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Article overview
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Simple reactor model of relativistic runaway electron avalanche development | | Egor Stadnichuk
; Daria Zemlianskaya
; Ekaterina Svechnikova
; Eduard Kim
; Alexander Sedelnikov
; Oraz Anuaruly
; | | Date: |
2 Jan 2023 | | Abstract: | High-energy gamma radiation in the Earth’s atmosphere is associated with the
bremsstrahlung of Relativistic Runaway Electron Avalanches (RREA) developing in
thunderstorm electric fields. In this paper, RREA development is studied in the
system of two strong electric-field regions within thunderstorms, which
accelerate runaway electrons toward each other. Such a system is called the
simple reactor. It is discovered that the propagation of gamma rays and runaway
electrons from one region to another leads to positive feedback. This feedback
called the reactor feedback can make RREA self-sustaining, thus effectively
multiplying high-energy particles inside thunderstorms containing the simple
reactor. The spectrum and characteristic time scale of the simple reactor gamma
radiation are in agreement with Terrestrial Gamma-ray Flashes (TGFs) data. The
applicability of the simple reactor model to TGF is discussed, and the
distinguishing observable properties of the simple reactor radiation during TGF
and Thunderstorm Ground Enhancement are considered. | | Source: | arXiv, 2301.00542 | | Services: | Forum | Review | PDF | Favorites | |
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