1. Status of activities of the WP4 on Radiopurity of Materials Pia Loaiza Laboratoire Souterrain de Modane JRA1 meeting Paris February 14 th, 2006

2. http://radiopurity.in2p3.fr The database is stored in a dedicated server of the Centre de Calcul de Lyon. It is built using MySQL system combined with php scripts which allow to communicate from the web page to the database. Database on radiopurity of materials A reminder: WP4-Pia Loaiza, Feb. 2006

3. Measurements from gamma spectroscopy from: Edelweiss ROSEBUD ANAIS CAST Measurements from ICPMS, Neutron Activation Analysis from: UKDM (information on parent radionucleides) Data included in the database Measurements on 222 Rn by Rn emanation from: Borexino WP4-Pia Loaiza, Feb. 2006

4. Other activities Cosmogenics: Group dedicated to radioisotope production in the WP3 of the JRA2, Integrated Double Beta Decay (IDEA) is actively working on simulations (Susana’s talk). IDEA group: simulations using HMS-ALICE (E n <150 MeV) and YIELDX (E n > 150 MeV). WP4, JRA1: Simulations using Geant4. On going cosmogenic activation measurements in Cooper. Samples cross-check between labs WP4-Pia Loaiza, Feb. 2006 Working group meetings during last year: Gran Sasso, April 2005 Zaragoza, TAUP, September 2005