van de Graaffn.
/ˌvan də ˈɡrɑːf/, /ˌvan də ˈɡraf/, U.S. /ˈvæn də ˌɡræf/ Used attributively and absol. to designate a machine devised by van de Graaff for generating electrostatic charge by means of a vertical endless belt which collects charge at its lower end from needle points connected to a voltage source and carries it to similar points at the top connected to the inside of a metal dome, whose potential is thereby increased; also a particle accelerator based on this machine.
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the world > matter > physics > electromagnetic radiation > electricity > [noun] > static electricity > instrument for generating
electrophore1777
electrophorus1777
Wimshurst machine1886
van de Graaff1934
the world > matter > physics > atomic physics > particle physics > particle accelerator > [noun] > types of
linac1950
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van de Graaff1973
1934 Rev. Sci. Instruments V. 18/1 The paper discusses the design and construction of a Van de Graaff electrostatic generator capable of an output of 500 microamperes and more than a million volts.
1961 G. R. Choppin Exper. Nucl. Chem. xii. 193 Positive ions..are obtainable in cyclotrons as well as Van de Graaff and linear accelerators.
1973 Physics Bull. Dec. 722/1 Both tandem van de Graaffs and cyclotrons currently accelerate a variety of high quality beams.
1980 J. W. Hill Intermediate Physics xviii. 172 Two metal plates about 5–7 cm apart are..connected to..earth and the dome of a Van de Graaff generator.
This entry has not yet been fully updated (first published 1986; most recently modified version published online December 2021).
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n.1934