Fig. 6.From: Development of a portable assembly-type cosmic-ray muon module for measuring the density structure of a column of magma(a) Typical angular-dependent muon events collected by the muon telescope. (b) Horizontal angle distribution of the normalized events. (c) Distribution of the deviations of the horizontal muon distribution from the fitting function. Statistic errors can be neglected and the deviations are mainly from other sources.Back to article page