Highly ionized spectra of the transition elements

Spectral lines of T1 VII to XII and isoelectronic transitions of wavelengths between 250 and 600 Å are classified Identifications of Fe XIV solar lines are confirmed, including the visible coronal line at 5302 86 Å The ions were excited in a plasma produced by a 500 MW laser beam focused onto metal targets. The target of the pure metal was situated at the Sirks focus of a three-metre, normal-incidence spectrograph