Abstract
The question of the spatial distribution of fast and thermal neutrons in the Earth’s atmosphere is considered. The fields of fast neutrons from a flat radioactive source with a source energy not exceeding 1 MeV are correctly described by the age theory. The effect of atmospheric in homogeneity affects the height of the source, exceeding 20-25 km. The flux density of slow neutrons falls almost to zero at a distance of about two parameters of the atmospheric in homogeneity.
Published Version
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