Measurement of the muon flux in the bunker of Monte Soratte with the CRC detector

In the context of PTOLEMY project, need for a site with rather low cosmogenic induced background led us to measure differential muon flux inside bunker Monte Soratte, located about 50~km north Rome (Italy). The measurement was performed Cosmic Ray Cube (CRC), portable tracking device. simple operation crucial finalise measurements, as they were carried out during COVID-19 lockdown and in devoid scientific equipment. measured at Soratte hypogeum is above two orders magnitude lower than observed on surface, suggesting possible use Mt. hosting astroparticle physics experiments requiring environmental background.