Studies of the high energy muon flux in Unirea salt mine from Slanic Prahova

摘要

The muons represent the EAS penetrating component and carry information aboutthe mass and the energy of the primary cosmic particle, under the influence of the Earth magneticfield. The study of the high energy muon flux brings new informations regarding the muonmultiplicities and the hadronic interaction models. The high energy muons represent, also, the maincontribution at the natural radiation dose in underground which is important for low backgroundmeasurements. A new experimental facility for studies of high energy muons is proposed asunderground facility in a salt mine in Slanic Prahova, Romania. Simulation studies using CORSIKAand MUSIC codes estimate the expected muon rate at aprox. 600 mwe (meter water equivalent). Theenergy cut off is estimated to be 150"00 GeV. A new mobile laboratory which permit measurementsat surface and in underground is in construction. For the future a muon experiment (MUON-UG) isplanned to get installed in the mine to study hadronic interaction features as revealed by the flux andthe multiplicities of high energy muons.