"There are many variations of muon imaging, but they all typically involve gas-filled chambers. As muons zip through the gas, they collide with the gas particles and emit a telltale flash of light, which is recorded by the detector, allowing scientists to calculate the particle's energy and trajectory."

Cosmic Rays Reveal Hidden Ancient Burial Chamber Underneath Naples

https://arstechnica.com/science/2023/05/cosmic-rays-reveal-hidden-ancient-burial-chamber-underneath-naples/amp/ via Ars Technica
Photo: V. Tioukov et al/"Scientific Reports"
#Naples #Archeology #Muography