Figure 4
From: Three-dimensional muon imaging of cavities inside the Temperino mine (Italy)
(a) the angular distribution of muon counts obtained from installation 1 in the mine (target configuration); (b) the distribution of the counts obtained in the free-sky configuration. (c) the measured muon transmission and (d) simulated transmission for a homogeneous target density of \(2.65 \, \mathrm {g / cm ^ {3}}\). In (c) and (d) the profile of the Gran Cava is shown as a dashed line. (\(\varphi\)). The acceptance in the simulation (d) is larger than that of the detector shown in the other subfigures. The figures show a grid: the circles every 10 degrees represent the zenith angles (\(\theta\)), the lines every 15 degrees represent the azimuth angles. The images are obtained with the ROOT22 framework.
