Cosmic-ray muon flux at Canfranc Underground Laboratory
Trzaska, W. H., Slupecki, M., Bandac, I., Bayo, A., Bettini, A., Bezrukov, L., Enqvist, T., Fazliakhmetov, A., Ianni, A., Inzhechik, L., Joutsenvaara, J., Kuusiniemi, P., Loo, K., Lubsandorzhiev, B., Nozik, A., Peña Garay, C., & Poliakova, M. (2019). Cosmic-ray muon flux at Canfranc Underground Laboratory. European Physical Journal C, 79(8), Article 721. https://doi.org/10.1140/epjc/s10052-019-7239-9
Published inEuropean Physical Journal C
Loo, Kai |
DisciplineYdin- ja kiihdytinfysiikan huippuyksikköFysiikkaCentre of Excellence in Nuclear and Accelerator Based PhysicsPhysics
© The Author(s) 2019
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)×10−3 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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Additional information about fundingWe gratefully acknowledge the help and support from the directorate and staff of the Canfranc Underground Laboratory during the design, planning, construction and data acquisition phases of this project. 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. ...
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