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首页> 外文期刊>Journal of Physics, D. Applied Physics: A Europhysics Journal >Diffusion correction to the Raether-Meek criterion for the avalanche-to-streamer transition
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Diffusion correction to the Raether-Meek criterion for the avalanche-to-streamer transition

机译:根据雪崩到流光过渡的Raether-Meek准则进行扩散校正

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摘要

Space-charge dominated streamer discharges can emerge in free space from single electrons. We reinvestigate the Raether-Meek criterion and show that streamer emergence depends not only on ionization and attachment rates and gap length, but also on electron diffusion. Motivated by simulation results, we derive an explicit quantitative criterion for the avalanche-to-streamer transition both for pure non-attaching gases and for air, under the assumption that the avalanche emerges from a single free electron and evolves in a homogeneous field.
机译:空间电荷主导的流光放电可以在自由空间中由单个电子产生。我们对Raether-Meek准则进行了重新研究,结果表明流光的出现不仅取决于电离和附着速率以及能隙长度,还​​取决于电子扩散。根据模拟结果,在雪崩从单个自由电子出现并在均匀场中演化的假设下,我们得出了一个纯的非附着性气体和空气雪崩至流光过渡的明确定量标准。

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