5 Conclusion

In general, our new experimental Stark FWHM data agree, within the experimentally uncertainties and reliability of the theory, with the theoretical predictions based on the semiclassical-perturbation formalism that include the influence of the ion contribution to the Stark broadening. The only exception is the w value at a 54 000 K electron temperature in the case of the 3p-3d transition. It should be pointed out that same behaviour is shown for the experimental data from Glenzer et al. (1994a) at about 90 000 K electron temperature. In the case of Stark shifts, we have measured values which were equal to zero. Within experimental uncertainties they agree with calculated data obtained on the basis of the semiclassical-perturbation formalism.