The electron drift velocity, longitudinal diffusion and effective ionization coefficients in the gaseous ternary mixtures CF 3 I-SF 6 -N 2 and CF 3 I-SF 6 -CO 2 have been measured using a pulsed Townsend apparatus over the density-normalized electric field intensity, E/N, from 230 to 470 Td and 230 to 430 Td, respectively (1 Td = 10 −17 V cm 2 ). Several ternary gas mixture compositions containing 10% to 50% CF 3 I or SF 6 and either N 2 or CO 2 have been studied. Also, we have measured the critical field strength, E/N crit , for all of these gaseous mixtures, finding out that the 40% CF 3 I–40% SF 6 –20% N 2 and 40% CF 3 I–40% SF 6 –20% CO 2 have an E/N crit value smaller by only 4.0% and 1.0%, respectively than that of pure SF 6 (360 Td). Provided that both CF 3 I, CO ...

中文翻译：

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气态三元混合物CF 3 I-SF 6 -N 2和CF 3 I-SF 6 -CO 2的电子群系数和临界场强

使用脉冲汤森德装置在密度归一化电场上测量了气态三元混合物CF 3 I-SF 6 -N 2和CF 3 I-SF 6 -CO 2中的电子漂移速度，纵向扩散和有效电离系数。强度E / N分别为230至470 Td和230至430 Td（1 Td = 10 -17 V cm 2）。已经研究了几种含有10％至5​​0％CF 3 I或SF 6以及N 2或CO 2的三元气体混合物组合物。同样，我们测量了所有这些气体混合物的临界场强E / N临界，发现40％CF 3 I–40％SF 6 –20％N 2和40％CF 3 I–40％ SF 6 –20％CO 2的E / N临界值分别比纯SF 6（360 Td）小4.0％和1.0％。前提是CF 3 I，CO ...