Radiative Characteristics of N_2 Second Positive Bands with Non-Boltzmann Rotational Population Distribution : Modeling Based upon Simple Collision Theory and Effect of Radiative Transition

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  • 非ボルツマン回転粒子数分布を考慮したN_2 2+バンドの放射特性 : 単純衝突理論によるモデリングと放射遷移の影響
  • ヒボルツマン カイテン リュウシスウ ブンプ オ コウリョ シタ N22 バンド ノ ホウシャ トクセイ タンジュン ショウトツ リロン ニ ヨル モデリング ト ホウシャ センイ ノ エイキョウ

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The characteristic intensity distribution in the N_2 second positive bands observed in high-temperature air plasmas generated by a micro-air plasma-jet generator was reconstructed by the theoretical spectra with predissociation and non-Boltzmann rotational population distribution. In order to construct the precise theoretical spectra, collisional transition rate coefficient that was applicable at high temperatures was proposed based upon a simple collision theory. In addition, the effect of the radiative transition from C ^3Π_u to B ^3Π_g state was included in the master equation. The theoretical spectra with non-Boltzmann rotational population distribution calculated with such factors agreed very well with the experimental ones.

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