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首页> 外文期刊>Journal of Physics, D. Applied Physics: A Europhysics Journal >SPECTROSCOPIC TEMPERATURE MEASUREMENTS IN A H-2 MICROWAVE DISCHARGE
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SPECTROSCOPIC TEMPERATURE MEASUREMENTS IN A H-2 MICROWAVE DISCHARGE

机译:H-2微波放电中的光谱温度测量

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We report temperature measurements in a low-pressure hydrogen microwave plasma. Translational temperatures both of H and of H-2 (using Doppler broadening), as well as the rotational temperature of H-2, are simultaneously determined. It is first shown that the rotational temperature of the H-2 excited d(3) Pi(u) state is not in equilibrium with the translational temperatures of the neutral particles. Then, using a high-resolution Fourier transform spectrometer, we show that the H atom kinetic temperature is higher than the H-2 one. This result is interpreted in considering the mechanisms of relaxation of the hot H atoms, produced by electron impact dissociation of H-2, in the molecules and on the tube walls. [References: 27]
机译:我们报告在低压氢微波等离子体中的温度测量。同时确定H和H-2的平移温度(使用多普勒展宽)以及H-2的旋转温度。首先表明,H-2激发的d(3)Pi(u)状态的旋转温度与中性粒子的平移温度不平衡。然后,使用高分辨率傅立叶变换光谱仪,我们证明了H原子的动力学温度高于H-2的动力学温度。通过考虑分子中和管壁中H-2的电子碰撞解离产生的热H原子的弛豫机理,可以解释该结果。 [参考:27]

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