain
来源：
JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS | 2011年 / 44卷 / 24期
关键词：
LASER-INDUCED PLASMA; IRON SPECTRAL-LINES; GROWTH;
D O I：
10.1088/0953-4075/44/24/245701
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
The experimental Stark widths of 26 Fe II lines with wavelengths in the range 230-260 nm have been determined by laser-induced breakdown spectroscopy. These measurements complete the data reported previously for the wavelength range 260-300 nm. The laser-induced plasmas have been generated from Fe-Cu and Fe-Ni samples. The curve-of-growth methodology is used to determine the iron concentration required to avoid self-absorption. The electron density at the different instants of the plasma lifetime, determined from the Stark broadening of the H a line, is in the range (1.6-7.4) x 10(17) cm(-3). The plasma temperature is in the range 12 900-15 200 K. The Stark widths obtained are compared with previous experimental and theoretical data.
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