With his doctorate in hand , Agnew returned to Los Alamos as a National Research Foundation Fellow , and worked on weapons development in the Physics Division . In 1950 , he was assigned to the thermonuclear weapons project , and was project engineer for the Castle Bravo nuclear test at Bikini Atoll in 1954 . He became head of the Weapon Nuclear Engineering Division in 1964
Castle Bravo
Castle Bravo
Harold Agnew