Abstract

Nanosecond electric discharges in atmospheric air at high overvoltages are considered. Plasma channels and diffuse plasma glow simultaneously exist in these discharges. Channels are created by subnanosecond streamers formed in the cathode region. Diffuse glow is caused by runaway electrons emitted by electron avalanche heads. The necessary electric field enhancement is created due to the plasma configuration in the avalanche head and body.

中文翻译：

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空气中纳秒级放电中电子雪崩发射的失控电子

摘要

考虑了大气中高过电压下的纳秒放电。在这些放电中同时存在等离子体通道和弥散的等离子体辉光。通道由在阴极区域中形成的亚纳秒级流光创建。漫射辉光是由电子雪崩头发出的失控电子引起的。由于雪崩头部和身体中的等离子体结构，产生了必要的电场增强。