University of Oulu

Trzaska, W.H., Slupecki, M., Bandac, I. et al. Eur. Phys. J. C (2019) 79: 721.

Cosmic-ray muon flux at Canfranc Underground Laboratory

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Author: Trzaska, Wladyslaw Henryk1; Slupecki, Maciej1; Bandac, Iulian2;
Organizations: 1Department of Physics, University of Jyväskylä, Jyväskylä, Finland
2Laboratorio Subterraneo de Canfranc, Canfranc, Spain
3Institute of Nuclear Research, Russian Academy of Sciences, Moscow, Russia
4Kerttu Saalasti Institute, University of Oulu, Oulu, Finland
5Moscow Institute of Physics and Technology, Moscow, Russia
Format: article
Version: published version
Access: open
Online Access: PDF Full Text (PDF, 1.6 MB)
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Language: English
Published: Springer Nature, 2019
Publish Date: 2019-09-03


Residual flux and angular distribution of high-energy cosmic muons have been measured in two underground locations at the Canfranc Underground Laboratory (LSC) using a dedicated Muon Monitor. The instrument consists of three layers of fast scintillation detector modules operating as 352 independent pixels. The monitor has a flux-defining area of 1 m² and covers all azimuth angles, and zenith angles up to 80°. The measured integrated muon flux is (5.26±0.21)×10⁻³ m⁻²s⁻¹ in the Hall A of the LAB2400 and (4.29±0.17)×10⁻³3 m⁻²s⁻¹ in LAB2500. The angular dependence is consistent with the known profile and rock density of the surrounding mountains. In particular, there is a clear maximum in the flux coming from the direction of the Rioseta valley.

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Series: The European physical journal. C, Particles and fields
ISSN: 1434-6044
ISSN-E: 1434-6052
ISSN-L: 1434-6044
Volume: 79
Article number: 721
DOI: 10.1140/epjc/s10052-019-7239-9
Type of Publication: A1 Journal article – refereed
Field of Science: 114 Physical sciences
Funding: This work has been supported in part by the Council of Oulu Region, the European Union Regional Development Fund, and by the grant of the Ministry of Education and Science of the Russian Federation number 3.3008.2017.
Copyright information: © The Author(s) 2019. This article is distributed under the terms of the Creative Commons Attribution 4.0 International License (, which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.