Bachelor, Gettysburg College, Pennsylvania, 1950. Doctor of Science (honorary), Gettysburg College, Pennsylvania, 1968. Doctor of Philosophy, Massachusetts Institute of Technology, 1956.
Dr honoris causa, Catholic University Leuven, Belgium, 1980.
Member faculty, Massachusetts Institute of Technology, since 1958;
professor nuclear engineering, Massachusetts Institute of Technology, since 1965;
McAfee professor engineering, Massachusetts Institute of Technology, since 1983;
head department, Massachusetts Institute of Technology, 1975-1981;
director reactor safety study, Atomic Energy Commission, 1972-1975;
member, Defense Science Board, 1974-1978;
senior consultant, Defense Science Board, 1978-1984;
member of national sci board, National Science Foundation, 1982-1988;
professor emeritus, Massachusetts Institute of Technology, since 1993. Member Presidential Advisory Group on Contributions Technology to Economics Strength, 1975. Director Bedford Engineering Corporation.
Advising committee components technical division Argonne Universities Association, 1977-1980. Chairman science review committee Idaho National Engineering Laboratory, 1977-1986. Member of advisory council Princeton Plasma Physics Laboratory, 1983-1991.
Member safety advisory board Three Mile Island Unit-2 Program, 1980-1990. Trustee N.E. Utilities, since 1977.
Chairman Lincoln-Sudbury School Committee, 1971-1972. Board directors Atomic Industrial Forum, 1980-1984. Member Utility Science Review Council for Nuclear Safety Analysis Center.
Served with United States Naval Reserve, 1945-1946. Fellow American Nuclear Society (special award nuclear power reactor safety 1976, Theos J. Thompson award nuclear reactor safety division 1981, board directors 1976-1980, Ahlstrom prize 1990). Member American Academy Arts and Sciences, National Academy Engineering, National Academy of Sciences, Society Risk Analysis, Health Physics Society.
Married Thalia Tichenor, August 23, 1952. Children: Neil, Arlene.