Author/Authors :
Enqvist، نويسنده , , T. Yli-Mattila ، نويسنده , , A. and Fِhr، نويسنده , , V. and Jنmsén، نويسنده , , T. and Lehtola، نويسنده , , M. and Narkilahti، نويسنده , , J. and Joutsenvaara، نويسنده , , J. and Nurmenniemi، نويسنده , , S. and Peltoniemi، نويسنده , , J. and Remes، نويسنده , , H. and Sarkamo، نويسنده , , J. and Shen، نويسنده , , C. and Usoskin، نويسنده , , I.، نويسنده ,
Abstract :
The cosmic-ray induced muon flux was measured at several depths in the Pyhنsalmi mine (Finland) using a plastic scintillator telescope mounted on a trailer. The flux was determined at four different depths underground at 400 m (980 m.w.e), at 660 m (1900 m.w.e), at 990 m (2810 m.w.e) and at 1390 m (3960 m.w.e) with the trailer, and also at the ground surface. In addition, previously measured fluxes from depths of 90 m (210 m.w.e) and 210 m (420 m.w.e) are shown. A relation was obtained for the underground muon flux as a function of the depth. The measured flux follows well the general behaviour and is consistent with results determined in other underground laboratories.
Keywords :
Underground laboratory , Measured muon flux , Muon background , Cosmic-ray induced muon , Plastic scintillation detector
