Associate professor physics Purdue University, 1949-1958. Fulbright professor physics and chemistry U. Paris (France), 1959-1961. Senior physicist Argonne National Laboratory, 1958-1965.
Professor physics and chemistry University of Chicago, 1966-1973, also master physical science, collegiate div. and associate dean college. Consultant National Bureau Standards, Argonne National Laboratory, Oak Ridge National Laboratory Chairman Gordon Conference Radiation Chemistry, 1956. Vice chairman subcommittee penetration charged particles, committee nuclear science National Research Council.
1950-1959, chairman subcommittee effects ionizing radiation, 1958-1970.