Centro de Ciências e Tecnologias Nucleares (C²TN) is a multi- and interdisciplinary Research Unit of Instituto Superior Técnico (IST) recognized as a national reference unit and a major international player in applications of Nuclear Sciences and Technologies and Ionizing Radiation. It is dedicated to scientific excellence, carrying out cutting-edge research, high-level services, and advanced training.

Guided by its motto, “Radiation for Science and Society”, C2TN upholds a commitment to scientific excellence while actively addressing societal challenges within the scope of its areas of competence, namely, Earth Sciences, Environment, Cultural Heritage Life and Radiological Protection, Health Sciences, and Material Sciences.

C2TN researchers hold unique scientific, technological and engineering competence and skills both in Portugal and, in some topical areas, in international scientific arenas. They operate and make available to different scientific communities, laboratories, equipment and infrastructures, some of them exclusive in Portugal.

Under modern governance rules and promoting gender balance, C²TN has five Research Groups that carry out RD&I activities within the scope of three Thematic Lines: Earth Systems, Radioactivity and Cultural Heritage, Radiopharmaceutical Sciences and Health Physics and Advanced Materials.