In cooperation with Sievert Consultancy, Cork, Ireland, Hellenic Centre of Marine Research, Anavyssos, and School of Physics, Aristotle University of Thessaloniki, Greece, Sievert Association started the organization of the International Conference on Radiation Applications in Physics, Chemistry, Biology, Medical Sciences, Engineering and Environmental Sciences – RAP 2023 to be held in Anavyssos, Aticca, Greece, May 29 – June 2, 2023.