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

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 sub( alpha ) line, is in the range (1.6-7.4) x 10 super(17) cm super(-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.