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Advances in High Energy Physics
Volume 2013, Article ID 256230, 7 pages
Research Article

A Mobile Detector for Muon Measurements Based on Two Different Techniques

1Horia Hulubei National Institute for Physics and Nuclear Engineering, 077125 Magurele, Romania
2Institute of Experimental Nuclear Physics, Karlsruhe Institute of Technology-Campus North, 76021 Karlsruhe, Germany
3Department of Physics, University of Bucharest, 077125 Magurele, Romania

Received 25 October 2012; Accepted 17 February 2013

Academic Editor: Maury Goodman

Copyright © 2013 B. Mitrica et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


Precise measurements of the muon flux are important for different practical applications, both in environmental studies and for the estimation of the water equivalent depths of underground sites. A mobile detector for cosmic muon flux measurements has been set up at IFIN-HH, Romania. The device is used to measure the muon flux on different locations at the surface and underground. Its first configuration, not used in the present, has been composed of two 1 m2 scintillator plates, each viewed by wave length shifters and read out by two Photomultiplier Tubes (PMTs). A more recent configuration, consists of two 1 m2 detection layers, each one including four 1 · 0,25 m2 large scintillator plates. The light output in each plate is collected by twelve optical fibers and then read out by one PMT. Comparative results were obtained with both configurations.