Alvin Weinberg (1915-2006) was a scientist and director of Oak Ridge National Laboratory (ORNL) from 1955–1973.
From the ORNL website: "Weinberg came to ORNL in 1945 to join the Physics Division at the urging of mentor Eugene Wigner, became division chief in 1947, then succeeded Wigner as ORNL research director in 1948. Weinberg is credited with communicating the meaning and intent of "Big Science," a phrase that has become commonplace among both scientists and policymakers. Weinberg led ORNL through years of maturing and diversification, and served as a scientific advisor to Presidents Dwight D. Eisenhower and John F. Kennedy. A proponent of nuclear energy, he wrote often of issues concerning nuclear energy and the broader relationship between society and technology."