Beam-foil Study of Nitrogen in the Vacuum Ultraviolet

Beam-foil spectra of nitrogen have been studied in the wavelength region 280-1 230 A, employing linewidths of about 0.7 A. 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.

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