气候变化领域集成服务门户(CCPortal): Detecting an Upward Terrestrial Gamma Ray Flash from its Reverse Positron Beam

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DOI	10.1029/2019JD030942
	Detecting an Upward Terrestrial Gamma Ray Flash from its Reverse Positron Beam
	Ortberg J.; Smith D.M.; Li J.; Dwyer J.; Bowers G.
发表日期	2020
ISSN	2169897X
卷号	125 期号:6
英文摘要	In 2015, Bowers et al. (2018, https://doi.org/10.1029/2017JD027771) detected a terrestrial gamma ray flash (TGF) in Hurricane Patricia from an aircraft flying at 2.6 km through what they argued to be a beam of downward gamma radiation produced by the positron component of the TGF. This paper uses the energy spectrum for gamma rays produced by the positrons of a relativistic runaway electron avalanche as simulated by the REAM code, propagated through a model of the Earth's atmosphere in Geant4, to examine the feasibility of detecting a typical upward TGF through its reverse positron beam at various altitudes on the ground. We find that, with patience, modest-sized scintillators on mountains as low as 1 km should be able to observe the same TGFs seen from spacecraft. ©2020. American Geophysical Union. All Rights Reserved.
英文关键词	gamma ray; lightning; TGF
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/186123
作者单位	Physics Department and Santa Cruz Institute for Particle Physics, University of California, Santa Cruz, CA, United States; Carnegie Mellon University, Pittsburgh, PA, United States; Department of Physics and Space Science Center (EOS), University of New Hampshire, Durham, NH, United States; Los Alamos National Laboratory, Los Alamos, NM, United States
推荐引用方式 GB/T 7714	Ortberg J.,Smith D.M.,Li J.,et al. Detecting an Upward Terrestrial Gamma Ray Flash from its Reverse Positron Beam[J],2020,125(6).
APA	Ortberg J.,Smith D.M.,Li J.,Dwyer J.,&Bowers G..(2020).Detecting an Upward Terrestrial Gamma Ray Flash from its Reverse Positron Beam.Journal of Geophysical Research: Atmospheres,125(6).
MLA	Ortberg J.,et al."Detecting an Upward Terrestrial Gamma Ray Flash from its Reverse Positron Beam".Journal of Geophysical Research: Atmospheres 125.6(2020).