Generation Process of High Vibration Level of N<SUB>2</SUB>(C<SUP>3</SUP>Π<SUB>u</SUB>) in Discharge of High E/n Region

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  • 高E/n放電空間における振動準位の高いN<SUB>2</SUB>(C<SUP>3</SUP>Π<SUB>u</SUB>)の生成過程
  • 高E/n放電空間における振動準位の高いN2(C3Πu)の生成過程
  • コウE n ホウデン クウカン ニ オケル シンドウ ジュンイ ノ タカイ N2 C3 パイ u ノ セイセイ カテイ
  • Generation Process of High Vibration Level of N<SUB>2</SUB>(C<SUP>3</SUP>&Pi;<SUB>u</SUB>) in Discharge of High E/n Region

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The authors have studied on generation processes of N2(C3Πu) in discharge of high E/n region. In this investigation, the spatial distribution of N2 Second Positive Bands was measured and was compared with the calculated results obtained by the Monte-Carlo method. From the results, it is suggested that N2(C3Πu) was generated by any processes including direct excitation from the ground state. To confirm the generation process except the direct one, time after glow method was used. As a result, slow decay component on intensity of N2 Second Positive Bands was detected. Its relaxation time was about 0.5ms. The relaxation time is similar to the effective life time of N2(A3Σu+). Then, in discharge of high E/n region, it is shown that the rate of N2(C3Πu, υ'=3, 4) generated by re-excitation process of N2(A3Σu+) mutual collision is high.

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