synchrotron radiation

noun

Definition of synchrotron radiation 

: radiation emitted by high-energy charged relativistic particles (such as electrons) when they are accelerated by a magnetic field (as in a nebula)

First Known Use of synchrotron radiation

1956, in the meaning defined above

History and Etymology for synchrotron radiation

from its having been first observed in a synchrotron

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The first known use of synchrotron radiation was in 1956

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