Measurements of muon flux in the Pyhäsalmi underground laboratory

• DOI: 10.1016/j.nima.2005.08.065
• Publication Date: 2005-09-03T07:14:26Z
• Authors: T. Enqvist; A. Mattila; V. Föhr; T. Jämsén; M. Lehtola; J. Narkilahti; J. Joutsenvaara; S. Nurmenniemi; J. Peltoniemi; H. Remes; J. Sarkamo; C. Shen; I. Usoskin
• Keywords: High Energy Physics - Experiment (hep-ex); 0103 physical sciences; FOS: Physical sciences; 01 natural sciences; High Energy Physics - Experiment

8 pages, 2 figures. Submitted to Nuclear Instrum. Methods A<br/>The cosmic-ray induced muon flux was measured at several depths in the Pyh��salmi 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.<br/>