Welcome to the web page of Working Package 4 of JRA1.

The main objective of WP4 is to collect new data on radioactive contamination and cosmogenic activation of materials typically used for the construction of detectors employed in rareevent physics and ultra-low background instrumentation The measurements of radiopurity of materials and its optimisation will be carried out using the new capabilities offered by the R&D and facilities of WP 3.
Development and test of purification techniques to improve the radio-purity of different materials.
Development and test of Monte Carlo codes to analyse the cosmogenic activation of different materials.
 Implementation of an up-to-date database containing all the information from the R&D of this task. The database will be accessible to all researchers interested in the use of highly radio-pure materials, and will be extremely helpful for the selection of the materials to be used in a new experiment.

ILIAS database on radiopurity of materials: http://radiopurity.in2p3.fr/