Master of Physics, University Zürich, Switzerland, 1964. Doctor of Experimental Physics, University Zürich, Switzerland, 1967. Habilitation, University Zürich, Switzerland, 1969.
Doctorate (honorary), University Kassel, Germany, 1996.
Honorary research fellow Queen's University, Belfast, Northern Ireland, 1968. Associate professor Universität Würzburg, Germany, 1971-1984. Director Max-Planck Institute für Plasmaphysik, Garching, Germany, since 1985.
Professor experimental physics University Bayreuth, Germany, since 1991. Dean faculty of physics and astronomy Universität Würzburg, 1984-1985. Director Center Interdisciplinary Plasma Science, Garching, Germany, since 2000.
Member German Physical Society (chairman surface science branch 1984-1985, chairman Bavarian section 1985-1997), American Vacuum Society.