M.Sc. from the Danish Technical University (1975), PhD (1979) and dr. scient (1987) in surface science at Odense University, post. doc. in USA and Germany (1978-84), Assoc. prof. at SDU since 1984. Founded in 1994 QUASES-Tougaard Inc. which develops and sells cutting edge software for chemical analysis of surface nanostructures to leading industrial and academic research institutes worldwide. His current research is centered on experimental and theoretical studies of phenomena induced by electron-solid interaction at surfaces and in nano-structures and development of practical experimental methods to determine the chemical composition and electronic properties of nano-structures by electron spectroscopy. He has conducted several EU supported international projects on these subjects, published more than 160 papers and presented more than 45 invited talks at international conferences. He serves on the editorial board for: J. Electron Spectroscopy, Surface and Interface Anal., J. of Surface Analysis, and Surface Science Spectra.