Atmospheric gamma-ray and neutron flashes

被引：34

作者：

Babich, L. P. ^{[1
]}

Kudryavtsev, A. Yu. ^{[1
]}

Kudryavtseva, M. L. ^{[1
]}

Kutsyk, I. M. ^{[1
]}

机构：

[1] All Russian Res Inst Expt Phys, Russian Fed Nucl Ctr, Sarov 607188, Russia

来源：

JOURNAL OF EXPERIMENTAL AND THEORETICAL PHYSICS | 2008年 / 106卷 / 01期

关键词：

D O I：

10.1134/S1063776108010056

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Gamma-ray pulses are calculated from 2D numerical simulations of an upward atmospheric discharge in a self-consistent electric field using the multigroup approach to the kinetics of relativistic runaway electrons (REs). Computed y-ray numbers and spectra are consistent with those of terrestrial gamma-ray flashes (TGFs) observed aboard spacecrafts. The RE flux is concentrated mainly within the domain of the Blue Jet fluorescence. This confirms that exactly the domain adjacent to a thundercloud is the source of the observed y-ray flashes. The yield of photonuclear neutrons is calculated. One y-ray pulse generates similar to 1014-10(15) neutrons. The possibility of the direct deposition of REs to the detector readings and the origin of the lightning-advanced TGFs are discussed.

引用

页码：65 / 76

页数：12

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