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In a linear pulsed discharge of helium the spectrum of the atomic transition 4 3 D, F→2 3 P at → - 447.15 nm is measured time resolved by a multichannel analyzer. Pronounced structures of the line profile, reported by other authors could not be verified and helium molecular lines did not occur in the parameter range of this discharge below 100 Pa. The measured influence of spurious hydrogen might suggest the interpretation of the recently observed structures as being due to hydrogen molecular transitions.

The Influence of Molecular Transitions on the Spectrum of the Helium Line at λ= 447.15 nm in a Low-Pressure Discharge