How to Detect Density Anomalies in Mining Activities with Cosmic Rays Detected by a Muons Telescope

Summary The fact that the earth is constantly bombarded by an isotropic flux of cosmic rays has permitted to develop a new detection method that can only look over the observation point, but powerful enough to detect anomalies in front of a tunnel boring machine (TBM) digging a gallery. To do that, a cosmic ray detector, a muons telescope is set up on a TBM, looking towards. Cosmic radiations generate very short-lived particles in the upper...