S.L.Dudarev is Head of Materials Group at UK Atomic Energy Authority, and a leader of a EUROfusion Materials subproject. Using a broad range of mathematical methods combined with experimental observations, his group investigates physical and mechanical properties of materials in extreme radiation and temperature environments. S.L. Dudarev was born in Molodechno, Belarus, and studied theoretical and mathematical physics at Moscow Engineering Technical University (MEPhI), receiving MSc (1983) and PhD (1985) degrees in Theoretical Nuclear Physics, and DSc in 1995. In 1989 he was awarded Moscow Komsomol Prize for outstanding scientific achievements in theoretical physics, and a Royal Society USSR Research Fellowship in 1991. He worked at Oxford University, UK between 1992 and 1999, becoming a Fellow of Linacre College in 1995. He is a Visiting Professor at the Department of Physics, Imperial College London, and at the Department of Materials, University of Oxford.