Gordon Dean - Atomic Energy Commission

Atomic Energy Commission

Dean was appointed by President Harry S. Truman as one of the original Commissioners of the AEC in May 1949, by which time McMahon had become Senator (in 1944), author of the Atomic Energy Act of 1946, and chair of the Joint Atomic Energy Committee of Congress. Dean was then appointed as the second Chairman of the AEC beginning in May 1950, following David Lilienthal, again with McMahon's backing. As early as 1950, Dean advocated for the appointment of a Presidential Science Advisor and science advisory task force. Dean served at the time of the Lawrence Livermore National Laboratory's creation in 1952. During Dean's tenure as Chairman, McCarthyism reached its peak. Robert Oppenheimer came under attack by Lewis Strauss, Edward Teller and others for his alleged foot-dragging at Los Alamos. Dean defended Oppenheimer. As Cold War tensions heightened and the Korean War raged on, Dean led a massive industrialization of the United States nuclear facilities. The hydrogen bomb, a nuclear weapon of massive and unprecedented force, was perfected during his tenure as Chairman with the detonation of the Ivy Mike hydrogen bomb, based on Edward Teller's design in October 1952. Dean served for a brief period under President Eisenhower as well, staying until the completion of his term on June 30, 1953.