From pulsed Townsend measurements in nitrous oxide (N 2 O) we obtain swarm parameters for various electron and in particular anion processes. We discuss various assumptions on the discharge model in literature, and motivate a suitable model. Our findings agree with modern sources on the electron swarm parameters. Contrary to many sources however, we find evidence for electron detachment from O − with a coefficient of ##IMG## [http://ej.iop.org/images/0022-3727/53/13/135202/dab6516ieqn001.gif] ##IMG## [http://ej.iop.org/images/0022-3727/53/13/135202/dab6516ieqn002.gif] m 2 , and we suggest further changes to the commonly accepted discharge model. Based on the obtained swarm parameters, an electric strength dependent on pressure is estimated and compared to breakdown measurements.

中文翻译：

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N 2 O放电中电子和阴离子动力学的测量和建模

通过对一氧化二氮（N 2 O）进行脉冲Townsend测量，我们获得了各种电子尤其是阴离子过程的群参数。我们讨论文献中有关排放模型的各种假设，并提出合适的模型。我们的发现与关于电子群参数的现代资料相吻合。但是，与许多来源相反，我们发现了电子从O-脱离的证据，系数为## IMG ## [http://ej.iop.org/images/0022-3727/53/13/135202/dab6516ieqn001.gif ] ## IMG ## [http://ej.iop.org/images/0022-3727/53/13/135202/dab6516ieqn002.gif] m 2，我们建议对常用的放电模型进行进一步的更改。基于获得的群参数，估计取决于压力的电气强度，并将其与击穿测量值进行比较。