تعريف robert jemison van de graaff في الإنجليزية الإنجليزية القاموس.
v. born Dec. 20, 1901, Tuscaloosa, Ala., U.S. died Jan. 16, 1967, Boston, Mass. U.S. physicist. He worked as an engineer, then as a physics researcher at the University of Oxford (1925-29). From 1931 he continued his research at MIT, as a professor (1934-60). He developed a high-voltage electrostatic generator (later called the Van de Graaff generator) that served as a type of particle accelerator. In 1946 he cofounded the High Voltage Engineering Corp. to manufacture his accelerator. Widely used in atomic research, the device was also adapted to produce high-energy X rays for medical and industrial uses