Beam-foil Study of Nitrogen in the Vacuum Ultraviolet

Abstract

Beam-foil spectra of nitrogen have been studied in the wavelength region 280-1 230 Å, employing linewidths of about 0.7 Å. Lifetime measurements have been performed for 28 terms in N II-N VI and new classifications have been proposed in N II, III, and V. Where comparison with previous results is possible, good agreement is generally found with the most recent beam-foil determinations or with configuration-interaction calculations. For seven terms there exist no previous experimental or theoretical results.