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electron volt |
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electron voltUnit for measuring the energy of a charged particle (ion or electron) in terms of the energy of motion an electron would gain from a potential difference of one volt. Because it is so small, more usual units are mega-(million) and giga- (billion) electron volts (MeV and GeV). |
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The energy gain of the electron beam is proportional to the acceleration voltage and is expressed in electron volts (eV) that represent the energy gained by a particle of unit charge by passing the potential difference of 1 V. The mass-difference estimate they came up with was about 1 electron volt. 6 electron volts (eV) for a possible neutrino mass. |
electron volt
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