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Electron Energy Transfer Rate Coefficients of Carbon Dioxide

机译:二氧化碳的电子能量传递率系数

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摘要

An extensive set of integral cross sections (ICSs) for electron impact vibrational excitation of the CO2 molecule has been used to calculate electron energy transfer rate coefficients. The ICSs for electron impact symmetric stretch vibrational excitation are measured by using a high resolution double trochoidal electron spectrometer, while ICSs for the bending and asymmetric vibrations have been adopted from previous publications. Calculations of the energy transfer rate coefficients are performed for the equilibrium conditions in the mean electron energy range from 0 to 11 eV. By use of extended Monte Carlo simulations, electron energy distribution functions (EEDFs) and electron energy transfer rate coefficients are determined in the nonequilibrium conditions, for low and moderate values of the electric field over gas number density ratios, E/N, up to 150 Td. Contributions of higher vibrational levels are emphasized. The results are compared with the data available in the literature.
机译:用于CO 2分子的电子冲击振动激发的大量积分截面(ICS)已用于计算电子能量传递速率系数。通过使用高分辨率双摆线电子光谱仪测量用于电子冲击对称拉伸振动激发的ICS,而以前的出版物已采用了用于弯曲和非对称振动的ICS。在平均电子能量范围为0至11 eV的平衡条件下,进行能量传递速率系数的计算。通过使用扩展的蒙特卡洛模拟,可以在非平衡条件下确定电子能量分布函数(EEDF)和电子能量传递速率系数,其中电场的低值和中值相对于气体数密度比E / N最高为150 d强调了较高振动水平的贡献。将结果与文献中可用的数据进行比较。

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