 In 1955 and 1956 , Creutz spent a year at Los Alamos evaluating its thermonuclear fusion program for the Atomic Energy Commission . While there he was approached by <unk> de Hoffmann , who recruited him to join the General Atomics division of General <unk> . He moved to La <unk> , California , as its Vice President for Research and Development , and was concurrently the Director of its John Jay Hopkins Laboratory for Pure and Applied Science from 1955 to 1967 . He was also a member of the Advisory Panel on General Science at the Department of Defense from 1959 to 1963 . 
