Abstract
A new underground laboratory, Callio Lab, has been established to manage the non-mining related operations in the Pyhäsalmi mine in Pyhäjärvi, Finland. The very deep laboratory space, called Lab 2 of Callio Lab, has been finished in spring 2016 at the depth of 1430 meters (4100 m.w.e.) and it has the area of approximately 120 m2 and the height of 8 meters.
We present the structure of Callio Lab and the main technical characteristics of the deep Lab 2. We also review the current activities related to astroparticle and radiation physics, such as EMMA muon observatory and C-14 liquid scintillator research. An Open Call process has been opened to invite new scientific experiments to Callio Lab.
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