Latitude effect of muons in the Earth’s atmosphere during solar activity minimum

В. С. Махмутов, Yuri I. Stozhkov, G. A. Bazilevskaya, N. S. Svirzhevsky, Aidar K. Morzabayev

2009

Closed access Metadata (CSL-JSON)
DOI 10.3103/s1062873809030216
Data confidence 70 medium
How this score is calculated

It is built from checkable properties of the record itself: whether the article has a DOI, how many independent sources confirmed its data, whether the required fields are filled in, and how recent the latest confirmation is. Disagreement between sources and a missing identifier lower it. A value of 80 or above means the record was published without further checking; 60 to 79 means it is published at reduced confidence, with a manual check advisable. A record verified by an editor by hand is never pushed below 90 by a recalculation. This scores our data about the article, not the article itself.

Abstract

The results of muon flux measurements ( E ≥ 70 MeV) in the atmosphere during solar activity minimum are reported. The measurements were performed during Antarctic sea expedition in 1975–1976 at several geomagnetic locations (from 1 to 14 GV). The experimental data obtained made it possible to determine the latitude effect of muons in the distribution at different levels in the atmosphere. The Geant4 program was used to simulate the galactic cosmic ray transport in the Earth’s atmosphere and evaluate the angular and spectral distributions (p, e − /e + , photons, muons) at different atmospheric levels. The experimental and simulated results are in satisfactory agreement.