Fast swarm measurements have been performed in hexafluoropropene (C/sub 3/F/sub 6/) with pressures (p) ranging from 20 to 200 Torr and E/p values from 80 to 110 V/cm-Torr. The apparent swarm parameters, derived from a simple model (ionization and attachment only), confirm the pressure dependences reported in the literature. The existence of detachment has been identified from the observed time-resolved avalanche-current waveforms. A model that includes detachment and conversion in addition to ionization and attachment processes has been applied to derive the real swarm parameters in C/sub 3/F/sub 6/. The study indicates that two-body collisional detachment and three-body stabilization of the transient anion C/sub 3/F/sub 6//sup -*/ are responsible for the observed pressure dependence of the dielectric strength of C/sub 3/F/sub 6/.
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机译：已在六氟丙烯（C / sub 3 / F / sub 6 /）中以20至200 Torr的压力（p）和80至110 V / cm-Torr的E / p值进行了快速群测量。从简单模型（仅用于电离和附着）得出的表观群参数证实了文献中报道的压力依赖性。从观察到的时间分辨雪崩电流波形中已经确定了脱离的存在。除电离和附着过程外，还包括分离和转化的模型已被应用于导出C / sub 3 / F / sub 6 /中的真实群参数。研究表明，瞬态阴离子C / sub 3 / F / sub 6 // sup-* /的两体碰撞脱离和三体稳定性是造成C / sub 3 /介电强度与压力关系的原因F / sub 6 /。
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