Research Scientist - 5 years in the department.

Postdoctoral Res. Assoc., Argonne National Lab., Materials Science Div. 1968-1970
Assistant Professor of Physics, Monmouth College (Ill), 1970-1973
Lawrence Livermore Nation. Lab., Physicist/Group Leader 1973-2004
Head, High-Pressure Physics Center of University of California 1984-1994
Harvard University, Associate of Physics Dept. 2004-present