CCC-based muon telescope for examination of natural caves

A portable cosmic muon detector has been developed for geophysical application: searching for large scale underground rock/soil inhomogeneities and underground cavities. The designed muon telescope called Muontomograph is based on the recently developed Closed Cathode Chamber (CCC) technology, which provides a cheap, easy handling, portable, and power efficient detector system, able to work even at extreme conditions (e.g. high humidity, low/high temperature). The muon telescope has about 0.1 m2 detection surface with 10 mrad angular resolution. Tests have been performed in natural caves and artificial tunnel systems as well. In the paper a summary of the first results on tomographed cavities are presented and the geophysical and possible industrial use of the cosmic muon tomograph technology is indicated.