Abstract

Results of recent calculations of multiplet strengths of atomic nitrogen (NI) are compared with arc emission measurements. Intensities of eleven infrared multiplets are measured and transformed into multiplet strength values applying the determined arc temperature values. Properly defined seven multiplet strength ratios are selected for comparison with results of calculations and previously obtained experimental data. Our measured multiplet strength ratios are in a very good agreement with the recent Breit-Pauli results of Tachiev and Froese Fischer.

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