Annihilation radiation is a term used in gamma spectroscopy for the photon radiation produced when a particle and its antiparticle collide and annihilate. Most commonly, this refers to 511-keV photons produced by an electron interacting with a positron.
Annihilation radiation is a term used in gamma spectroscopy for the photon radiation produced when a particle and its antiparticle collide and annihilate. Most commonly, this refers to 511-keV photons produced by an electron interacting with a positron.
Source: Wikipedia "Annihilation radiation" · CC BY-SA 4.0
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