气候变化领域集成服务门户(CCPortal): Influence of Elastic Scattering on Electron Swarm Distribution in Electrified Gases

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DOI	10.1029/2019JD031564
	Influence of Elastic Scattering on Electron Swarm Distribution in Electrified Gases
	Schmalzried A.; Luque A.
发表日期	2020
ISSN	2169897X
卷号	125 期号:10
英文摘要	The propagation of energetic electrons through air is one key component in the generation of high-energy atmospheric phenomena such as lightning-generated X-ray bursts, terrestrial gamma ray flashes (TGFs), and gamma ray glows. We show here that models for this propagation can be considerably affected by the parameterization of the differential cross section of elastic scattering of electrons on the molecular components of air. We assess existing parameterizations and propose a more accurate one that builds upon the most up-to-date measurements. Then we conclude that by overweighting the forward scattering probability, previous works may have overestimated the production of runaway electrons under high electric fields close to the thermal runaway threshold. ©2020. The Authors.
英文关键词	differential cross section; electron elastic scattering; electron swarm dynamics; Monte Carlo electron simulation; screened Rutherford; thermal runaway
语种	英语
来源期刊	Journal of Geophysical Research: Atmospheres
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/186009
作者单位	Instituto de Astrofísica de Andalucía (IAA), CSIC, Granada, Spain
推荐引用方式 GB/T 7714	Schmalzried A.,Luque A.. Influence of Elastic Scattering on Electron Swarm Distribution in Electrified Gases[J],2020,125(10).
APA	Schmalzried A.,&Luque A..(2020).Influence of Elastic Scattering on Electron Swarm Distribution in Electrified Gases.Journal of Geophysical Research: Atmospheres,125(10).
MLA	Schmalzried A.,et al."Influence of Elastic Scattering on Electron Swarm Distribution in Electrified Gases".Journal of Geophysical Research: Atmospheres 125.10(2020).