Emilio Segrè Visual Archives

More than 30,000 photos of scientists and their work

Van de Graaff Robert F4

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Van de Graaff Robert F4

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Image title: 
Van de Graaff Accelerator
Credit line: 
Smithsonian Institution, Negative Number 70846, courtesy AIP Emilio Segrè Visual Archives

Van de Graaff Accelerator, built in 1931 by Merle A. Tuve and associates at Carnegie Institution's Division of Terrestrial Magnetism, Washington, DC. First machine to attain energies of 1 million volts. Tuve and associates were able to demonstrate existence of short range nuclear force. This image shows the accelerator as it was displayed in the Smithsonian Institution's National Museum of History and Technology's 'Hall of Nuclear Energy'

Photo date: 
circa 1970
Original format: 
2 photographic prints (black and white; 10 x 8 inches)