Dr. John E. Mansfield

Former Board Member

Board Member Photo

Dr. Mansfield is an accomplished theoretical physicist with an exceptionally broad range of experience, both within and outside government, in the management of technology support to national defense programs. From the base of his academic work in elementary particle theory, philosophy, and classical languages, Dr. Mansfield has expanded his interests and contributions to a wide variety of areas of physics, engineering, operations analysis, and political-military studies in support of the national defense and civil space programs.


1997 - PresentMember, Defense Nuclear Facilities Safety Board Nominated by President Clinton, re-nominated by President Bush and confirmed in 2003. Nominated as Vice Chairman by President Bush and confirmed in 2007. Served as Vice Chairman until June 23, 2010.
1994 - 1997Associate Administrator for Space Access and Technology, National Aeronautics and Space Administration, development of advanced technologies for space launch and satellite systems
1989 - 1994Professional Staff Member, Committee on Armed Services, United States Senate, strategic submarines, missiles, aircraft, and nuclear weapons
1986 - 1989Defense Advanced Research Projects Agency, Director of Strategic Technology Office and Chief Scientist of DARPA, research on target recognition, precision weapons, and advanced technologies
1984 - 1986House Armed Services Committee, Professional Staff Member, nuclear weapons and testing, strategic systems, Air Force research and development
1982 - 1984Defense Nuclear Agency, Assistant to the Deputy Director (Science and Technology) for Theoretical Research, nuclear weapons effects, radiation simulators, underground tests, support to theater commanders, security and survivability of nuclear weapons
1976 - 1982Defense Intelligence Agency, Chief, Nuclear Energy and Applied Sciences Division, foreign nuclear weapons, reactors, and advanced technologies
1971 - 1976Science Applications, Inc., Staff Scientist, Principle Scientist, Program Manager, nuclear weapons effects, nuclear reactor safety
1968 - 1970University of Notre Dame, postdoctoral fellow, theoretical physics, elementary particles


  • Ph.D., Harvard University, 1970: Theoretical Physics
  • A.M., Harvard University, 1966: Physics
  • Ph.L., St. Louis University, 1963: Licentiate in Philosophy
  • M.S., St. Louis University, 1963: Mathematics
  • A.B., University of Detroit, 1960: Classical Latin and Greek