gamma decay

American  

noun

Physics.

1. type of radioactivity in which an unstable atomic nucleus dissipates energy by gamma emission, producing gamma rays.

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gamma decay Scientific  

1. A radioactive process in which an atomic nucleus loses energy by emitting a gamma ray (a stream of high-energy photons). When an element undergoes gamma decay its atomic number and mass number do not change.

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Example Sentences

It is again constructive to verify the conservation laws for gamma decay.

From Textbooks • Aug. 12, 2015