Figure 19 | Scientific Reports

Figure 19

From: Imaging of underground cavities with cosmic-ray muons from observations at Mt. Echia (Naples)

Figure 19

Top: Relative transmission R(\(\rho ,\theta ,\varphi )\) evaluated with the best estimate of the tuff density ρ = 1.71 g/cm3; the black dots lie on the contour of one of the structures which are observed. Bottom: Projection of the black dots in the top figure at z = 25 m, corresponding to the ceiling of a known structure. The drawings were obtained using the software root and Autodesk AutoCAD 2015.

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