Canadian Medical Guide > Physical Sciences > Natural Sciences > Physics > Nuclear Physics > Alpha Particles Terms and Definitions




Alpha Particles

Medical Definition: Positively charged particles composed of two protons and two neutrons, i.e., helium nuclei, emitted during disintegration of very heavy isotopes; a beam of alpha particles or an alpha ray has very strong ionizing power, but weak penetrability.
Guide Notes: ionizing; radiation policy: see Manual index under RADIATION & entries following
Also Called: Alpha Rays

Alpha Particles Medical Definitions and Terms

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