Born in 1936, Chemistry at Heidelberg, Vienna and Karlsruhe, PhD (1964 with D. Schulte-Frohlinde) and Habilitation (1970) at Karlsruhe. Postdoc with F. S. Dainton (Leeds). 1960-1970 Nuclear Research Center Karlsruhe, 1970- 2001 Max-Planck-Institut f]r Strahlenchemie, M]lheim. After retirement continuing collaboration with the Leibniz-Institut f]r Oberfldchenmodifizierung (IOM), Leipzig.