Detecting an Upward Terrestrial Gamma Ray Flash from its Reverse Positron Beam
Publication type: Journal Article
Publication date: 2020-02-29
scimago Q1
wos Q2
SJR: 1.545
CiteScore: 6.7
Impact factor: 3.4
ISSN: 2169897X, 21698996
Space and Planetary Science
Earth and Planetary Sciences (miscellaneous)
Atmospheric Science
Geophysics
Abstract
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.
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9
Total citations:
9
Citations from 2024:
4
(44.44%)
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GOST
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Ortberg J. et al. Detecting an Upward Terrestrial Gamma Ray Flash from its Reverse Positron Beam // Journal of Geophysical Research Atmospheres. 2020. Vol. 125. No. 6.
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Ortberg J., Smith D. M., Li J., Dwyer J. T., Bowers G., Bowers G. H. Detecting an Upward Terrestrial Gamma Ray Flash from its Reverse Positron Beam // Journal of Geophysical Research Atmospheres. 2020. Vol. 125. No. 6.
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RIS
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TY - JOUR
DO - 10.1029/2019jd030942
UR - https://doi.org/10.1029/2019jd030942
TI - Detecting an Upward Terrestrial Gamma Ray Flash from its Reverse Positron Beam
T2 - Journal of Geophysical Research Atmospheres
AU - Ortberg, John
AU - Smith, D. M.
AU - Li, Joseph
AU - Dwyer, J T
AU - Bowers, Gregory
AU - Bowers, Gregory H.
PY - 2020
DA - 2020/02/29
PB - American Geophysical Union
IS - 6
VL - 125
SN - 2169-897X
SN - 2169-8996
ER -
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BibTex (up to 50 authors)
Copy
@article{2020_Ortberg,
author = {John Ortberg and D. M. Smith and Joseph Li and J T Dwyer and Gregory Bowers and Gregory H. Bowers},
title = {Detecting an Upward Terrestrial Gamma Ray Flash from its Reverse Positron Beam},
journal = {Journal of Geophysical Research Atmospheres},
year = {2020},
volume = {125},
publisher = {American Geophysical Union},
month = {feb},
url = {https://doi.org/10.1029/2019jd030942},
number = {6},
doi = {10.1029/2019jd030942}
}