Abstract
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 Hα line, is in the range (1.6–7.4) × 1017 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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Schedule a callMore From: Journal of Physics B: Atomic, Molecular and Optical Physics
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