气候变化领域集成服务门户(CCPortal): Generation Possibility of Gamma-Ray Glows Induced by Photonuclear Reactions

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DOI	10.1029/2020JD034101
	Generation Possibility of Gamma-Ray Glows Induced by Photonuclear Reactions
	Diniz G.S.; Ferreira I.S.; Wada Y.; Enoto T.
发表日期	2021
ISSN	2169897X
卷号	126 期号:3
英文摘要	Relativistic runaway electron avalanches (RREAs) imply a large multiplication of high-energy electrons (∼1 MeV). Two factors are necessary for this phenomenon: a high electric field sustained over a large distance and an energetic particle to serve as a seed. The former sustains particle energies as they keep colliding and lose energy randomly; and the latter serves as a multiplication starting point that promotes avalanches. RREA is usually connected to both terrestrial gamma-ray flashes (TGFs) and gamma-ray glows (also known as Thunderstorm Ground Enhancement (TGE) when detected at ground level) as possible generation mechanism of both events, but the current knowledge does not provide a clear relationship between these events (TGF and TGE), beyond their possible common source mechanism, still as they have different characteristics. In particular, their timescales differ by several orders of magnitude. This work shows that chain reactions by TGF byproducts can continue for the timescale of gamma-ray glows and even provide energetic particles as seeds for RREAs of gamma-ray glows. © 2021. American Geophysical Union. All Rights Reserved.
英文关键词	Beta Decay; Gamma-ray glow; Neutron emission; RREA
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/185517
作者单位	Extreme Natural Phenomena RIKEN Hakubi Research Team, Cluster for Pioneering Research, RIKEN, Saitama, Japan; Instituto de Física, Universidade de Brasília, Brazil
推荐引用方式 GB/T 7714	Diniz G.S.,Ferreira I.S.,Wada Y.,et al. Generation Possibility of Gamma-Ray Glows Induced by Photonuclear Reactions[J],2021,126(3).
APA	Diniz G.S.,Ferreira I.S.,Wada Y.,&Enoto T..(2021).Generation Possibility of Gamma-Ray Glows Induced by Photonuclear Reactions.Journal of Geophysical Research: Atmospheres,126(3).
MLA	Diniz G.S.,et al."Generation Possibility of Gamma-Ray Glows Induced by Photonuclear Reactions".Journal of Geophysical Research: Atmospheres 126.3(2021).