Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1002/2016JD025445 |
Production mechanisms of leptons, photons, and hadrons and their possible feedback close to lightning leaders | |
Kohn, Christoph1,2; Diniz, Gabriel3,4; Harakeh, Muhsin N.5 | |
2017-01-27 | |
发表期刊 | JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES |
ISSN | 2169-897X |
EISSN | 2169-8996 |
出版年 | 2017 |
卷号 | 122期号:2 |
文章类型 | Article |
语种 | 英语 |
国家 | Denmark; Netherlands; Brazil |
英文摘要 | It has been discussed that lightning flashes emit high-energy electrons, positrons, photons, and neutrons with single energies of several tens of MeV. In the first part of this paper we study the absorption of neutron beams in the atmosphere. We initiate neutron beams of initial energies of 350 keV, 10 MeV, and 20 MeV at source altitudes of 4 km and 16 km upward and downward and see that in all these cases neutrons reach ground altitudes and that the cross-section areas extend to several km(2). We estimate that for terrestrial gamma-ray flashes approximately between 10 and 2000 neutrons per ms and m(2) are possibly detectable at ground, at 6 km, or at 500 km altitude. In the second part of the paper we discuss a feedback model involving the generation and motion of electrons, positrons, neutrons, protons, and photons close to the vicinity of lightning leaders. In contrast to other feedback models, we do not consider large-scale thundercloud fields but enhanced fields of lightning leaders. We launch different photon and electron beams upward at 4 km altitude. We present the spatial and energy distribution of leptons, hadrons, and photons after different times and see that leptons, hadrons, and photons with energies of at least 40 MeV are produced. Because of their high rest mass hadrons are measurable on a longer time scale than leptons and photons. The feedback mechanism together with the field enhancement by lightning leaders yields particle energies even above 40 MeV measurable at satellite altitudes. |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000396116900045 |
WOS关键词 | GAMMA-RAY FLASHES ; ELECTRIC-FIELD ; NEUTRON GENERATION ; ENERGY ; MODEL ; SCATTERING ; POSITRONS ; BREAKDOWN ; N-2 |
WOS类目 | Meteorology & Atmospheric Sciences |
WOS研究方向 | Meteorology & Atmospheric Sciences |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/32468 |
专题 | 气候变化 |
作者单位 | 1.Tech Univ Denmark, Natl Space Inst, DTU Space, DK-2800 Lyngby, Denmark; 2.Ctr Math & Comp Sci, CWI, Amsterdam, Netherlands; 3.Inst Nacl Pesquisas Espaciais, BR-12201 Sao Jose Dos Campos, Brazil; 4.Univ Brasilia, Inst Fis, Brasilia, DF, Brazil; 5.Univ Groningen, KVI Ctr Adv Radiat Technol, Groningen, Netherlands |
推荐引用方式 GB/T 7714 | Kohn, Christoph,Diniz, Gabriel,Harakeh, Muhsin N.. Production mechanisms of leptons, photons, and hadrons and their possible feedback close to lightning leaders[J]. JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,2017,122(2). |
APA | Kohn, Christoph,Diniz, Gabriel,&Harakeh, Muhsin N..(2017).Production mechanisms of leptons, photons, and hadrons and their possible feedback close to lightning leaders.JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,122(2). |
MLA | Kohn, Christoph,et al."Production mechanisms of leptons, photons, and hadrons and their possible feedback close to lightning leaders".JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES 122.2(2017). |
条目包含的文件 | 条目无相关文件。 |
除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。
修改评论