Welcome to the web page of Working Package 3 of JRA1.

The main objective of WP3 is the construction and upgrading of innovative Ultra Low Background Facilities (ULBF) in the four underground labs They should all together form a new EU coordinated system of facilities for ultra-low background measurement applications in rare event physics and other fields (e.g. environmental physics, archeometry and radioactive dating, geophysics) of world-wide value.
 Implementation of new and innovative techniques to deal with the radioactive background: active and passive shielding, veto systems, particle discrimination techniques, fragmentation of calorimeter detectors, control and suppression of radon levels.
 Study of the feasibility of fabrication of detectors and materials underground.