低圧マイクロ波放電プラズマのN2 2+バンドの放射と温度特性
低圧マイクロ波放電プラズマのN2 2+バンドの放射と温度特性
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低压微波放电等离子体N2 2+ 波段的辐射和温度特性
DOI：
10.2322/jjsass.55.232
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发表时间：
2007
期刊：
影响因子：
--
通讯作者：
文雄 高草木
中科院分区：
文献类型：
--
作者：
健二 澁澤;賢人 舩津;紘行 白井;文雄 高草木
在直径为9.5mm、长为42 mm的微波放电管中对微波放电低压氮等离子体进行了光谱测量。观察到N2 2+带的强辐射和N2+ 1-、N2 1+和NO γ带的弱辐射。在电弧放电微空气等离子体射流中观察到了N2 2+高振动能级带的独特强度分布。用N2 2+（0，2）和（1，3）谱带的光谱匹配方法测定了转动和振动温度。通过N2 2+带的强度研究了等离子体的振动态。由于实验谱不能用通常的单转动温度平衡辐射理论重建，因此考虑了预离解效应和理论非Boltzmann转动布居分布，重建了理论谱，并与实验谱进行了比较.结果表明，等离子体的振动和转动温度依赖于转动布居分布的理论模型，转动温度依赖于振动态，等离子体处于振动非平衡态。
Spectroscopic measurements of microwave-discharged low-pressure nitrogen plasmas were made in a tube with a diameter of 9.5mm and length of 42mm. Intense radiation of N2 2+ bands and weak radiations of N2+ 1-, N2 1+, and NO γ bands were observed. Unique intensity distribution of N2 2+ bands with high vibrational levels was observed as in the arc-discharged micro-air plasma-jets. Rotational and vibrational temperatures were determined by a spectral matching method with N2 2+ (0, 2) and (1, 3) bands. The vibrational state of the plasma was also investigated by the N2 2+ band intensity. As the experimental spectra could not be reconstructed by a usual equilibrium radiation theory with one rotational temperature, the theoretical spectra were constructed with the effects of predissociation and theoretical non-Boltzmann rotational population distribution, and were compared with the experimental ones. As a result, it was found that the vibrational and rotational temperatures were dependent on the theoretical model for rotational population distribution, that the rotational temperature was dependent on the vibrational states, and that the plasmas were in the vibrational non-equilibrium state.