bremsstrahlung

[brem-shtrah-luhng]
noun Physics.
radiation emitted by a charged particle when accelerating, as x-rays emitted by an electron that is scattered by a nucleus.

Origin:
1940–45; < German, equivalent to Brems(e) brake + Strahlung radiation

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World English Dictionary
bremsstrahlung (ˈbrɛmzˌʃtrɑːləŋ)
 
n
the radiation produced when an electrically charged particle, especially an electron, is slowed down by the electric field of an atomic nucleus or an atomic ion
 
[C20: German: braking radiation]

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Example sentences
In addition, bremsstrahlung generated photon beams are also provided by the bombardment of suitable targets.
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