By invitation of the Cultural Movement of Students of Alcochete (MCEA), the researchers Helena Casimiro and Luís Cerqueira from Radiation, Elements and Isotopes Group of C2TN gave a lecture on January 22 at Escola Secundária de Alcochete. Researchers presented some of their work involving the use of ionizing radiation technologies for the preparation and characterization of different materials (from biomedical ones to cultural artefacts). This action has contributed to science dissemination and has also promoted an approximation of students with researchers. About 60 students of Sciences and Technologies area attend the session.