annihilation radiation


Definition of annihilation radiation

: radiation produced by the mutually annihilating coalescence of a particle and its antiparticle from which two radiation quanta travel in opposite directions with a wavelength corresponding to that of very short gamma rays, being approximately 0.024 angstrom

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First Known Use of annihilation radiation

1935, in the meaning defined above

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The first known use of annihilation radiation was in 1935

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Cite this Entry

“Annihilation radiation.” Dictionary, Merriam-Webster, Accessed 24 Nov. 2020.

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