Beam-Foil Mean Life Measurements of Levels in N I–N V

Abstract
Using the beam-foil technique, we have measured radiative mean lives for 41 levels in N I–N V within the wavelength range 374 to 2064 Å. In some cases we deduce experimental absorption oscillator strengths for comparison with recent theoretical calculations of Nicolaides, who used the 'Non-closed shell many electron theory' of Öksüz and Sinanoğlu. The agreement for lines of higher stages of ionization is very good.

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