Gran Cava cave in Italian San Silvestro Park, imagined using muon radiography. Cave is marked by black dots and line. Image has been created using MIMA detector.
<p>On the left, muon relative transmission (R). The darker red, the higher number of transmitted and registered muon.
</p><p>On the right, average density of matter (rocks). The darker area, the denser matter lied on the way of muon flux.
</p>
Both graphs use polar reference frame.
Guglielmo Baccani, Lorenzo Bonechi, Massimo Bongi, Debora Brocchini, Nicola Casagli, Roberto Ciaranfi, Luigi Cimmino, Vitaliano Ciulli, Raffaello D'Alessandro, Chiara Del Ventisette, Andrea Dini, Giovanni Gigli, Sandro Gonzi, Silvia Guideri, Luca Lombardi, Barbara Melon, Massimiliano Nocentini, Pasquale Noli, Nicola Mori, Giulio Saracino, Lorenzo Viliani
CC BY 4.0
<a rel="nofollow" class="external free" href="https://www.preprints.org/manuscript/201811.0595/v1">https://www.preprints.org/manuscript/201811.0595/v1</a>