University of Oulu

Technical characterization of Calliolab, the new underground laboratory for physics research in Pyhäsalmi mine

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Author: Joutsenvaara, Jari1; Enqvist, Timo1; Isoherranen, Ville1;
Organizations: 1University of Oulu, Oulu Southern Institute, P.O. Box 80000, FIN-90014
2University of Jyväskylä, P.O. Box 35, FIN-40014
3First Quantum Minerals, Pyhäsalmi mine, PL 51, FIN-86801
Format: abstract
Version: published version
Access: open
Online Access: PDF Full Text (PDF, 0.1 MB)
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Language: English
Published: University of Oulu, 2016
Publish Date: 2017-01-09


The development of the infrastructure for scientific work in the Pyhäsalmi mine is currently administered under the Calliolab project, which is managed by a consortium of the Universities of Oulu and Jyväskylä and regional organizations. A new laboratory has been developed in one of the tunnels at 1430 m depth in Pyhäsalmi mine. At this depth the cosmic-ray muon flux is attenuated down to one ppm compared to that on the surface, making the new laboratory an excellent location to conduct astro-particle physics research and material testing, which require ultra-low cosmic-ray background environment. The floor area of the new laboratory, is currently 120 m² and the average height is 9 m providing the volume of 1080 m³ for working space. The laboratory is located 400 m from the main service level of the Pyhäsalmi mine, which is accessible with an elevator from the surface. The laboratory is also connected to the 11 km long maintenance road and it is accessible with a truck.

In this presentation we discuss the current status of Calliolab and it’s technical characterization, such as radon and other radiation background monitoring, ventilation, electricity and the isolation of the laboratory from mining operations We also review the main results from the FP7 design study for utilizing the mine for major neutrino physics experiments. 19.2 Particle and Nuclear Physics Poster 225

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Series: Report series in physical sciences
ISSN: 1239-4327
ISSN-L: 1239-4327
ISBN: 978-952-62-1145-9
Pages: 225 - 225
Article number: 19.2.
Host publication: Proceedings of the 50th annual conference of the Finnish physical society
Host publication editor: Soudunsaari, Tuomas
Conference: Physics days / fysiikan päivät : annual meeting of the Finnish physical society
Field of Science: 215 Chemical engineering
Copyright information: Published in this repository with the kind permission of the publisher.